| 三相并网变流器并联系统中载波不一致的环流抑制方法 |
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| 引用本文： | 姜卫东,皋艳,王永生,丁星星,王金平,汪磊.三相并网变流器并联系统中载波不一致的环流抑制方法[J].电力系统自动化,2017,41(20):133-141. |
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| 作者姓名： | 姜卫东 皋艳 王永生 丁星星 王金平 汪磊 |
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| 作者单位： | 合肥工业大学电气与自动化工程学院, 安徽省合肥市 230009,合肥工业大学电气与自动化工程学院, 安徽省合肥市 230009; 合肥工业大学(宣城校区)信息工程系, 安徽省宣城市 242000,合肥工业大学电气与自动化工程学院, 安徽省合肥市 230009,合肥工业大学电气与自动化工程学院, 安徽省合肥市 230009,合肥工业大学电气与自动化工程学院, 安徽省合肥市 230009,合肥工业大学电气与自动化工程学院, 安徽省合肥市 230009 |
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| 摘 要： | 在分析环流产生原因的基础上,研究了由载波不同步所引起的高频环流问题,建立了一个载波周期内的环流的数学模型,提出了根据一个开关周期内高频环流的变化特性实现载波同步的方法,将高频环流的幅值限定在一定范围内。最后通过搭建变流器并联运行平台进行相关对比实验,验证了所提出的控制方法的可行性和有效性。
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| 关 键 词： | 环流 并网变流器 并联 载波同步 |
| 收稿时间： | 2016/10/31 0:00:00 |
| 修稿时间： | 2017/9/4 0:00:00 |
Reduction Control of Circulating Current Caused by Different Carriers in Parallel Three-phase Grid-connected Converters |
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| JIANG Weidong,GAO Yan,WANG Yongsheng,DING Xingxing,WANG Jinping and WANG Lei.Reduction Control of Circulating Current Caused by Different Carriers in Parallel Three-phase Grid-connected Converters[J].Automation of Electric Power Systems,2017,41(20):133-141. |
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| Authors: | JIANG Weidong GAO Yan WANG Yongsheng DING Xingxing WANG Jinping and WANG Lei |
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| Affiliation: | School of Electrical Engineering & Automation, Hefei University of Technology, Hefei 230009, China,School of Electrical Engineering & Automation, Hefei University of Technology, Hefei 230009, China; Department of Information Engineering, Hefei University of Technology(Xuancheng Campus), Xuancheng 242000, China,School of Electrical Engineering & Automation, Hefei University of Technology, Hefei 230009, China,School of Electrical Engineering & Automation, Hefei University of Technology, Hefei 230009, China,School of Electrical Engineering & Automation, Hefei University of Technology, Hefei 230009, China and School of Electrical Engineering & Automation, Hefei University of Technology, Hefei 230009, China |
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| Abstract: | The high frequency circulating current caused by asynchronous carriers is studied emphatically prior to an analysis of the circulating current. The mathematical model of high frequency circulating current in the switching cycle is proposed. The carrier synchronization is realized according to the high frequency circulating current characteristics in a switching cycle, with the high frequency circulating current amplitude limited within a definite range. Finally, the experimental setup of parallel converters is built in the laboratory to verify the feasibility and effectiveness of the method proposed. |
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| Keywords: | circulating current grid-connected converters parallel carrier synchronization |
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