摘要：针对航空高压直流供电系统中270 V的供电要求，研究了以六相永磁同步发电机为主体的六相可控整流系统，采用一种基于SVPWM的最大四矢量的调制技术和电压外环-电流内环解耦的双闭环PI控制方式，对 子空间和 谐波子空间分别进行控制，在负载和转速发生突变的情况下保证输出的直流电压能迅速恢复到270 V并保持恒定。通过在Simulink上建立发电整流系统的仿真模型，得出的仿真结果证明了方法的可行性。
关键词：六相永磁同步发电机；270 V高压直流；可控整流；最大四矢量

Abstract:  To reach the requirements of 270 V in aviation highvoltage DC power supply system, a sixphase controllable rectifier system with sixphase permanent magnet synchronous generator was studied. The system adopted the modulation technique of the most senior vector based on SVPWM and the dual closedloop PI control mode of the voltage outer ringcurrent loop decoupling. The α-β subspace and x-y harmonic subspace were respectively controlled to ensure that the DC voltage of the output can be quickly restored to 270 V and remained constant when the load and rotational speed were mutated. The simulation model of a sixphase permanent magnet synchronous generator power generation system was established in Simulink, and the simulation results show that the method is feasible.
Key words: sixphase permanent magnet synchronous generator; 270 V high voltage DC; controlled rectifier; maximum four vector