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一种新型斩波级联中压整流器

, PP. 173-180

Keywords: 中压,级联整流器,斩波,空间矩阵,能控性

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Abstract:

针对传统的四象限全控整流器输出电压普遍不高,提出了一种新型的级联型中压全控整流器,通过全控整流桥和斩波控制臂组合形成新的整流功率单元,通过功率单元的级联输出实现较高的直流电压输出,本文分析了该种中压整流器的电路拓扑,对新型整流功率单元的运行方式进行研究,推导了该电路拓扑的数学模型和空间矩阵方程,结合电路工作状态进行了数学空间矩阵方程的能控性分析。研究了全控整流器的控制策略,分析了该整流器的单位功率因数整流和低谐波含量特性,并进行了仿真和试验验证。结果表明整流器电路拓扑可以有效的实现对直流侧电压、电流的控制与输出。

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