Dc Motor Research Papers - Academia.edu (original) (raw)

Precision positioning systems are fundamental components in industrial machines such as machine tools, measuring machines and semiconductor manufacturing systems. The performance of the machines depends on the positioning systems. For... more

Precision positioning systems are fundamental components in industrial machines such as machine tools, measuring machines and semiconductor manufacturing systems. The performance of the machines depends on the positioning systems. For precise positioning are often used DC motors. The paper deals with experimental method of DC motor friction identification. The aim of the paper is determining of suitable way of DC motor friction modeling. At first the basic static friction models are introduced and linear mathematical model of DC motor is established. DC motor friction identification is by means of experimental method done using Newtonś mechanics. For experiment PITTMAN 9413 motor with encoder is used. For measuring of friction torque the measuring I/O card is used which cooperates with Matlab / Simulink by Real Time Toolbox. Then the mathematical model is simulated and compared with real model of DC motor. In the conclusion the effects of particular friction models affecting DC motor are described and the best way of friction modeling for DC motor is determined.

Electronic throttle is a DC motor driven valve that regulates air inflow into the engine's combustion system. The goal of the throttle control system is twofold: to achieve fast and accurate valve plate angle reference tracking, and to... more

Electronic throttle is a DC motor driven valve that regulates air inflow into the engine's combustion system. The goal of the throttle control system is twofold: to achieve fast and accurate valve plate angle reference tracking, and to preserve outwearing of the throttle by constraining physical variables to their normal-operation domains. These high quality control demands are hard to accomplish since the plant is burdened with a strong nonlinear effects of friction and limp-home nonlinearity. For the purpose of controller synthesis first a discrete-time piecewise affine model of the throttle was developed and then a time-optimal model predictive control problem was solved. We propose a procedure to model friction in a discrete-time piecewise affine form that is suitable for simulation and control. The optimal controller action computation can be restated as a mixed-integer program. However, due to the small sampling time, solving such a program on-line (in a receding horizon fashion) is very prohibitive. In this paper we use recent theoretical results that enable off-line pre-computation of the optimal control law in the form of a look-up table. The technique employs invariant set computation and reachability analysis using multi-parametric programming. Finally, we compare experimental results of our approach with the performance of a tuned PID controller coupled with a feedforward compensation of the nonlinearities. We achieve more than two times faster transients while preserving the quality regarding the absence of an overshoot and static accuracy within the measurement resolution.

This paper introduces a novel approach to the manipulation of body-parts ownership, using the tactile rubber hand illusion (RHI) paradigm. In the conventional studies on the RHI, participant's invisible hand and the visible rubber hand... more

This paper introduces a novel approach to the manipulation of body-parts ownership, using the tactile rubber hand illusion (RHI) paradigm. In the conventional studies on the RHI, participant's invisible hand and the visible rubber hand are manually tapped or stroked by an experimenter. Differently, in our approach, a bilateral master-slave system is applied to provide tactile stimulations in a novel interactive manner-active self-touch. Here, we present a 3-DOF masterslave system based on human self-touch characteristics and a validation experiment using an arranged version of the conventional RHI paradigm. In this new version, participants can contact with the rubber hand by manipulating the master device with their right hand and actively touch their own left hand through the slave device. The results demonstrate that the master-slave system can be successfully used to manipulate body-parts ownership, opening up the way to new studies concerning self-touch and body representation.

This paper presents an adaptive position control scheme for DC motors based on an on-line closed loop continuous-time identiflcation method. A fast, non-asymptotic, algebraic identiflcation method is used to estimate simultaneously the... more

This paper presents an adaptive position control scheme for DC motors based on an on-line closed loop continuous-time identiflcation method. A fast, non-asymptotic, algebraic identiflcation method is used to estimate simultaneously the unknown sys- tem parameters and the unmeasured states to update an adaptive position control scheme.

Diagnosis classifies the present state of operation of the equipment, and prognosis predicts the next state of operation and its remaining useful life. In this paper, a prognosis method for the gear faults in dc machines is presented. The... more

Diagnosis classifies the present state of operation of the equipment, and prognosis predicts the next state of operation and its remaining useful life. In this paper, a prognosis method for the gear faults in dc machines is presented. The proposed method uses the time-frequency features extracted from the motor current as machine health indicators and predicts the future state of fault severity using hidden Markov models (HMMs). Parameter training of HMMs generally needs huge historical data, which are often not available in the case of electrical machines. Methods for computing the parameters from limited data are presented. The proposed prognosis method uses matching pursuit decomposition for estimating state-transition probabilities and experimental observations for computing state-dependent observation probability distributions. The proposed method is illustrated by examples using data collected from the experimental setup.

