[关键词]
[摘要]
开关磁阻电机(SRM)应用广泛,但由于电机内部磁场的非线性和相电流难以解析等问题,因此高精确度的建模和仿真较为困难。电机及驱动系统建模的研究直接影响到电机的优化设计、动静态性能分析、控制策略的评估等。为此,介绍了一种SRM及控制系统的建模方法,利用Flux有限元软件搭建的电机本体模型与MATLAB搭建的控制系统进行联合仿真。通过试验,测得电机在不同运行状态下的电流波形,并与仿真结果比较。结果表明:不同控制方式下的电流波形与仿真结果一致,是一种行之有效的建模手段。
[Key word]
[Abstract]
Switched reluctance motor (SRM) is widely used, but it is difficult to model and simulate SRMs with high precision because of the nonlinearity of the internal magnetic field and the difficult analysis of the phase current. The research of motor and drive system modeling directly affects the optimization design of motor, dynamic and static performance analysis, evaluation of control strategy, etc. A modeling method for SRM and its control system was introduced. It was a joint simulation, which used the finite element model of the motor built by Flux software and that of the control system built by MATLAB. Through the experiment, the current waveforms of the motor under different operating conditions were measured and compared with the simulation results. The results showed that the current waveforms in different control modes were consistent with the simulation results, which verified the effectiveness of the modeling method.
[中图分类号]
TM 352
[基金项目]
大学生创新训练计划项目(201710290075)