GIS管道寄生电容的串联谐振升压方法研究  

Research and application of TV series resonant boost method based on GIS parasitic capacitance

作　　者：陈勇 朱梦梦 高海丽 朱全聪 林聪 翟少磊 CHEN Yong;ZHU Mengmeng;GAO Haili;ZHU Quancong;LIN Cong;ZHAI Shaolei(Yunnan power grid Co.Ltd.Chuxiong power supply bureau yaoan power supply Co.Ltd. Yunnan chuxiong, 675300;Yunnan power grid Co. Ltd electric power research institute,Kunming 650217, China;Key Laboratory of CSG for Electric Power Measurement,Kunming 650217, China;Yunnan Power Grid Co., Ltd. Menghai power supply Co., Ltd., Yunnan 666200, China)

机构地区：[1]云南电网有限责任公司姚安供电有限公司,云南楚雄675300 [2]云南电网有限责任公司电力科学研究院,昆明650217 [3]南方电网公司电能计量重点实验室,昆明650217 [4]云南电网有限责任公司勐海供电有限公司,云南勐海666200

出　　处：《云南电力技术》2018年第2期4-6,8,共4页Yunnan Electric Power

摘　　要：目前GIS套管中电磁式TV大多采用级联变压器升压方法,但是由于升压的设备体积大、笨重以及所需电源容量大等原因造成在现场使用困难;GIS套管中存在着寄生电容,如果利用传统方法升压需要的无功容量很大。提出一种基于GIS套管中寄生电容与可调电抗器串联谐振升压方法。该方法首先对GIS套管寄生的电容进行准确测量,然后根据所测电容量选择相匹配的可调电抗器,以达到串联工频谐振条件。本文所述试验方法在220 k V谷满变电站GIS套管中电磁式TV误差试验进行了验证,该方法利用GIS套管中寄生电容与可调电抗器实现升压,提高了现场可操作性。The GIS type electromagnetic TV mostly uses the cascade transformer method, but because of the pressure of large volume, heavy equipment and power supply capacity causes such use is very difficult in the field; and there is a parasitic capacitance on the GIS casing, using traditional methods need large capacity reactive power. Therefore, this paper presents a series resonant boost method based on GIS capacity and adjustable reactor. In this method, the parasitic capacitance of the GIS casing is measured accurately, and then the matched adjustable reactor is selected according to the measured capacitance. The test method described in this paper have been verified in 220 kV substation with Valley electromagnetic GIS type TV error test field test, and the adjustable reactor to realize step-up GIS casing capacitor by using this method, improve the on-site operation, provide a reference for field test in GIS TV.

关 键 词：GIS套管 串联谐振 电压互感器 并联电容 

分 类 号：TM74[电气工程—电力系统及自动化]