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中国电机工程学报 2009, 29(24) 6-12 DOI: ISSN: 0258-8013 CN: 11-2107/TM

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	本文关键词相关文章
	三电平
	中性点箝位
	脉宽调制整流器
	双单输入单输出模型
	a-b静止坐标系
	本文作者相关文章
	尹忠刚
	钟彦儒
	PubMed
	Article by Yun,Z.G
	Article by Zhong,P.R

三相两桥臂三电平脉宽调制整流器双单输入单输出模型及控制策略

尹忠刚，钟彦儒，刘静

西安理工大学自动化学院

摘要：系统分析三相两桥臂三电平中性点箝位脉宽调制(pulse width modulation，PWM)整流器的数学模型和工作模式，提出一种基于a-b 静止参考坐标系的双单输入单输出模型，在两相静止坐标系中将三相两桥臂三电平PWM整流器简化为2个与传统单相升压变换器类似的电路结构。根据空间矢量调制理论，分析各开关信号由两相静止坐标系到三相静止坐标系变换时的控制策略。该模型简化了对PWM整流器的分析，并且易于数字实现。仿真和实验结果验证了三相两桥臂三电平PWM整流器及其双单输入单输出控制策略的有效性。

关键词：三电平中性点箝位脉宽调制整流器双单输入单输出模型 a-b静止坐标系

Dual Single-input Single-output Model and Control Strategy of the Three-phase Two-arm Three-level Pulse Width Modulation Rectifier

YIN Zhong-gang, ZHONG Yan-ru, LIU Jing

Automation College of Xi’an University of Technology

Abstract: The mathematical model and working modes of the three-phase two-arm three-level neutral-point-clamped (NPC) pulse width modulation (PWM) rectifier were analyzed, and a novel dual single-input single-output (SISO) model based on a-b stationary reference frame was proposed, in which the a-axis and b-axis equivalent model are shown to be similar to two traditional single-phase boost converters. Switching strategies were analyzed to determine switching control signals in a switching period based on space vector modulation. The model makes it much easier to analyze a complex three-phase three-level PWM rectifier and to implement by the digital signal processor (DSP). The simulation and experimental results verify the validity of the three-phase two-arm three-level PWM rectifier and the dual SISO control strategy.

Keywords: three level neutral-point-clamped pulse width modulation rectifier dual single-input single-output model a-b stationary frame

收稿日期 2008-09-18 修回日期 2008-11-03 网络版发布日期 2009-08-31

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通讯作者: 尹忠刚

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