| 动态电压恢复器控制策略的研究 |
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| 引用本文： | 蔡林海,荆平,武守远.动态电压恢复器控制策略的研究[J].电力建设,2007,28(8):0-0. |
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| 作者姓名： | 蔡林海 荆平 武守远 |
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| 作者单位： | 中国电力科学研究院,北京市,100085 |
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| 摘 要： | 针对动态电压恢复器(DVR)的电压补偿策略, 首先简述了跌落前电压补偿法、同相电压补偿法、最小能量补偿法等几种方法, 然后用相量图的形式详细地分析了上述几种补偿方法的原理, 并在此基础上提出了1 种确定动态电压恢复器最佳补偿点的方法。采用该控制方法的DVR 节约了DVR 直流侧存储的能量, 延长了电压补偿的时间, 同时避免了系统侧电压上升时引起能量倒灌导致直流侧过电压的威胁。最后用仿真试验的方式验证了该方法的有效性。
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| 关 键 词： | 动态电压恢复器 控制策略 电压跌落 补偿算法 |
| 文章编号： | 1000-7229（2007）08-0086-04 |
| 收稿时间： | 2010-01-25 |
| 修稿时间： | 2007-02-22 |
Control Strategy Study of Dynamic Voltage Restorer |
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| CAI Lin-hai,JING Ping,WU Shou-yuan.Control Strategy Study of Dynamic Voltage Restorer[J].Electric Power Construction,2007,28(8):0-0. |
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| Authors: | CAI Lin-hai JING Ping WU Shou-yuan |
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| Affiliation: | China Electric Power Research Institute, Beijing 100085,China |
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| Abstract: | Aiming to the voltage compensation strategies of dynamic voltage restorer(DVR),this paper first introduces methods including voltage compensation before drop,same phase voltage compensation,minimum energy compensation,etc.Then vector plot is used to analyze the mechanisms of these compensation methods.Method determining optimum DVR compensation point is proposed based on previous theories.DVRs using this control method not only conserve DC side stored energy,and prolong voltage compensation time,but also avoid DC side over-voltage threat caused by energy back flow due to system side voltage rise.Finally,the effectiveness of this method is validated through simulation test. |
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| Keywords: | dynamic voltage restorer control strategy voltage drop compensation algorithm |
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