由于开关磁阻电机(SRM)特殊的双凸极结构,在运行过程中会产生较大的转矩脉动,文中考虑开关角对SRM转矩脉动的影响,在转矩分配函数控制方法的基础之上,采用改进人工萤火虫算法对SRM开关角进行优化,设计一种基于改进萤火虫算法的转矩分配函数控制方法。该方法以铜耗与转矩脉动率作为优化目标,利用改进萤火虫算法的寻优能力,对开关角进行优化。仿真实验表明:该方法在工况1000 r/min下,相较于传统转矩分配函数控制策略,转矩脉动率减小了5.3%,在2000 r/min 下,减小了5.23%。

Due to the special double salient structure of switched reluctance motor (SRM), large torque pulsation will be generated during operation. Considering the influence of switching angle on SRM torque pulsation, based on the torque distribution function control method, improved glowworm swarm optimization is adopted to optimize the opening and closing angle of the SRM, and a torque distribution function control method based on the improved glowworm swarm optimization is designed. This method takes copper loss and torque ripple rate as optimization targets, and uses the optimization ability of the improved glowworm swarm optimization to optimize the switching angle. The simulation experiment shows that compared with the traditional torque distribution function control strategy, the torque ripple rate of this method is reduced by 5.3%?? under the working condition of 1000 r/min, and by 5.23% under 2000 r/min.

TM383.4