Speed Control of Induction Motor using Vector Control Technique (original) (raw)
Related papers
2020
Induction machines are widely used in various applications including industrial applications and locomotive applications. The electric systems used in industrial applications are required to have higher performance and reliability requirement so three phase induction motors are preferable because they are simple to design, easy to maintain and are less costly. However, induction motors do not have capability of variable speed operation, it is in that reason, the speed control of induction motor has become essential. This report deals with the investigation, experimental tests and compares the main concept of speed control of induction motor using V/F control method and vector control method with the help of AC2 - Space Vector PWM VSI Induction 3HP Motor Drive Simulink model. Variable voltage and frequency (V/F control) method is the most suitable common method of speed control for the applications without position control requirements for high accuracy of speed control but V/F control is inferior to vector control for complex dynamic behavior of the induction motor so the vector control technique works with vector quantities, controlling the desired values by using space phasors which is a better solution so that the control on flux and torque become independent from each other and the induction motor is transformed from a non-linear to linear control plant. In this report many experiments were investigated though the build in Simulink model did not allow any changes of some parameters, so the two methods of speed control of induction machine were not clearly investigated but it compares the main concepts of the two methods of controlling speed of induction motor.
Speed Control of Induction Motor using Scalar Control Technique
Ijca Proceedings on International Conference on Emergent Trends in Computing and Communication, 2014
This paper presents design and implementation of scalar control of induction motor. This method leads to be able to adjust the speed of the motor by control the frequency and amplitude of the stator voltage of induction motor, the ratio of stator voltage to frequency should be kept constant, which is called as V/F or scalar control of induction motor drive. This paper presents a comparative study of open loop and close loop V/F control induction motor. The V/F control is based on advent of stator voltage derivatives. Simulation is carried out in MATLAB/SIMULINK environment and results are compared for speed control of induction motor.
NIL CONSTANTINN, 2019
As the power supply which is available at the utility side is mostly AC supply. Therefore, the motors used in industries and in domestic appliances are Induction Motors. Hence researchers are attracted towards the speed control issues of Induction Motor. The speed control method of Induction Motor includes the variable stator voltage, variation in supply frequency, vector control, slip recovery and V/F control method. In this paper we are focusing only on the V/F control method, in this method we are maintaining the V/F ratio constant. The electrical areas which are mostly required to control Induction Motor are Control, Power Electronics, and Electrical Machines. Thus, by using Power Electronics devices such as MOSFET's or IGBT's we can easily control the speed of Induction Motor. This technique of speed control we are going to represent with help of MATLAB Simulation.
IJERT-Speed Control of Induction Motor Using Vector Control Technique
International Journal of Engineering Research and Technology (IJERT), 2014
https://www.ijert.org/speed-control-of-induction-motor-using-vector-control-technique https://www.ijert.org/research/speed-control-of-induction-motor-using-vector-control-technique-IJERTV3IS042376.pdf Induction Motor (IM) control is a difficult and complex engineering problem due to multivariable, highly nonlinear, time-varying dynamics and unavailability of measurements. In this paper vector control for speed control of three-phase Squirrel Cage Induction Motor has been developed and analyzed. The present approach avoids use of flux and speed sensors which decreases the mechanical cost and robustness. Vector control has replaced traditional control method such as using the ratio of voltage and frequency as a constant, which improve greatly dynamic control efficiency of motor.
Vector Speed Control of Induction Motor
speed control method is the one of the best ways to control speed of induction motor over full range. Vector speed control method has so many advantages. Such as by using this method we can get full torque at zero speed and rate of acceleration and deacceleration is maximum. It is cost effective and power consumption is very low and fast response. This method is a variable frequency drive method. In this method we can raise speed of the motor above its rated value by field weakening method and for below ranges we are using velocity controller. This paper contains a brief explanation to various speed control techniques, introduction to vector speed control methods, and its advantages and its implementation using MATLAB Simulink and output wave forms.
Speed Control of Induction Motor using PI and V/F Scalar Vector Controllers
In this paper, Induction Motors (IM) are widely used in the industrial application due to a high power/weight ratio, high reliability and low cost. A Space Vector PWM (SVPWM) is utilized for PWM controlling scheme. The performance of both the speed and torque is promoted by a modified PI controller and V/F scalar control. A scalar control is a simple method and it's operated to control the magnitude of the control quantities in constant speed application. V/F scalar control has been implemented and compared with the PI controller. The simulation results showed that Indirect Field oriented control (IFOC) induction motor drive employ decoupling of the stator current components which produces torque and flux. The complete mathematical model of the system is described and simulated in MATLAB/SIMULINK. The simulation results provides a smooth speed response and high performance under various dynamic operations.
Speed Control of Induction Motor by V/F Method
This paper presents the design & implementation of voltage & frequency ratio constant & controller based on sinusoidal pulse width modulation technique for a single phase induction motor using fuzzy logic. The work involves implementation of an closed loop control scheme for an induction motor. The technique is used extensively in the industry as it provides the accuracy required at minimal cost. V/f controlled motors fall under the category of variable voltage variable frequency drives. The ratio of voltage & frequency must be constant.
Speed Control Of An Induction Motor By Using Indirect Vector Control Method
In this paper, an implementation of intelligent controller for speed control of an induction motor (IM) using indirect vector control method has been developed and analyzed in detail. The project is complete mathematical model of field orientation control (FOC) induction motor is described and simulated in MATLAB for studies a 50 HP(37KW), cage type induction motor has been considered. The comparative performance of Fuzzy Logic control technique has been presented and analyzed in this work. The present approach avoids the use of flux and speed sensor which increase the installation cost and mechanical robustness. The fuzzy logic controller is found to be a very useful techniques to obtain a high performance speed control. The indirect vector controlled induction motor drive involve decoupling of the stator current in to torque and flux producing components.
IRJET- Vector Speed Control of Induction Motor
IRJET, 2020
This paper presents the design and implementation of Closed loop Vector Speed control of Induction motor. Vector speed control method is the one of the best ways to control speed of induction motor over full range. Vector speed control method has so many advantages. Such as by using this method we can get full torque at zero speed and rate of acceleration and deacceleration is maximum. It is cost effective and power consumption is very low and fast response. This method is a variable frequency drive method. In this method we can raise speed of the motor above its rated value by field weakening method and for below ranges we are using velocity controller. This paper contains a brief explanation to various speed control techniques, introduction to vector speed control methods, and its advantages and its implementation using MATLAB Simulink and output wave forms.
REVIEW OF SCALAR CONTROL STRATEGY OF INDUCTION MOTOR :CONSTANT V/F METHOD FOR SPEED CONTROL
BJAMI, 2022
This paper presents the design, simulation, and analysis of the speed control of an induction motor powered by a voltage inverter with a pulse-width modulation method. The derived model addresses issues related to the regulation of the motor speed at various supply frequencies. The control strategy of voltage inverter is based on the scalar control with a constant V/f ratio which is important for automated control, controlled start-up, acceleration and stop, and constant flux operation of the motor. The Powersim software is used for the purposes of deriving the simulation model in this paper. The analysis of the output results compares the different speeds of operation, below and above the nominal speed of the motor. They are also compared with the theoretical calculations required for the simulation model.