关键词: 航空永磁同步电机发电系统, 电压反馈弱磁, 比例谐振控制, 谐波补偿, 宽转速范围

Abstract:

In aviation the permanent magnet synchronous machine (PMSM) power generation system, in order to keep the DC bus voltage 270 V constant and the harmonic content in accordance with the national military standard requirements throughout the entire speed range, a PWM-rectifier based on voltage feedback and a proportional resonant (PR) regulator were combined to increase the negative direction. The d-axis current reduces the back electromotive force of the motor, and the PR controller can perform no-static adjustment of the AC signal in a stationary coordinate system, eliminating the decoupling term, making harmonic compensation easy, and improving the robustness of the aviation start/power generation system and aviation power quality. The simulation results show that the control system can effectively realize the high dynamic response of the wide-speed range of voltage regulation and sudden rejection load. The output power supply has high quality and meets the requirements of the country military standard for aviation power supply.

Key words: aviation permanent magnet synchronous machine (PMSM)power generation system, voltage feedback weak magnetic, proportional resonance (PR) control, harmonic compensation, wide speed range