交直流同时供电同步发电机的建模

Modeling of Independent AC-DC Combined Synchronous Generator

独立交直流同时供电系统被广泛应用在车辆、舰船和飞机等需要同时提供交流电和直流电的场合。在这些电源体积重量受限制的场合， 交直流同时供电同步发电机有特殊的优势。为了提供高品质的电力， 电源的交流电压波形畸变率和直流电压纹波倍受关注， 但其精确计算比较困难。本文使用多回路方法建立了交直流同时供电独立系统的数学模型， 对磁场谐波的作用进行了比较精确的计算。文中对整流桥和自动励磁调节器（ＡＶＲ） 的模型也作了介绍。本文的结果与实验比较，

Independent AC-DC Combined Power Supply (IADCPS) is widely used in vehicles, vessels and aircrafts. Because of the limited space and weight, the IADCPS is a good solution under such circumstances. The AC line voltage distortion and DC voltage ripple are of special interests when the power quality is restricted by a rigid standard. But the accurate calculation of AC line voltage distortion and DC voltage ripple is rather difficult. In this paper, a mathematical model on the basis of multi-loop method is set up for a synchronous generator with two sets of windings on the stator to provide simultaneously the AC power and the rectified DC output. It is aimed at evaluating the effect of the air gap magnetic field harmonics with high accuracy. The equivalent representation of rectifier bridge and automatic voltage regulator (AVR) is also provided. The simulation result is compared with experimental waveform to verify the validity of the mathematical model.