摘要
针对传统开关磁阻电机(SRM)转子位置检测需要外接器件,增加了系统硬件成本和复杂性,降低了系统的可靠性等问题,对基于高频脉冲注入法无位置传感器控制方法进行了研究,根据脉冲注入相的不同,提出了两种基于电感分区法的非导通相注入高频脉冲估计转子位置的方法,总结了两种检测方法优缺点并结合运用;以12/8极4 KW三相开关磁阻电机为实验对象搭建了基于stm32的驱动控制系统,对高频注入法的转子位置估计的准确性进行了测试,并研究了分别使用两种检测方法时电机的运行状况。研究结果表明,应用该无位置传感器控制策略的开关磁阻电机控制系统能够实现对转子位置的准确估计,两种检测方法的结合可以实现SRM的无反转启动,并使启动后的电机运转稳定、可靠。
Aiming at the problem of the higher system hardware cost and complexity,the decrease of system reliability caused by external connection of rotor position estimation used in custom SRMs,the sensorless control based on high frequency pulse injection was studied. In consideration of the difference of the chosen injecting phase,two methods which can either estimate the position of the rotor by injecting the pulses into two different non-conducting phases were presented based on the phase inductance partition method. A drive control system based on stm32 was constructed using a 12 /8 pole 4 KW three-phase SRM as experiment object to verify the accuracy of rotate position estimate with high frequency injection. The operation states of the motor using two kinds of detection methods respectively are observed. The results indicate that SRM system using sensorless control strategy can estimate the rotate position precisely. Combination of the two methods is ont only able to avoid reverse starting of the SRM,as well as make the rotating of the SRM more stably and efficiently.
出处
《机电工程》
CAS
2016年第9期1115-1119,共5页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金资助项目(61175106)
关键词
开关磁阻电机
无位置传感器控制
高频脉冲法
电感分区法
switched reluctance motor（SRM）
sensorless control
high frequency pulse
phase inductance partition
