摘要：开关磁阻电机（SRM）的无位置传感器控制在电机不同转速区间需要采用不同的控制算法。针对这一问题，提出了一种基于转速双阀值滞环算法切换策略的开关磁阻电机全速度范围无位置控制方案。电机由低速过渡到高速时由阀值ωm控制算法切换，由高速过渡到低速时由阀值ωn控制算法切换，两阀值之间有一定的滞环宽度。仿真与实验结果表明，该策略能够实现开关磁阻电机高低速无位置控制算法间的可靠切换。
关键词：开关磁阻电机；无位置传感器；全速度；双阀值
Abstract: The position sensorless control of SRM need different algorithms according to rotate speed range. To this question, a novel sensorless control scheme over entire speed range of SRM was proposed, it was based on speed double threshold hysteresis algorithm switching strategy. Algorithm switching worked when speed up to threshold ωm, or down to threshold ωn, it has hysteresis wideth between them. Simulation and experiment results showed that the low and high speed control algorithms clold transform reliably through this proposed strategy.
Key words: switched reluctance motor; position sensorless; entire speed; dualthreshold