| 链式动态电压恢复器的新型控制策略分析与设计 |
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| 引用本文： | 何杰,周雪松,陈山中,吕永红,吴斌,王四保.链式动态电压恢复器的新型控制策略分析与设计[J].高电压技术,2011,37(1):176-183. |
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| 作者姓名： | 何杰 周雪松 陈山中 吕永红 吴斌 王四保 |
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| 作者单位： | 1. 山西省电力公司长治供电分公司,长治,046011
2. 天津理工大学自动化学院,天津,300191 |
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| 基金项目： | 国家自然科学基金(50877053)~~ |
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| 摘 要： | 链式动态电压恢复器(DVR)作为一种有效的改善电压跌落问题的设备,近年来已经逐步应用于电力系统中,用以改善用户的电能质量.为此,将级联多电平技术与载波移相技术相结合,针对6 kV配电系统设计了5MVA无耦合变压器的11电平链式DVR,通过将级联多电平逆变器等效线性化,在传统单闭环控制系统基础上,在电压外环控制的同时,引...
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| 关 键 词： | 动态电压恢复器(DVR) 电压跌落 电能质量 载波移相 级联多电平 双闭环控制器 |
New Control Strategy Analysis of the Cascaded Dynamic Voltage Restorer |
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| HE Jie
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ZHOU Xue-song
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CHEN Shan-zhong
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LU Yong-hong
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WU-Bin
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WANG Si-bao.New Control Strategy Analysis of the Cascaded Dynamic Voltage Restorer[J].High Voltage Engineering,2011,37(1):176-183. |
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| Authors: | HE Jie ZHOU Xue-song CHEN Shan-zhong LU Yong-hong WU-Bin WANG Si-bao |
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| Affiliation: | HE Jie1,ZHOU Xue-song2,CHEN Shan-zhong1,Lü Yong-hong1,WU-Bin1,WANG Si-bao1(1.Changzhi Power Supply Company,Shanxi Electric Power Corporation,Changzhi 046011,China,2.School of Automation,Tianjin University of Technology,Tianjin 300191,China) |
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| Abstract: | Cascaded dynamic voltage restorer(DVR) which is an effective setup in modifying the power quality problems caused by voltage sags has been applied in the power system.Thereby,the carrier phase-shifted modulation technology was used in the cascaded multilvevel inverter.A 5 MVA uncoupled transformer 11-level cascaded DVR was researched for the 6 kV power system.The double loop control strategy was designed which employed a slow outer voltage loop and a fast inner current loop.Voltage sag was simulated at a ra... |
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| Keywords: | dynamic voltage restorer(DVR) voltage sag power quality carrier phase-shifted modulation cascade multilevel double cloop control strategy |
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