基于Atmega16L的无刷同步电机转子绕组接地检测系统

Grounding Detection System Based on Atmega16L for Rotor Winding of Brushless Synchronous Electrical Machine

针对无刷同步电机的特殊结构,文献[1]提出了一种无刷同步电机转子绕组接地检测的新方法,即有源电阻电桥法。该方法具有无检测死区、接地检测灵敏度不受励磁电压的影响等优点。在此针对该方法进行了接地检测系统详细的软硬件设计,仿真和实验验证了该系统设计的正确性。另外,还考虑了电网突然发生短路时对接地监测的影响,仿真结果证明接地监测不会发生误动作,说明该接地检测系统具有较高的可靠性。

Aiming at the special structure of blushless synchronous electrical machine,a new method of grounding detection was presented in the literature [1],namely,electrical bridge of resistance with electrical source.Its advantages are as follows,without dead area of detection,and insensible to excitation voltage,etc.Software and hardware of grounding detection system was designed,and its validity is validated by simulation and experiment.In addition,no misoperation during bursting with short circuit of grid is proved by simulation results,which shows its high reliability.