| 静止无功发生器补偿电网电压不平衡的控制方法研究 |
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| 引用本文： | 李旷,赵国鹏,刘进军,王兆安.静止无功发生器补偿电网电压不平衡的控制方法研究[J].电源学报,2006,4(1):37-40. |
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| 作者姓名： | 李旷 赵国鹏 刘进军 王兆安 |
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| 作者单位： | 西安交通大学电气工程学院，陕西 西安 710049;西安交通大学电气工程学院，陕西 西安 710049;西安交通大学电气工程学院，陕西 西安 710049;西安交通大学电气工程学院，陕西 西安 710049 |
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| 摘 要： | 本文提出了一种用静止无功发生器抑制公共连接点(Point of Common Coupling－PCC)处不平衡电压的控制方法。本文将静止无功发生器控制为受负载端负序电压控制的电流源，通过此补偿电流的作用来降低PCC处电压的不平衡度。文章还分析了其补偿性能与各个参数的相互关系，并介绍了PCC处负序电压的适时检测方法。仿真和实验结果表明，该方法可以有效地补偿电源或负载引起的电压不平衡问题，从而满足电力负荷对电网电压质量的要求。
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| 关 键 词： | 静止无功发生器 电压不平衡 公共连接点 电压控制电流源 |
| 收稿时间： | 2005/11/25 0:00:00 |
Control strategy for static var generator in mitigating system voltage unbalance |
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| Li Kuang,Zhao Guo Peng,Liu JinJun and Wang Zhaoan.Control strategy for static var generator in mitigating system voltage unbalance[J].Journal of power supply,2006,4(1):37-40. |
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| Authors: | Li Kuang Zhao Guo Peng Liu JinJun and Wang Zhaoan |
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| Abstract: | In this paper, a direct-current-controlled Static Var Generator (SVG) is proposed to solve the voltage unbalance issue at the Point of Common Coupling (PCC). The SVG is operated as a current source controlled by the negative sequence voltage at the PCC. The relationship between all the parameters and the compensating characteristics is analyzed in detail. And the negative sequence voltage decomposition method is then introduced. Simulation and experiment results verify the satisfactory performance of the SVG in compensating voltage unbalance with the proposed control strategy. |
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| Keywords: | static var generator(SVG) voltage unbalance point of common coupling(PCC) voltage controlled current source(VCCS) |
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