Papers by Keyword: Permanent Magnet Synchronous Motor (PMSM)

Abstract: Aiming at the superfluous force existing in the electric load simulator which can influence the load precision, the text researches the method to improve the control performance of the load system. The work principle of the electric load simulator was introduced, and building the control model of the load system based on, the whole electric load simulator control model was built. It designs feed forward compensation control algorithm. The simulation results proved that the method can solve the interference problem caused by superfluous force in theoretically.

Abstract: This paper studies a load simulation system based on permanent magnet synchronous motor. Vector control principle of the loading motors vector control technology is analyzed, and using the strategy that direct-axis component of the stator current is zero, the mathematical model of load control is established. To analysis the control characteristics and lay a foundation for the control algorithm of the system, the control channel is divided into two channels, namely the forward load channel and disturbance channel, whose characteristics are analyzed, too. The torsional stiffness of the connecting link has an effect on the dynamics characteristics of the system. Therefore, the system dynamic characteristics under different torsional stiffness of forward load channel and disturbance channel are analyzed in the paper.

Abstract: The neutral point clamped (NPC) pulse width modulation (PWM) inverter has been put into practical use for large capacity AC motor drives because of its less distorted output, lower costs and better control performance. This paper suggests a way to improve the performance of permanent magnet synchronous motor (PMSM) by using the three-level NPC inverter. Firstly, the three-level NPC inverter space voltage vector pulse width modulation (SVPWM) technique is analyzed in detail. Then, the NPC inverter is applied in PMSM vector control. Finally, a simulation experiment of the proposed control algorithm is carried out. The simulation results show that the proposed method can effectively suppress the torque ripple and improve driving performance for the PMSM drive.

Abstract: This paper focus on a surface-mounted low-speed high-torque permanent magnet synchronous motor (PMSM) for progressive cavity pump wells. To minimize torque ripple, several methods is used such as proper pole-arc coefficient and fractional-slot windings. In the motor design, a non-linear finite element analysis (FEA) method is conducted to compute the performance of the motor. Through the simulation and experiment, the result shows that the design of low-speed high-torque PMSM is valid and presents a good performance.

Abstract: Wind power is an important source of green power. The equipment, generators, and power systems are all determining factors of equipment efficiency. High efficiency generators of medium and small size are widely used in daily life. Cogging torque is a major issue affecting generator efficiency. This paper proposes an optimized design for permanent-magnet synchronous generators using arc-shaped magnets to reduce cogging torque. The proposed approach improves performance significantly.

Abstract: According to the all-electric injection molding machine control system requirements, the vector control applied to the permanent magnet synchronous motor control, we propose a fully electric injection molding machine control system design, through analysis and research that can further improve the program precise all-electric injection molding machine control, its stability, high reliability, to better meet the all-electric injection molding machine of precision and stability requirements.

Abstract: This article starting from the real engineering, have a deep search on permanent magnet synchronous motor servo system, analyzed the main research focus on permanent magnet synchronous motor control, focused on the mathematical model of permanent magnet synchronous motor, made some meaningful results. Basing on modular design principles, this article have a deep application research on design of permanent magnet synchronous motor DSP conducted, proposed DPS design, has a detailed analysis of permanent magnet synchronous motor servo system software design.

Abstract: Space Vector Pulse Width Modulation (SVPWM) technique is one of the best method of PWM variable frequency drive and make the AC motor achieving the performance as good as DC motor. Permanent Magnet Synchronous Motor (PMSM) has many advantages of small volume, steady operation, high energy efficiency, large output torque, etc. To solve the problems of auto environment and energy sources, study on Pure Electric Vehicles (PEV) driven by PMSM based on SVPWM is an important research direction and has the practical value. On the basis of analyzing the basic models of SVPWM, PMSM and PEV, simulation model of PMSM Control System for PEV can be constructed. The results of the simulation show that the control system has super performance and meet the request of system.

Abstract: To the speed-regulation system of permanent magnet synchronous motor (PMSM), this paper presents a active disturbances rejection controller (ADRC) based on the adaptive theory. First, the inertia information will be obtained by identification. Then, ADRC is designed by combining an adaptive algorithm. The controller can realize the adaptive parameters adjustment according to the inertia information, which is called adaptive ADRC. Simulation results have confirmed this control strategy can effectively improve the stability and robustness of PMSM.

Abstract: This paper treats the globally exponential synchronization problem of the permanent magnet synchronous motor chaotic system. Based on Lyapunov stability theory and some inequalities techniques, one novel control approach, namely linear feedback control with one state is proposed to realize the globally exponential synchronization of two permanent magnet synchronous motor chaotic systems. In this case, some sufficient conditions for the globally exponential synchronization of two chaotic systems are obtained analytically. The controllers here designed have simple structure and less conservation. The numerical simulation results show the effectiveness of the method.