摘要
独立稳定运行的电力电子装置前后级联运行时,组成的新系统极有可能处于不稳定工作状态,或者不能得到满意的功率转换能效。本文通过对级联系统阻抗比判据的研究,针对前后级不同的阻抗关系,分析级联系统的各类稳定情况,并用仿真实验验证了本文阻抗比判据结果的有效性。
When the stable power electronics subsystems cascade in one system, both the new system and subsystems always become unstable or poor power conversion efficiency. In this paper, we have made a research of the relationship between the front- to-rear subsystems＇ impedance ratio and the cascade system＇s stability. Finally we put forward the criterion of power electronics cascade system＇s stability. The matlab simulation results verify that the criterion is correct and effective.
出处
《电子技术应用》
北大核心
2009年第8期79-81,84,共4页
Application of Electronic Technique
关键词
电力电子
级联系统
阻抗比
判据
稳定性
power electronics
cascade system
impedance ratio
criterion
stability
