| 多回直流紧急功率支援与电压稳定控制 |
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| 引用本文： | 龙锦壮,韩民晓,郭小江,刘崇茹,陈修宇.多回直流紧急功率支援与电压稳定控制[J].现代电力,2010,27(1):30-34. |
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| 作者姓名： | 龙锦壮 韩民晓 郭小江 刘崇茹 陈修宇 |
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| 作者单位： | 1. 华北电力大学电气与电子工程学院,北京,102206
2. 中国电力科学研究院,北京,100192 |
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| 摘 要： | 复杂交直流并联输电系统中,由线路故障导致的大规模功率转移可能引发系统波动,甚至导致系统崩溃。针对上述问题,提出当多回直流输电系统中的一回直流因故障停运时,可以在其他直流紧急功率支援的同时,通过电气距离较近的换流站的无功协调控制来提高系统的电压稳定性,并给出了相应的控制策略。在EMTDC/PSCAD仿真软件中搭建了三直一交混合输电系统模型并对其进行了仿真分析。仿真结果表明该控制策略对维持系统的频率稳定和电压稳定均有明显效果,对实际系统有一定的参考价值。
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| 关 键 词： | 高压直流 紧急闭锁 紧急功率支援 无功协调控制 电压稳定 |
Strategy of Emergency Power Support and Voltage Stability Control with HVDCs |
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| Long Jinzhuang,Han Minxiao,Guo Xiaojiang,Liu Chongru,Chen Xiuyu.Strategy of Emergency Power Support and Voltage Stability Control with HVDCs[J].Modern Electric Power,2010,27(1):30-34. |
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| Authors: | Long Jinzhuang Han Minxiao Guo Xiaojiang Liu Chongru Chen Xiuyu |
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| Affiliation: | Long Jinzhuang1,Han Minxiao1,Guo Xiaojiang2,Liu Chongru1,Chen Xiuyu1 (1.School of Electrical , Electronic Engineering,North China Electric Power University,Beijing 102206,China,2.China Eelectric Power Research Institute,Beijing 100192,China) |
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| Abstract: | A line fault of a complex power grid with multi-line DC and AC transmission in parallel can cause the mass shift of the active power,which may lead to the system fluctuation and grid disruption.A reasonable solution is given after the analysis of the relationship between the EDCPS and reactive power control.When a fault occurrs in one of the DC lines in parallel,the voltage stability is improved by the reactive power coordination control system of the nearly convertor station,as well as the emergency DC pow... |
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| Keywords: | HVDC emergency lock emergency DC power support reactive power cooperation control voltage stability |
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