新型通用变流器的理论及应用

本文介绍一种新型通用变流器,其输入输出波形均是正弦的;在电感负载时输入功率因数角可调(可以为0甚至超前);调频范围几乎不受限制。本文从开关模型入手,导出了具有实用价值的在正弦型多输入、多输出条件下通用变流器的调制函数矩阵E(t)]的一般形式,并给出了E(t)]的一些重要性质。本文对通用变流器在AC—DC,DC—AC,AC—AC 三种状态下进行了试验研究,其结果表明特性良好,与理论分析相符。

THEORY AND APPLICATION OF A NEW GENERALIZED CONVERTER

This papar deals with a new generalized converter whose input and output waveforms are sinusoidal.The input factor angle can be controlled to be equal to or lest than zero degree for the inductive load and the range of frequency change is hardly limited. Under the condition of sinusoidal multi-input and multi-output variables, this papar introduces,from the power switch morel point of view,a general form of the Modulation Function Matrix(MFM)E(t)]of Generalized Converter(GC)which has a practical value.Important features ofE(t)]are given. Finally,this generalized converter has been tested under the three states: AC-DO,DC-AC,AC-AC,The results show that the characteristics of the converter are good and in complete agreement with theoretic analyses.