The Brushless dc motor is a simple and robust machine, which has found application over a wide power and speed ranges in different shapes and geometries. This paper presents a new configuration for an integrated starter-generator system... more

The Brushless dc motor is a simple and robust machine, which has found application over a wide power and speed ranges in different shapes and geometries. This paper presents a new configuration for an integrated starter-generator system based on brushless dc motor without permanent magnet technology. The proposed novel motor consists of two magnetically dependent stator and rotor sets (layers), where each stator set includes nine salient poles with windings wrapped around them while, the rotor comprises of six salient poles with no windings. The magnetic field passes through a guide to the rotor then the stator and finally completes its path via the motor housing. To evaluate the motor performance, two types of analysis, namely numerical technique and experimental study have been utilized. In the numerical analysis the finite element analysis is employed, where as in the experimental study, a proto-type motor has been built and tested. The calculated results compare favorably with the test results. Due to the ruggedness of the proposed motor in comparison with the conventional and brushless dc motors it looks very promising for hybrid vehicle.

Modeling and identification of mechanical systems constitute an essential stage in practical control design and applications. Controllers commanding systems that operate at varying conditions or require high precision operation raise the... more

Modeling and identification of mechanical systems constitute an essential stage in practical control design and applications. Controllers commanding systems that operate at varying conditions or require high precision operation raise the need for a nonlinear approach in modeling and identification. Most mechanical systems used in industry are composed of masses moving under the action of position and velocity dependent forces. These forces exhibit nonlinear behavior in certain regions of operation. For a multi-mass rotational system, the nonlinearities, like Coulomb friction and dead zone, significantly influence the system operation when the rotation changes direction. The paper presents nonlinear modeling and identification of a DC motor rotating in two directions together with real time experiments. Linear and nonlinear models for the system are obtained for identification purposes, and the major nonlinearities in the system, such as Coulomb friction and dead zone, are investigated and integrated in the nonlinear model. The Hammerstein nonlinear system approach is used for identification of the nonlinear system model. Online identification of the linear and nonlinear system models is performed using the recursive least squares method. Results of the real time experiments are graphically and numerically presented, and the advantages of the nonlinear identification approach are revealed.

Thyristor Based Speed Control Techniques of DC Motor: A ... strategy in the system. In this paper report thyristor based control of induction machine for two-phase and three-phase system is describe and model was simulated in the MATLAB... more

Thyristor Based Speed Control Techniques of DC Motor: A ... strategy in the system. In this paper report thyristor based control of induction machine for two-phase and three-phase system is describe and model was simulated in the MATLAB simulation. The speed was controlled using the various types of bridge circuit. The variation in speed and torque behaviour of the motor is shown in the result section.

A method for speed control of Brushed DC (BDC) motors is presented. It is particularly applicable to motors with armatures of less than one cubic centimetre. Motors with very small armatures are difficult to control using the usual... more

A method for speed control of Brushed DC (BDC) motors is presented. It is particularly applicable to motors with armatures of less than one cubic centimetre. Motors with very small armatures are difficult to control using the usual Pulse-Width Modulation (PWM) approach, and are apt to overheat if so driven. The technique regulates speed via the back EMF but does not require current-discontinuous drive. Armature heating in small motors under PWM drive is explained and quantified. The method is verified through simulation and measurement. Control is improved and armature losses are minimised. The method can expect to find application in miniature mechatronic equipment.

This paper presents the design of a variable inductor with a rotational magnetic core whose position is controlled in a closed-loop system. This magnetic structure facilitates the impedance changes which may be used for load balancing,... more

This paper presents the design of a variable inductor with a rotational magnetic core whose position is controlled in a closed-loop system. This magnetic structure facilitates the impedance changes which may be used for load balancing, harmonics elimination, transient response improvement, and as a controlled reactor in static VAr compensation (SVC). The design of the inductor and analysis of its impedance change caused by positioning a movable element are carried out by using the finite element method. As a result, the variation range of the impedance is determined. The proposed variable inductor is compared with a typical SVC reactor. The results show good performances in static var compensation with higher reliability and no harmonics generated. For closed-loop control, a secondorder sliding mode controller is designed for position control of the rotating core via a DC motor. Simulation results of the proposed system present highly robust and accurate responses without control chattering in face of nonlinearities and disturbances.

