| 普侨直流入地电流对极址周边交流系统的影响 |
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| 引用本文： | 胡上茂,蔡汉生,贾磊,刘刚,李锐海,邹林,王晓毛. 普侨直流入地电流对极址周边交流系统的影响[J]. 南方电网技术, 2015, 9(7): 22-27 |
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| 作者姓名： | 胡上茂 蔡汉生 贾磊 刘刚 李锐海 邹林 王晓毛 |
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| 作者单位： | 南方电网科学研究院，广州510080,南方电网科学研究院，广州510080,南方电网科学研究院，广州510080,南方电网科学研究院，广州510080,南方电网科学研究院，广州510080,南方电网科学研究院，广州510080,广东电网有限责任公司电力科学研究院，广州510080 |
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| 摘 要： | 直流输电系统在系统调试或故障情况下会处于单极大地回路运行方式, 流入地中的直流电流会对交流系统的正常运行带来不利影响。为此在普侨直流带接地极运行系统调试期间，开展了入地电流对周边交流系统的影响试验。试验监测了入地电流对极址附近交流电网运行带来的噪声、谐波、振动等不利影响；通过对试验数据的分析，归纳得到了变压器中性点直流电流、谐波、噪声等与入地直流电流之间的关系。
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| 关 键 词： | 普侨直流；接地极；变压器；直流偏磁 |
Influence of DC Grounding Current of Puer-Qiaoxiang HVDC Project on AC Power System Surrounding Grounding Electrode Site |
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| HU Shangmao,CAI Hansheng,JIA Lei,LIU Gang,LI Ruihai,ZOU Lin and WANG Xiaomao. Influence of DC Grounding Current of Puer-Qiaoxiang HVDC Project on AC Power System Surrounding Grounding Electrode Site[J]. Southern Power System Technology, 2015, 9(7): 22-27 |
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| Authors: | HU Shangmao CAI Hansheng JIA Lei LIU Gang LI Ruihai ZOU Lin WANG Xiaomao |
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| Affiliation: | Electric Power Research Institute, CSG, Guangzhou 510080, China,Electric Power Research Institute, CSG, Guangzhou 510080, China,Electric Power Research Institute, CSG, Guangzhou 510080, China,Electric Power Research Institute, CSG, Guangzhou 510080, China,Electric Power Research Institute, CSG, Guangzhou 510080, China,Electric Power Research Institute, CSG, Guangzhou 510080, China and Electric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, China |
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| Abstract: | HVDC transmission system may be operated in ground return mode when the system is in commissioning or failure. The DC grounding curent occurred will bring negative influence to normal operation of AC power system. An experiment of these influence are carried out during the Puer-Qiaoxiang HVDC project system debugging with both grounding electrode.The influence such as audible noise, harmonic and oscillation of the transformer in AC power systems are monitored. Some useful data are acquired and the relationships between audible noise, harmonic, oscillation and DC grounding curent are obtained by analyzing these experimental data. |
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| Keywords: | Puer-Qiaoxiang HVDC project grounding electrode transformers DC bias |
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