双级矩阵变换器驱动IPMSM控制策略的研究

Study of Two-stage Matrix Converter Drives IPMSM Control Strategy

鉴于双级矩阵变换器和永磁同步电机结构紧凑性的优点,研究了基于双级矩阵变换器驱动内置式永磁同步电机(IPMSM)的调速系统。针对双级矩阵变换器线性电压传输比较低的不足,提出了双级矩阵变换器驱动IPMSM的自动弱磁控制方法,拓宽了系统的调速范围。为改善系统的调速性能,引入了不同转速段使用不同的PI参数和转速斜坡给定的控制方案,提高了系统的动静态性能。仿真和实验结果验证了该方案的可行性与有效性。

In view of the advantages of compact structure of two-stage matrix converter and permanent magnet synchronous motor, the speed control system of two- stage matrix converter driving interior permanent magnet syn- chronous motor（IPMSM） was researched, The automatic field-weakening control of two-stage matrix converter driving IPMSM was presented in order to make up the insufficient of the lower linearity voltage transfer ratio of two- stage matrix converter. The range of speed regulation of the system was widened. To improve the system performance of speed adjustment, different PI parameters in different speed section and speed slope giving were used,which improving the system dynamic and static performance. Simulation and experimental results confirm the feasibility and effectiveness of the proposed scheme.