基于6/8开关磁链永磁电机不同约束条件下的优化设计比较

摘要

The comparative study of optimized switched flux permanent magnet machine (SFPMM) with different load conditions and constrains was presented.By taken a 6/8 SFPMM as example,the sensitivity of parameters was investigated to decide the optimized sequence.With the different constrains,such as light-load、rated、over-load conditions,the 6/8 SFPMM was optimized at fixed copper loss、fixed current、fixed current density.By comparing the torque density,PM volume,losses and efficiency of the optimized designs,the effective constraint to optimize the SFPMM will be obtained.%比较研究了开关磁链永磁电机(SFPMM)在不同约束条件下的优化设计.以6/8 SFPMM为例,通过对电机参数的敏感度进行分析,将电机的参数进行逐一优化.比较了其在固定定子铜耗、固定电流、固定电流密度等不同约束条件下以及不同负载约束条件下的优化结果.通过对优化结果的转矩性能、永磁体体积、损耗和运行效率等进行评价和对比,得出该类电机优化设计中约束条件的选择方法.