基于交叉补偿型转矩分配函数的开关磁阻电机转矩脉动抑制系统设计∗

摘要

针对开关磁阻电机( SRM)在高速运行时转矩脉动抑制性能不佳、调速范围受限的问题，分析了SRM高速运行的转矩特性，以及电流补偿对转矩脉动抑制效果不佳的原因。设计了交叉补偿型转矩分配函数( TSF)，并采用直接转矩控制实现每一相的实际转矩对期望转矩的跟踪，使电机在中高速运行下仍能恒定输出合成转矩。仿真结果表明，基于交叉补偿型TSF法的SRM转矩控制系统具有较快的响应速度和较宽的调速范围。%The switched reluctance motor ( SRM) in the high-speed operation of the torque ripple suppression performance was poor, limited range of speed regulation, analyzed the operation of high-speed switched reluctance motor torque characteristics and current compensation of torque ripple suppression effects of poor, designed the cross compensation type torque distribution function ( TSF) , and the implementation of direct torque control for each phase of the actual torque to the desired torque tracking, the motor could output constant torque under high-speed operation. The simulation results showed that the torque control system of SRM based on cross compensation torque distribution function had faster response speed and wider speed range.