This paper proposes the super-fit memetic differential evolution (SFMDE). This algorithm employs a differential evolution (DE) framework hybridized with three meta-heuristics, each having different roles and features. Particle Swarm... more

This paper proposes the super-fit memetic differential evolution (SFMDE). This algorithm employs a differential evolution (DE) framework hybridized with three meta-heuristics, each having different roles and features. Particle Swarm Optimization assists the DE in the beginning of the optimization process by helping to generate a super-fit individual. The two other meta-heuristics are local searchers adaptively coordinated by means of an index measuring quality of the super-fit individual with respect to the rest of the population. The choice of the local searcher and its application is then executed by means of a probabilistic scheme which makes use of the generalized beta distribution. These two local searchers are the Nelder mead algorithm and the Rosenbrock Algorithm. The SFMDE has been tested on two engineering problems; the first application is the optimal control drive design for a direct current (DC) motor, the second is the design of a digital filter for image processing purposes. Numerical results show that the SFMDE is a flexible and promising approach which has a high performance standard in terms of both final solutions detected and convergence speed.

Efficient operation of a submillimeter interferometer requires remote (preferably automated) control of mechanically tuned local oscillators, phase-lock loops, mixers, optics, calibration vanes and cryostats. The present control system... more

Efficient operation of a submillimeter interferometer requires remote (preferably automated) control of mechanically tuned local oscillators, phase-lock loops, mixers, optics, calibration vanes and cryostats. The present control system for these aspects of the Submillimeter Array (SMA) will be described. Distributed processing forms the underlying architecture. In each antenna cabin, a serial network of up to ten independent 80C196 microcontroller boards attaches to the real-time PowerPC computer (running LynxOS). A multi-threaded, gcccompiled program on the PowerPC accepts top-level requests via remote procedure calls (RPC), subsequently dispatches tuning commands to the relevant microcontrollers, and regularly reports the system status to opticalfiber-based reflective memory for common access by the telescope monitor and error reporting system. All serial communication occurs asynchronously via encoded, variable-length packets. The microcontrollers respond to the requested commands and queries by accessing non-volatile, rewriteable lookup-tables (when appropriate) and executing embedded software that operates additional electronic devices (DACs, ADCs, etc.). Since various receiver hardware components require linear or rotary motion, each microcontroller also implements a position servo via a one-millisecond interrupt service routine which drives a DC-motor/encoder combination that remains standard across each subsystem.

In the motor control industry, digital signal processor (DSP) systems offer major improvements compared to analogue designs, notably enabling to replace speed or position sensors by the implementation of sensorless control algorithms. A... more

In the motor control industry, digital signal processor (DSP) systems offer major improvements compared to analogue designs, notably enabling to replace speed or position sensors by the implementation of sensorless control algorithms. A new viable method that estimates the rotor velocity of a permanent magnet DC-motor from the 'rotor slot harmonics' present in the DC current signal is proposed. This approach is based on both two adaptive digital filters and a frequency estimator, which is fitted to this particular application and compared to a classical technique. Finally, an algorithm that selects the best speed estimation to reach high-speed transient behaviour and to obtain speed estimation error equal to zero at steady state is proposed.

This paper presents a new method to control a synchronous motor in such a way to resemble the characteristics of a dc motor. The method suggests including a second field winding to the rotor of a voltage-source-inverter-fed synchronous... more

This paper presents a new method to control a synchronous motor in such a way to resemble the characteristics of a dc motor. The method suggests including a second field winding to the rotor of a voltage-source-inverter-fed synchronous motor. The angular frequency of the inverter is made equal to the angular rotor speed, (of a self-controlled synchronous motor drive). The added field winding is in space quadrature to the main field winding and is properly excited in such a way as to diminish the direct axis component of the stator current at every load conditions. The motor is controlled to operate with zero power angle from the inverter side and zero direct axis current from the rotor excitation side. Therefore, it operates with minimum stator current and with unity power factor. The addition of the second field winding will not complicate the design because it is just a control winding. This winding may be made with smaller wire cross-section and a larger number of turns. The control on this winding is not complicated and it can be easily created. The synchronous motor along with the added field and the required control loops are simulated and tested extensively. The test results show excellent motor performance in motoring and regenerating modes of operation.

