| 直流输电系统接地极电流对交流电网的影响分析 |
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| 引用本文： | 王明新,张强. 直流输电系统接地极电流对交流电网的影响分析[J]. 电网技术, 2005, 29(3): 9-14 |
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| 作者姓名： | 王明新 张强 |
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| 作者单位： | 中国电力科学研究院,北京市,海淀区,100085;国家电网公司,北京市,西城区,100031 |
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| 摘 要： | 基于三-广直流输电系统(三峡-广东高压直流输电工程)的调试结果,分析了有多个直流系统落点的交流电网中直流接地极电流对交流电网影响的基本规律.提出为减小直流接地极电流对交流电网的影响应合理安排直流系统的运行方式;建立可靠的电流通道,减小接地极的接地电阻或建立专门线路;合理安排电网中交流变压器的接地点和接地方式.文章介绍了实施上述措施需进行的具体研究工作.
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| 关 键 词： | 直流输电系统 接地 接地极电流 交流系统 双极直流系统 |
| 文章编号： | 1000-3673(2005)03-0009-06 |
ANALYSIS ON INFLUENCE OF GROUND ELECTRODE CURRENT IN HVDC ON AC POWER NETWORK |
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| WANG Ming-xin,ZHANG Qiang. ANALYSIS ON INFLUENCE OF GROUND ELECTRODE CURRENT IN HVDC ON AC POWER NETWORK[J]. Power System Technology, 2005, 29(3): 9-14 |
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| Authors: | WANG Ming-xin ZHANG Qiang |
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| Affiliation: | WANG Ming-xin1,ZHANG Qiang2 |
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| Abstract: | Based on the commissioning test results of the HVDC from Three Gorges hydro power station to Guangdong power network, the basic law of the influence of DC ground electrode current on AC power network, in which multi-HVDC receiving ends exist, is analyzed. To reduce this influence, it is necessary to rationally arrange the operating mode of the HVDC, build reliable current channel, reduce the grounding resistance of ground electrode, rationally configure the grounding points and grounding modes of AC transformers in AC power network, etc. The concrete study items of these measures to be performed are presented. |
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| Keywords: | HVDC Grounding Current of ground electrode AC power system Bipolar DC power system |
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