开关磁阻电机中霍尔位置传感器细分电路

摘要

Subdivision circuit of hall position sensor used on switched reluctance motor(SRM) was introduced. The machining precision of magnetic ring is the main reason affecting the accuracy of position detection, especially for muti-rotor pole SRM, the division number of magnetic ring of position sensor is in proportion to the rotor pole; the more division number, the more cost and the worse machining precision. The subdivision circuit introduced can reduce the division number of magnetic ring, and reduce manufacturing costs, and improve accuracy of position detection.%介绍了一种开关磁阻电机用的霍尔位置传感器细分电路.霍尔位置传感器磁环的加工精度是影响位置检测精度的主要原因,尤其是多转子极数的开关磁阻电机,霍尔位置传感器的磁环中磁块份数较多,这样磁环的制造成本大大增加,精度也难以保证.提出的细分电路,能减少磁环中磁块份数,降低制造成本,提高位置检测精度.