考虑绕组分配的集成共模电压滤波器永磁同步电机特性分析

Due to the utilization of high-frequency switching devices, the high-frequency common-mode voltage (CMV) will be inevitable in the motor drive system. This CMV may lead to damage in the bearings, motor windings, and the induced common-mode leakage current may falsely trigger relay devices, and cause EMI propagation. Compared with common hardware solutions to reduce CMV, a compact design of a CMV filter with light weight and smaller size is a promising approach, especially, for the high-frequency and high-reliability drives of aviation applications. In this paper, the drive system performance with the integrated filter is investigated. Firstly, an analytical model considering motor inductance and CMV filter is developed. Based on this model, CMV reduction and the overall performance of the system with different segments assignment are analyzed. The effectiveness of the integrated filter with different windings segment allocations are validated through both simulation results and experimental data.