In this study, real time monitoring and controlling of an elevator prototype based on PLC is developed. The software of PLC has been improved in Simatic Version 4.0 and the main control interface is also developed in Visual Basic as more... more

In this study, real time monitoring and controlling of an elevator prototype based on PLC is developed. The software of PLC has been improved in Simatic Version 4.0 and the main control interface is also developed in Visual Basic as more visual. The system has been applied on a laboratory sized elevator prototype which includes a dc motor, sensors for every floor, gas-smoke detectors and temperature sensor. OPC Server protocol is used to transfer data between the PLC and the control interface. The system developed can be used for not only controlling and monitoring an industrial elevator system but also learning the basic principles of a PLC based system and control strategies of elevator systems as an educational material. .

The fundamental equations governing the operation of a dc motor are straightforward and are well presented in most undergraduate curricula, usually in a required energy-conversion or electrical-machinery class at the junior level. The... more

The fundamental equations governing the operation of a dc motor are straightforward and are well presented in most undergraduate curricula, usually in a required energy-conversion or electrical-machinery class at the junior level. The physical implications of the equations regarding device behavior, and the need for speed control, are easily understood. Furthermore, students can readily develop a mental picture of the physical motor and its response.

The widely used cascade speed control scheme for thyristor driven DC-motors can be significantly improved by applying adaptive and robust control methods to compensate for unmeasurable variations of their mechanical and electrical... more

The widely used cascade speed control scheme for thyristor driven DC-motors can be significantly improved by applying adaptive and robust control methods to compensate for unmeasurable variations of their mechanical and electrical characteristics.

The proposed model was build with an aim to maintain constant output torque at a set-point irrespective of varying Wind speed. First a Wind turbine emulator for a Low Power Horizontal Axis Wind turbine using DC Motor was build in Matlab... more

The proposed model was build with an aim to maintain constant output torque at a set-point irrespective of varying Wind speed. First a Wind turbine emulator for a Low Power Horizontal Axis Wind turbine using DC Motor was build in Matlab /Simulink then the strategy control was achieved by using Pitch angle control technique which comprises of an Integral controller and a switch .The output torque of the Wind turbine was fed to DC motor whose armature current was controlled by using a PI Controller.The Simulated result demonstrated a constant DC motor speed, armaturé Current ,armature Voltage at all permissible wind speed of the wind turbine. The developed system can be used to build a Wind Power Generation System.

This correspondence presents a prototype of a powered hand exoskeleton that is designed to fit over the gloved hand of an astronaut and offset the stiffness of the pressurized space suit. This will keep the productive time spent in... more

This correspondence presents a prototype of a powered hand exoskeleton that is designed to fit over the gloved hand of an astronaut and offset the stiffness of the pressurized space suit. This will keep the productive time spent in extravehicular activity from being constrained by hand fatigue. The exoskeleton has a three-finger design, the third and fourth fingers being combined to lighten and simplify the assembly. The motions of the hand are monitored by an array of pressure sensors mounted between the exoskeleton and the hand. Controller commands are determined by a state-of-the-art programmable microcontroller using pressure sensor input. These commands are applied to a PWM driven dc motor array which provides the motive power to move the exoskeleton fingers. The resultant motion of the exoskeleton allows the astronaut to perform both precision grasping tasks with the thumb and forefinger, as well as a power grasp with the entire hand.

This paper presents the automatic water bottle filling system using plc and scada. Automation is the field which reduces the human efforts and labour requirement. One of the important application automation is in the soft drinks and other... more

This paper presents the automatic water bottle filling system using plc and scada. Automation is the field which reduces the human efforts and labour requirement. One of the important application automation is in the soft drinks and other beverage industries, where the particular liquid has to be filled continuously. The machines are specialist for filling water in any kind of bottle. This bottle filling mechanism is done using the various types of sensors. The filling operation is controlled using plc and scada. This whole process is done using the various components like solenoid valve, conveyor belt, sensors.

