Torque Control Research Papers - Academia.edu (original) (raw)

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- Iron, Control Strategy, Power Factor, Torque Control

... Research (CECSTR) PO Box 4078,Dept. of Electrical Engineering, Prairie View,TX, 77446 moghheli~,ee.tamu.edu KN Toosi University of Technology, Mechanical Engineering Department, Tehran, Iran, kazemi@kntu.ac:ir ** *** ...

- by Reza Kazemi
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- Engineering, Intelligent Control, Adaptive Control, Motion control

The authors examine some issues in the transfer function modeling of a single flexible link. Using the assumed-modes approach, it is possible to find the transfer function between the torque input and the net tip deflection. It is shown that when the number of modes is increased for more accurate modeling, the relative degree of the transfer function becomes ill-defined.

- by David Wang
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- Mechanical Engineering, Controller Design, Control system, Robotic
- by Carlos Moron
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- Engineering, Physical sciences, Torque, SWITCHED RELUCTANCE MOTOR
- by M. Aripin
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- Vehicle Dynamics, Tracking, Sliding mode control, Mathematical Model
- by Mehrdad Ehsani
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- Engineering, Optimal Control, Neural Network, Industry
- by Davood A. Khaburi
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- Induction Motor, Cost Function, Predictive Control, Torque Control
- by Markus Grebenstein and +1
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- Mechanical Engineering, Electrical And Electronic Engineering, Torque Control
- by Zhengyu Lin
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- Engineering, Machine Learning, Gastroenterology, Adaptive Control
- by Hossein Abootorabi Zarchi
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- Engineering, Adaptive Control, Lyapunov Stability Theory, Feedback
- by mohammad rahman
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- Engineering, Parameter estimation, Electroanalytical Chemistry, Oscillations
- by Ali Ahmed
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- Torque Control
- by P. Dario
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- Mechanical Engineering, Low Frequency, Manufacturing Engineering, Brushless DC Motor

The design and experimental control of an unmanned Tilt-Rotor aerial vehicle operating in Bi-Rotor mode is presented in this article. Tilt-Rotor UAVs exhibit important flight characteristics due to their ability to fly both like a rotorcraft (in Bi-Rotor Mode) and like a fixed-wing aerial system. The ability of having a dual flight envelope makes ideal for complex missions where both the speed and flight endurance of a fixed-wing design and the hovering, aggressive maneuvering and vertical take-off/landing capabilities of a helicopter ...

- by Anthony Tzes
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- Controller Design, Experimental Study, Tiltrotor, Mathematical Model
- by Riender Happee and +1
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- Mechanical Engineering, Applied Mathematics, Vehicle Dynamics, Coordinated Control of FACTS Devices
- by Rodrigo Diaz
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- Pid, motor DC, Torque Control

In this work we derive steady-state cornering conditions for a single-track vehicle model without restricting the operation of the tires to their linear region (i.e. allowing the vehicle to drift). For each steady-state equilibrium we calculate the corresponding tire friction forces at the front and rear tires , as well as the required front steering angle and front and rear

- by Emilio Frazzoli and +1
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- Situation awareness, Nonlinear Programming, Vehicle Dynamics, Hybrid Vehicle
- by mohamed BOUSSAK
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- Engineering, Earth Sciences, Digital Control, Korea
- by Youcef Mezouar and +1
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- Mechanical Engineering, Robotics, Dynamic control, Robotic

This paper presents direct torque control (DTC) methodology for a four-switch three-phase (FSTP) inverter-fed permanent magnet brushless ac (PM BLAC) machine, with reference to a conventional six-switch three-phase (SSTP) inverter. It has been found that when derived from conventional voltage model flux estimation scheme, the predicted stator flux imbalance may be caused by unbalanced inverter voltage drop in the FSTP inverter, in which one phase winding is directly connected to dc-link midpoint. While this imbalanced problem does not adversely affect the performance of current-model-based DTC, it causes significantly nonsinusoidal current waveforms and considerably unbalanced current magnitudes in voltage-model-based DTC. A new compensation scheme taking into account the different forward voltage-drop values in the switching device and the freewheeling diode is proposed for the voltage-model-based DTC to correct for stator flux imbalance via the addition of corrective voltages to flux equations. The proposed scheme has significantly improved the shape of current waveforms with satisfactory balanced magnitudes, total harmonic distortion, and torque ripple factor, as verified by both simulation and experimental results. It has been shown that it is possible for an FSTP inverter to provide similar performance to an SSTP inverter when driving a PM BLAC machine.

