基于航空交流电源系统的单位功率因数整流研究

Research on the unity-power factor rectification based on the aircraft ac system

从航空交流电源系统中大多负载对恒频供电的需求出发，分析了九开关变换器具有在航空电源系统中应用的广阔前景，然后以九开关变换器作为研究对象进行了单位功率因数整流的仿真研究。通过双闭环解耦，实现对输入变换器的有功功率与无功功率的独立控制，并保证直流侧电压的稳定。通过Matlab／Simulink仿真得出，所用采用的控制方法达到了航空交流电源系统的供电需求。

It was started from the most loads＇ requirement system, and it was analysed that the nine-switch converter has the simulation of unity-power factor rectification was studied of constant frequency power supplying in the aircraft ac a broad prospect in aircraft power supply system, then with the nine-switch converter being the investigated object. Through double closed- loop decoupling, the independent control of active power and reactive power was realized, and the stability of the dc side voltage was ensured. Through Matlab/Simulink simulation, the control method of the aircraft ac system reached the demand for the power supply system.