1100 kV GIS设备主回路绝缘试验电气参量估算方法研究

为了实现1100 kV气体绝缘组合电器(GIS)主回路绝缘试验的分段、设备选择以及参数匹配的合理性,提出一种电气参量估算方法。首先,概述主回路绝缘试验方法,阐述试验原理和加压程序。然后,综合考虑试验频率和设备容量等限制条件,提出了有无并联补偿两种情况下变频串联谐振装置试验能力的估算方法。接着,提出了指定试验范围时特高压GIS主回路绝缘试验电气参量的估算方法。最后,以某特高压GIS主回路绝缘试验为例,估算变频串联谐振装置的试验能力,验证指定试验范围时电气参量估算方法的准确性。该估算方法能够准确地评估变频串联谐振装置的试验能力,实现指定试验范围时电气参量的准确估算,为特高压GIS主回路绝缘试验的分...

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Published in电力系统保护与控制 Vol. 46; no. 3; pp. 103 - 109
Main Author 任敬国;辜超;师伟;赵泽箐;李杰;王斌;王辉;郑建
Format Journal Article
LanguageChinese
Published 国网山东省电力公司电力科学研究院,山东 济南,250003%国网山东省电力公司检修公司,山东 济南,250000 01.02.2018
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Summary:为了实现1100 kV气体绝缘组合电器(GIS)主回路绝缘试验的分段、设备选择以及参数匹配的合理性,提出一种电气参量估算方法。首先,概述主回路绝缘试验方法,阐述试验原理和加压程序。然后,综合考虑试验频率和设备容量等限制条件,提出了有无并联补偿两种情况下变频串联谐振装置试验能力的估算方法。接着,提出了指定试验范围时特高压GIS主回路绝缘试验电气参量的估算方法。最后,以某特高压GIS主回路绝缘试验为例,估算变频串联谐振装置的试验能力,验证指定试验范围时电气参量估算方法的准确性。该估算方法能够准确地评估变频串联谐振装置的试验能力,实现指定试验范围时电气参量的准确估算,为特高压GIS主回路绝缘试验的分段和设备选择提供了可靠的参考。
Bibliography:REN Jingguo1, GU Chaol, SHI Weil, ZHAO Zejing2, LI Jie1, WANG Binl, WANG Hui1, ZHENG Jian1 (i, State Grid Shandong Electric Power Research Institute, Jinan 250003, China; 2. State Grid Shandong Electric Power Maintenance Company, Jinan 250000, China)
In order to realize the rationality of the segmentation, equipment selection and parameter matching of the main circuit insulation test of 1100 kV Gas Insulated Switchgear(GIS), this paper presents an electrical parameter estimation method. First, the test method of main circuit insulation is given and the test principle and voltage program are outlined. Then, considering the limitation of test frequency and equipment capacity, the methods of estimating test capacity of the variable-frequency series resonant device with or without parallel connection are presented. Next, it proposes a method of how to estimate electrical variables of the Extra-High-Voltage(EHV) GIS main circuit insulation test at specified range. Finally, an example of EHV GIS main circuit insulat
ISSN:1674-3415
DOI:10.7667/PSPC201787