- by N.J.Ranjith kumar
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- Soft Computing, Electric Motor, Brushless DC Motor, Optical Filters
- by Markus Grebenstein and +1
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- Robotics, Nonlinear Control, Impedance Control, Compliant Mechanism
- by Petar Matic
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- Vector control, Dynamic Response, Induction Motor, Gain Scheduling
- by yvan bonnassieux and +1
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- Engineering, Digital Control, Nonlinear Control, Digital Signal Processors
- by Ming Kuang
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- Vehicle Dynamics, Adaptive Control, Stability, Acc
- by David How
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- Engineering, Optimal Control, Fault Tolerance, Computer Simulation
- by Gerard-Andre Capolino
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- Engineering, Motion control, Induction machine, Fault Tolerant

This paper proposes a new approach to direct torque control (DTC) method for brushless direct current (BLDC) motor drives. In conventional DTC method, two main reference parameters are used as: flux and torque. In this paper, the new approach has been proposed to improve the BLDC motor dynamic performance. A main difference from the conventional method of it was that only one reference parameter (speed) was used to control the BLDC motor and the second control parameter (flux) was obtained from speed error through the proposed control algorithm. Thus, the DTC performance has been especially improved on systems which need variable speed and torque during operation, like electric vehicles. The dynamic models of the BLDC and the DTC method have been created on Matlab/Simulink. The proposed method has been confirmed and verified by the dynamic simulations on different working conditions.

- by Kamel Srairi and +2
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- Modeling and Simulation, Kalman Filter, System Analysis, Comparative Analysis
- by Pablo Correa
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- Engineering, Topology, Sampling methods, Steady state
- by Chong Chu
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- Engineering, Mathematical Sciences, Tool wear, Advanced manufacturing technology

The use of a voltage source power converter topology for medium voltage drive products allows to realize a utility interface compatible with IEEE 519-1992 by means of a series 12-pulse (or optionally a 24-pulse) diode rectifier without any harmonic filters or power factor correction equipment. On the motor side, the three-level voltage source inverter, also known as the neutral-point clamped

- by Peter Steimer
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- Power Converter, Power Factor Correction, Voltage Source Inverter, Medium Voltage

In this paper, the torque tracking control problem for a class of series elastic actuators (SEAs) in the presence of unknown payload parameters and external disturbances is investigated. The uncertainties/disturbances rejection problem for SEAs is addressed from the view of a continuous nonlinear robust control development. Specifically, based on the analysis of a nonlinear SEA, the generic dynamics of SEA systems is described and a novel nonlinear control framework for SEAs is constructed. Then a RISE (robust integral of the sign of the error)-based second-order filter is introduced to synthesize the control law. Moreover, the control performance is theoretically ensured by Lyapunov analysis. Finally, some experimental results are included to demonstrate the superior performance of the proposed control method, in terms of transient response and robustness.

- by Tom Nestli
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- GAS TURBINE, Control system, High Voltage, Electric Drive
- by Fazal Syed
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- Engineering, Technology, Power Electronics, Vibration Control
- by Males Tomlinson and +1
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- Engineering, Control Theory, Quality Control, Dynamic control

... maneuver as in a standard motorcycle, with no need of any actuator. The other merit concerns the vehicle construc-tion: its front frame is as simple and in-expensive as in a standard motorcycle. ... Such a panel contains a few... more

- by Markus Grebenstein and +1
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- Mechanical Engineering, Robotic, Space Robotics, International space station

The paper deals with analysis of dynamic behavior of a feedback flux weakening control of PMSM traction drive for light vehicles. The PMSM flux weakening is very important for traction drives. Two torque control structures were analyzed - pure feedback control and feedback control with prediction of the field producing current component. The principles, control structures, simulation and experimental results are given.

- by haddoun abdelhakim
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- Engineering, Technology, Vehicle Dynamics, Electric Propulsion

—Different methods have been proposed for torque ripple control in Switch Reluctance motor (SRM). In order to overcome this problem, some of the methods are based on changing in the structure and the geometry of the motor and others are performed by using control methods. This paper describes the structure and principles of operation in SRM and then introduces some controlling methods for these motors. Some methods are studied for SRM toque ripple reduction and after that an optimum methods is suggested by authors according to the results which have been obtained in laboratory.

- by chaithra N
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- Electrical Engineering, Control Systems Engineering, Control Systems, SRM
- by Sergei Peresada
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- Applied Mathematics, Stability, Feedback, Power Control
- by Oscar Andrés
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- Industrial Robots, Robot Control, Predictive Functional Control, Control Strategy
- by Ali Ahmed
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- Torque Control

—In partial load torque control for variable speed wind turbine generators(VSWTG) rotational speed, which will be feedback signal, is very important parameter. The mathematical model of wind turbine and control regulation for maximizing energy conversion yield has been introduced in this paper. The control system stability and dynamic response are analyzed when using the wind turbine rotor side rotational speed (RSRS) and the generator side rotational speed(GSRS) as feedback signal in torque control respectively ,and the effect the drive train damping and wind speed on system stability are investigated simultaneously. Analysis-and simulation results show that, when using RSRS the stability of wind turbine control system depends on the damping of drive train and the coming wind speed strongly, while the system will be always stable in partial load torque control when using GSRS although wind speed and damping have some effect on the wind turbine system stability. Two real wind turbines of 1.5MW double fed asynchronous generator(DFIAG) are simultaneouly tested with different feedback rotational speed respectively. Test results show that, when using RSRS the generator rotational speed will fluctuate strongly with severe torsion vibrations in higher wind speed, while the wind turbine operate normally for GSRS feedback, which make a very good agreement with analysis-and simulation results.

- by Farah Shabila
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- Control Systems Engineering, Renewable Energy, Vibration, Control Systems