PID controllers are widely used in industrial plants because it is simple and robust. Industrial processes are subjected to variation in parameters and parameter perturbations, which when significant makes the system unstable. So the... more

PID controllers are widely used in industrial plants because it is simple and robust. Industrial processes are subjected to variation in parameters and parameter perturbations, which when significant makes the system unstable. So the control engineers are on look for automatic tuning procedures. In this paper, the parameters of PID controller are tuned for controlling the armature controlled DC motor. Continuous cycling method & Z-N step response method are the conventional methods whose performance have been compared and analyzed with the intelligent tuning techniques like Genetic algorithm, Evolutionary programming and particle swarm optimization. GA, EP and PSO based tuning methods have proved their excellence in giving better results by improving the steady state characteristics and performance indices.

Autonomous robots are used everywhere nowadays and robotics is also gaining popularity all around the world. This motivated us to make an autonomous robot that can avoid obstacle from its path and do a specific task like Pick and Place... more

Autonomous robots are used everywhere nowadays and robotics is also gaining popularity all around the world. This motivated us to make an autonomous robot that can avoid obstacle from its path and do a specific task like Pick and Place object. The Project is designed to develop a Pick and Place robot for picking and placing objects.

In this study, real time monitoring and controlling of an elevator prototype based on PLC is developed. The software of PLC has been improved in Simatic Version 4.0 and the main control interface is also developed in Visual Basic as more... more

In this study, real time monitoring and controlling of an elevator prototype based on PLC is developed. The software of PLC has been improved in Simatic Version 4.0 and the main control interface is also developed in Visual Basic as more visual. The system has been applied on a laboratory sized elevator prototype which includes a dc motor, sensors for every floor, gas-smoke detectors and temperature sensor. OPC Server protocol is used to transfer data between the PLC and the control interface. The system developed can be used for not only controlling and monitoring an industrial elevator system but also learning the basic principles of a PLC based system and control strategies of elevator systems as an educational material.

We are living in the 21 st century, an era of acquiring necessity in one click. As we, all know that technology is continuously reviving to stay ahead of advancements taking place in this world of making things easier for mankind.... more

We are living in the 21 st century, an era of acquiring necessity in one click. As we, all know that technology is continuously reviving to stay ahead of advancements taking place in this world of making things easier for mankind. Technology has been putting his part in introducing different projects as we have used the field programmable gate arrays (FPGAs) development board of low cost and programmable logic done by the new evolvable cyclone software is optimized for specific energy based on Altera Cyclone II (EP2C5T144) through which we can control the speed of any electronic device or any Motor Control IP product targeted for the fan and pump. Altera Cyclone FPGAs' is a board through which we can monitor the speed and direction of the DC motor. As we know how to make understand, dynamic analog input using an A-to-D convertor and we know how to create pulse width modulation (PWM) output with FPGA. Therefore, by combining these two functions we can create an FPGA DC motor controller. Our paper is divided into three parts: First, all of us will attempt to imitate the issue and can try to look for its answer. Secondly, we will try to verify the solution for real-time. In addition, in the last step, we will verify the solution on the realtime measurements.

This paper deals with the manufacturing of a Prototype of Rotary Car Parking System using Sensors. Lack of space availability has always been a problem in urban areas and major cities and to add to it there are cars parked callously on... more

This paper deals with the manufacturing of a Prototype of Rotary Car Parking System using Sensors. Lack of space availability has always been a problem in urban areas and major cities and to add to it there are cars parked callously on the streets that further limit the space. In order to handle the issue of parking in busy places various types of vehicle parking systems are used worldwide Rotary Automated Car Parking System and many more. This thesis work is aimed to develop a scale down working model of a car parking system which will reduce the excess use of land space. This total prototype is powered by unipolar stepper motor. This model also uses a RFID Tag and Reader. When the car comes on the ramp the switch will be activated and the pallet comes to carry the vehicle. When the switch will be operated by the operator, sprockets starts to rotate and the new space will be adjusted for new vehicle. Planners, developers, architects are finding out solutions to tackle this problem ...

