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负载动态下的级联系统大信号稳定性分析

, PP. 170-175

Keywords: 级联系统,大信号稳定性,负载动态,系统集成

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Abstract:

级联系统是电力电子变流器应用中最广泛的连接形式之一。在大规模或复杂电源系统中,级联稳定性(包括小信号稳定性和大信号稳定性)是系统可靠运行的关键因素。本文主要研究负载动态下的电力电子级联系统大信号稳定性,指出其明显区别于小信号稳定性的现象和特征。基于电压模式控制的Buck变流器的级联系统,通过小信号稳定性与大信号稳定性的对比分析,提出了一种大信号稳定性的分析方法,据此可以对负载动态下的级联系统大信号稳定性进行分析设计。仿真和实验结果验证了该分析方法的正确性。

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