用于航空高压直流电源系统的笼型异步发电机控制策略的研究

 现代电力电子技术的发展使得笼型异步发电机能够适用于航空高压直流系统中。着重对笼型异步电机与电力电子变换器结合构成的发电系统进行了研究,说明了采用直接转矩控制策略可使这种发电系统具有很好的动态特性。介绍了异步发电机直接转矩控制的原理与实现方法,并给出了仿真与实验结果。

RESEARCH OF THE DTC CONTROL STRATEGY FOR INDUCTION GENERATOR USED IN AIRCRAFT HIGH VOLTAGE DC POWER SYSTEM

The aircraft high voltage DC (HVDC) power supply system having a starter/generator double function is getting a lot of attention recently. The cage type induction machine has more advantages such as simplicity, robustness, low cost and easy maintenance. The modern developed power electronic technology makes the cage type induction generator (CIG) suitable to be used in aircraft HVDC power systems. This paper presents a configuration of the HVDC generation system, which is composed of a CIG and a 3 phase power electronic converter, and makes researches on its control technology. Because the electromagnetic torque is a key physical parameter in the process of converting the mechanical energy into electrical energy in a generator, the direct torque control (DTC) strategy can be applied to the proposed system and makes it have fast dynamic performance. The principle of the DTC strategy for the proposed system is introduced. The elementary simulation and experiment results of this system are also presented.