| 配电网静止同步补偿器的不平衡分析与控制 |
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| 引用本文： | 王跃球,唐杰,尹进田.配电网静止同步补偿器的不平衡分析与控制[J].仪表技术,2010(12):5-8. |
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| 作者姓名： | 王跃球 唐杰 尹进田 |
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| 作者单位： | 邵阳学院电气工程系,湖南邵阳422400 |
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| 基金项目： | 湖南省教育厅科研项目（09C885） |
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| 摘 要： | 研究电网电压不平衡条件下D-STATCOM的运行特性和控制方法。通过运用开关函数法和序网络分析法分析了电网电压不平衡对D-STATCOM输出性能的影响和装置的过流现象。利用改进的开关函数调制法改善了D-STATCOM的输出性能,利用负序前馈控制有效抑制了装置的过流,既防止了D-STATCOM在电网电压不平衡时的过流问题,又改善了D-STATCOM逆变器的输出性能。仿真结果表明了文章的分析结论和提出的控制方法是正确的、有效的。
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| 关 键 词： | 电网电压 D-STATCOM 运行分析 控制策略 电能质量 |
Control and Operation Analysis of D-STATCOM under Unbalanced Voltage Condition |
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| WANG Yue-qiu,TANG Jie,YIN Jin-tian.Control and Operation Analysis of D-STATCOM under Unbalanced Voltage Condition[J].Instrumentation Technology,2010(12):5-8. |
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| Authors: | WANG Yue-qiu TANG Jie YIN Jin-tian |
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| Affiliation: | (Department of Electrical Engineering,Shaoyang University,Shaoyang 422400,China) |
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| Abstract: | The control methods and operation characteristics are researched in this paper.The effects of output voltage of D-STATCOM caused by unbalance grid voltage are analyzed through switching function and sequence network methods.The performance of output voltage of D-STATCOM is improved by modified switching function and the over current problem is resolved by negative sequence feed-forward control strategy.The correction and feasibility are proved by simulation results. |
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| Keywords: | power grid voltage D-STATCOM operation analysis control strategy power quality |
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