PMSM变频调速系统的建模仿真与分析

Modeling Simulation and Analysis of Variable Voltage and Variable Frequency System of PMSM

在分析永磁同步电机(PMSM)数学模型的基础上,利用Matlab/Simulink设计出一种基于SVPWM的PMSM变频调速系统的改进仿真模型,可以有效监测和分析转速、转矩以及电压源逆变模块的电压和电流。在该模型基础上,分析了永磁同步电机在恒转速变转矩情况下的动态响应,并利用Matlab/Simulink的PMSM模块构建电路仿真模型对其结果进行验证。实验结果表明:该仿真模型具有减少计算时间和内存的优势,可为不同控制算法及拓扑结构下的永磁同步电机设计与开发提供便利。

This paper presented an advanced simulation model of the improved variable-frequency speed control system of permanent magnet synchronous motor（PMSM） based on the analysis of PMSM mathematical model with Matlab/Simulink. In the model, speed and torque as well as the voltages and currents of voltage source inverters components can be effectively monitored and analyzed. The dynamic response of PMSM drive has been analyzed for constant speed, varying torque operation. Also, the simulation results of the developed model have been validated with the circuit simulation using the PMSM block available in the Matlab/Simulink library. Therefore, it can be expected that the simulation model can be a design tool for the design and development of PMSM drives for different control algorithms and topological variations with reduced computation time and memory size.