The aim of this paper is to avoid problem of traffic jam. It has more public carrying capacity than regular buses and monorail. It does not require special tracks like BRT, mono, metro. Also does not require large construction and can be... more

The aim of this paper is to avoid problem of traffic jam. It has more public carrying capacity than regular buses and monorail. It does not require special tracks like BRT, mono, metro. Also does not require large construction and can be implemented within short period of time. Here we want to show or explain the technology used in tunnel bus. The automatic stopping of this bus is controlled byan ARM microcontroller. The C programming language is used for programming the microcontroller. The hardware is assembled in a toy like prototype tunnel bus. Actuators and sensors are interfaced with printed circuit board (PCB) which is used for automation purpose. Simulation for the system's circuit is done with the help of Proteus software. RFID reader is used to identification of right track.

In today's world, we see that most of the families consist of mainly the parents and children. When a baby is born in a family there has to be someone to look after the baby. Some parents have to do a double task of keeping a check on the... more

In today's world, we see that most of the families consist of mainly the parents and children. When a baby is born in a family there has to be someone to look after the baby. Some parents have to do a double task of keeping a check on the baby as well as do the household work. Keeping a nanny could be an option but not all can afford nannies and also it is always difficult for parents to rely on some strangers to look after their baby. So to help such parents we have decided to come up with a smart cradle which will help a mother or a father have a track of their child and do some household work simultaneously. The temperature and wetness sensor detects the temperature and wetness of the baby and if it increases a particular level, the message will be sent to the parents. The mic in the system detects, if the baby cries and a song will play through the speaker set up in the APR, also message is sent to the parents. Also, the feeding time of the baby is set using the keypad, and at that time message will be sent to the parents.

The project is to develop a robotic vehicle capable of detecting the presence of fire and extinguishing it automatically. It is a movable robot that consists of gas sensor for detecting the fire, gear motor and motor driver for the... more

The project is to develop a robotic vehicle capable of detecting the presence of fire and extinguishing it automatically. It is a movable robot that consists of gas sensor for detecting the fire, gear motor and motor driver for the movement of the robot, relay driver for pump control and a Bluetooth module which are used for the detecting and extinguishing the fire. Usually, the robot moves at a steady speed. When the gas sensor detects the fire in the environment, the signal indicating the presence of fire will be sent to the Arduino through which the extinguishing is done. In the extinguishing process, whenever the detection of fire is positive the robot will stop at the place of fire occurred and starts the pump and sprinkle water through a sprinkler until the smoke is put off. The entire control is achieved using Arduino which is interfaced with the android mobile via Bluetooth module, so that the control of the robot can be made from an android mobile as well. Keywords: Arduino UNO R3, Gas Sensor, PC with Arduino Software, DC Motor and Driver Circuit, Single Channel Relay Driver Circuit, Pump and Sprinkler ________________________________________________________________________________________________________

This paper proposes the artificial neural network based controller for speed control of a separately excited DC motor. The Artificial Neural Network controller allows controlling both type of systems i.e. linear and non-linear... more

This paper proposes the artificial neural network based
controller for speed control of a separately excited DC motor.
The Artificial Neural Network controller allows controlling both
type of systems i.e. linear and non-linear system by training the
network. So it is a novel approach to study and a broad research
area.
In this paper three controllers “PI, PID, ANC” have been
designed and implemented in the MATLAB /Simulink model to
examine the performance of DC motor with different loads. The
results show that the ANC give better response compared to PI &
PID controller.

This paper presents an on-line fuzzy optimization of the global efficiency of a photovoltaic water pumping system driven by a separately excited DC motor (DCM), a permanent magnet synchronous motor (PMSM), or an induction motor (IM),... more

This paper presents an on-line fuzzy optimization of the global efficiency of a photovoltaic water pumping system driven by a separately excited DC motor (DCM), a permanent magnet synchronous motor (PMSM), or an induction motor (IM), coupled to a centrifugal pump.

