| 直流局部放电检测技术综述 |
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| 引用本文： | 康强,顾霄,徐阳,侯帅,傅明利,田野. 直流局部放电检测技术综述[J]. 南方电网技术, 2015, 9(10): 69-77 |
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| 作者姓名： | 康强 顾霄 徐阳 侯帅 傅明利 田野 |
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| 作者单位： | 电力设备电气绝缘国家重点实验室（西安交通大学），西安 710049,电力设备电气绝缘国家重点实验室（西安交通大学），西安 710049,电力设备电气绝缘国家重点实验室（西安交通大学），西安 710049,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 |
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| 摘 要： | 局部放电检测技术作为一种重要的绝缘性能评估手段，在交流电气设备的绝缘检测领域发挥了重要作用，而直流局部放电检测研究尚处于初级阶段。由于直流局部放电相比交流没有相角概念，交流下常用的局部放电分析手段无法直接套用于直流当中。综述了国内外直流局部放电检测的研究现状，介绍了直流局部放电的物理模型以及温度等因素对局部放电的影响机理，总结了目前国内外直流局部放电研究常用的分析方法，并对直流电缆局部放电测试的典型案例进行了分析。
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| 关 键 词： | 直流电压；局部放电；放电机理；检测分析方法 |
Review of Partial Discharge Detection Under DC Voltage |
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| KANG Qiang,GU Xiao,XU Yang,HOU Shuai,FU Mingli and TIAN Ye. Review of Partial Discharge Detection Under DC Voltage[J]. Southern Power System Technology, 2015, 9(10): 69-77 |
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| Authors: | KANG Qiang GU Xiao XU Yang HOU Shuai FU Mingli TIAN Ye |
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| Affiliation: | State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China,State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China,State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China,Electric Power Research Institute, CSG, Guangzhou 510080, China,Electric Power Research Institute, CSG, Guangzhou 510080, China and Electric Power Research Institute, CSG, Guangzhou 510080, China |
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| Abstract: | The partial discharge detection method has been widely used in evaluating the insulating property of AC electiric equipments. However, the research on partial discharge detection under DC voltage is still at the primary stage. Some useful analysis methods under AC voltage cannot be applied to the DC voltage situation because of lack of the phase angle conception. The research status domestic and abroad is summarized in this paper, the physical model and the influence of temperature and some other factors on partial discharge under DC voltage are introduced. Some common ways to analyze partial discharge under DC voltage are also summarized, and typical test cases of partial discharge of DC cables are analyzed. |
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| Keywords: | DC voltage partial discharge discharge mechanism detection and analysis method |
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