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On the basis of the Inverse System theory and Fuzzy Sliding Mode Control, this paper studies on Dynamic Decoupling Control of permanent magnet synchronous motor (PMSM), and a new sliding mode control strategy of fuzzy reasoning has been presented. According to the dynamic mathematical model of PMSM's speed regulation system, the existence of its inverse system is proven, and the design method of fuzzy...
In recent years, there has been much research in the development of ultra-precision control technology for automated machine tools to meet the increasingly stringent tolerance requirements. Minor disturbances in input torque, such as torque ripple and static friction that can normally be neglected, become apparent at micron-level scale. We propose a novel form of sliding mode control (SMC) to compensate...
In this paper, a sliding mode control based on reaching law control (RLC) is proposed for permanent magnet synchronous motors (PMSM) drive system. The PMSM is a typical multi-variable nonlinear system with strong coupling. It is sensitive to load disturbances and changes of interior parameters, so conventional PID control can't meet the application requirements where high performance is required....
The purpose of this study is to propose a new pole position estimation method of interior permanent magnet synchronous motors, IPMSMs. This new method uses both back EMF and saliency effects without high frequency component injection. Only standard current sensors, which are inherently used for fundamental current control, are used to estimate pole position. The proposed method enables to estimate...
In this study, direct torque control (DTC) of the permanent magnet synchronous motor has been analyzed, the stator flux and voltage space vectors are studied and a simulation of the direct torque control of a permanent magnet synchronous motor is realized. Afterwards, an additional LP filter is attached to the simulation setup in order to suppress harmonics on the current and voltage. Torque and flux,...
An online adaptive routine is presented for optimum direct torque control of Interior permanent magnet synchronous machines (IPMSM). Optimum control is provided by minimizing of a predefined particular cost function which causes proper selecting of the voltage vector to minimize electrical torque variations. In addition, the required parameters of cost function are estimated continuously. For this...
A new modulation and control strategy for a matrix converter induction motor drive is presented in this paper. A discrete model of the converter, motor and input filter is used to predict the behaviour of torque, flux and input power of the system. The switching state that optimizes the value of a quality function is selected. The predictive control method, referred to as predictive torque control...
A phase-difference angle (PDA) controlled pulse width-modulated (PWM) inverter instead of phase voltage modulation and/or frequency changing is proposed to control the speed, and position of a two-phase induction motor. Several characteristics of a two-phase induction motor driven by the PDA inverter are studied to verify the improvement of the motor performances. Also, speed, and position tracking...
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