Resumen: El presente trabajo trata acerca del diseño y la implementación de un control analógico de velocidad para un motor de CD. Se presenta el modelado del motor de CD, el diseño del control PI, la implementación circuital usando... more

Resumen: El presente trabajo trata acerca del diseño y la implementación de un control analógico de velocidad para un motor de CD. Se presenta el modelado del motor de CD, el diseño del control PI, la implementación circuital usando amplificadores operacionales y el diseño del transductor. El comportamiento adecuado puede verificarse mediante un osciloscopio. Copyright © UPB 2013

The present paper deals with an outdoor environment of Laptop and Mobile Charging Station which provides a charging to the Laptop and Mobile with the help of Solar and Wind Energy &Vertical Windmill (power generators). The equipment has... more

The present paper deals with an outdoor environment of Laptop and Mobile Charging Station which provides a charging to the Laptop and Mobile with the help of Solar and Wind Energy &Vertical Windmill (power generators). The equipment has been developed based on the presentday scenario as the people usually run out of phone and laptop charging while travelling. At such times there is literally no way of charging your phone laptop in an outdoor environment, the solar and wind energy is used in order to collect the solar energy and convert it into the electrical energy and also the vertical windmill is used in order to observe the flow of wind and collect it. These two are intertwined together in the system, and the energy produced by both power generators is stored in a battery. This battery source is now available for use according to the inverter. The system provides 2 types of outputs. 4 USB outputs for charging for laptop and mobiles. The model is built in such a way that a common man can afford and this project model will lead a step ahead for economical utilization.

This paper on "Smart Irrigation System" is develop to create an automated irrigation mechanism which turns the pumping motor ON and OFF on detecting the moisture content of the earth using the soil moisture sensor without the intervention... more

This paper on "Smart Irrigation System" is develop to create an automated irrigation mechanism which turns the pumping motor ON and OFF on detecting the moisture content of the earth using the soil moisture sensor without the intervention of human. The benefit of employing these techniques is to decrease human interference and it is quite feasible and affordable. This Smart irrigation system project is using an arduino micro-controller, that is programmed to collect the input signal according to moisture content of the soil and its output is given to the op-amp that will operate the pump.

Sintesi di un regolatore a doppio anello per il controllo del motore in corrente continua. L’ottimizzazione si basa sul metodo dell’adattamento del modulo in frequenza correntemente impiegato nella fase di messa a punto dell’azionamento... more

Sintesi di un regolatore a doppio anello per il controllo del motore in corrente continua. L’ottimizzazione si basa sul metodo dell’adattamento del modulo in frequenza correntemente impiegato nella fase di messa a punto dell’azionamento in sito. Sulla base del modello matematico del sistema convertitore-motore, si descrivono i circuiti e le prove da effettuare per determinarne le caratteristiche, in relazione ai quali sono calcolati i parametri del regolatore (PI) di corrente e di velocità: guadagno e tempo di integrazione. Infine i rilievi sperimentali compiuti su un sistema reale confermano la validità del metodo nei suoi presupposti teorici.

The regulation by sliding mode control (SMC) is recognized for its qualities of robustness and dynamic response. This article will briefly talk about the regulation principles by sliding mode as well as the application of this approach to... more

The regulation by sliding mode control (SMC) is recognized for its qualities of robustness and dynamic response. This article will briefly talk about the regulation principles by sliding mode as well as the application of this approach to the adjustment of a speed control DC motor bench using the TY36A/EV unit. This unit, from Electronica Veneta products, uses a PID controller to control the speed and position of the DC motor. Our purpose is to improve the set time answer and the robustness of the system when disturbances take place. The experimental results show very good performances of the proposed approach relatively to the PID.

capstone project final report

Line following is one of the most important aspects of Robotics. A Line Follower Robot is an autonomous robot which is able to follow either a black or white line that is drawn on the surface consisting of a contrasting color. It is... more

Line following is one of the most important aspects of Robotics. A Line Follower Robot is an autonomous robot which is able to follow either a black or white line that is drawn on the surface consisting of a contrasting color. It is designed to move automatically and follow the made plot line. The path can be visible like a black line on a white surface or it can be invisible like a magnetic field. It will move in a particular direction Specified by the user and avoids the obstacle which is coming in the path. Autonomous Intelligent Robots are robot that can perform desired tasks in unstructured environments without continuous human guidance. It is an integrated design from the knowledge of Mechanical, Electrical, and Computer Engineering. LDR sensors based line follower robot design and Fabrication procedure which always direct along the black mark on the white surface. The robot uses several sensors to identify the line thus assisting the bot to stay on the track. The robot is driven by DC motors to control the movements of the wheels.

Purpose: To develop system, consisting of controlled DC Motor with two pushbuttons. Specifically, the direction of rotation (clockwise or counter-clockwise) should be defined with pressed pushbutton1 or pushbutton2. When one is pressed,... more

Purpose: To develop system, consisting of controlled DC Motor with two pushbuttons. Specifically, the direction of rotation (clockwise or counter-clockwise) should be defined with pressed pushbutton1 or pushbutton2. When one is pressed, DC motor rotates clockwise, when the other is pressed, DC motor rotates counter-clockwise.
Application: Controlling of DC motor can be useful in every part of engineering task, whether industry related equipment or everyday life electromechanical tools. More complicated systems include elevators, cars, industry conveyors, etc.

Direct currents (DC) motors have been used in variable speed drives for a long time. The versatile characteristics of dc motors can provide high starting torques which is required for traction drives. Control over a wide speed range, both... more

Direct currents (DC) motors have been used in variable speed drives for a long
time. The versatile characteristics of dc motors can provide high starting torques which is
required for traction drives. Control over a wide speed range, both below and above the
rated speed can be very easily achieved. The methods of speed control are simpler and
less expensive than those of alternating current motors.

The design of intelligent control systems has become an area of intense research interest. A promising direction in the design of intelligent systems involves the use of Fuzzy logic controller to discover the abilities of... more

The design of intelligent control systems has become
an area of intense research interest. A promising direction in the
design of intelligent systems involves the use of Fuzzy logic
controller to discover the abilities of intelligent control systems
in utilizing experience via rule-based knowledge.
The most commonly used controller in the industry field is
the proportional plus- integral-plus- derivative (PID). PID
controller requires a mathematical model of the system while
Fuzzy logic controller (FLC) provides an alternative to PID
controller, especially when data are not available or partly
available for the system.
For comparison purpose, three controllers PI, PID and FLC
have been designed and implemented in the MATLAB/Simulink
model to examine the performance of DC motor with different
loads. The results show that the FLC give better response
compared to PI &PID controller.

An automatic brake system for a vehicle consists of an electric motor, related to the motor for transmission motion from the motor to a brake lever that pushes the restraint. This project provides a brand new idea style of the EMPB... more

An automatic brake system for a vehicle consists of an electric motor, related to the motor for transmission motion from the motor to a brake lever that pushes the restraint. This project provides a brand new idea style of the EMPB (electro mechanical parking brakes) system that has straightforward and cheap characteristics. This project deals with coming up with and fabrication of EMPB system. Mechanical device hand brake system conjointly remarked as brake by-wire, replace typical parking braking systems with a totally electrical part system. This happens by replacement typical linkages with electrical motor-driven units. The braking force is generated directly at every wheel by high performance electrical motors and automobile management, that area unit controlled by an ECU. The electronic hand brake replaces the traditional handbrake. It's operated by a switch within the center console. The mechanical device hand brake provides the subsequent edges over the traditional handbrake: easy use-the hand brake is applied totally no matter the strength of the driving force. Safety-the electrical hand brake applies mechanically once the key is off from the ignition.

— The research aim was to the study the intelligent soil moisture control system in agricultural green house based on Adriano Uno microcontroller automation control. This kind of intelligent soil moisture control system helps to control... more

— The research aim was to the study the intelligent soil moisture control system in agricultural green house based on Adriano Uno microcontroller automation control. This kind of intelligent soil moisture control system helps to control the moisture level of the field and supply the water if required. In this research embedding a control system into an automatic water pump controller depend upon the moisture of the soil. This system also ability to detect the level of methane gas in the green house. The intelligent soil moisture control system in agricultural green house designed in the research had wonderful effort of man-machine interface, it is very simple, cheep and convenient high degree of automation system. Not only that this system helps to prevent wastage of water. This system is a prototype, which makes this self-sufficient, watering itself from a reservoir. Solar energy is used in this system makes it more environment friendly.

This paper presents the speed control of DC motor using six pulse controlled rectifier. The conventional Proportional Integral (PI) control is used for firing angle control. The armature current is fed back and compared with reference... more

This paper presents the speed control of DC motor using six pulse controlled rectifier. The conventional Proportional Integral (PI) control is used for firing angle control. The armature current is fed back and compared with reference current representing desired speed values. The proposed system is simulated using SimPowerSystem and Control System Matlab toolbox. The time domain plot of reference and actual armature current are shown in results section. The results are satisfactory with deleterious effect on input current. The frequency plot of input current is provided to show the harmonic contents, generated as a result of control operation.