[1]郝耀华,曹 斌,徐星琛,等.35 kV中性点经消弧线圈接地对铁磁谐振过电压影响的研究[J].电瓷避雷器,2020,(02):93-98.[doi:10.16188/j.isa.1003-8337.2020.02.015]
 HAO Yaohua,CAO Bin,XU Xingchen,et al.Study of the Influence of 35 kV Neutral Point Grounding Through Arc Suppression Coil on Ferroresonance Overvoltage[J].,2020,(02):93-98.[doi:10.16188/j.isa.1003-8337.2020.02.015]
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35 kV中性点经消弧线圈接地对铁磁谐振过电压影响的研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年02期
页码:
93-98
栏目:
避雷器
出版日期:
2020-04-25

文章信息/Info

Title:
Study of the Influence of 35 kV Neutral Point Grounding Through Arc Suppression Coil on Ferroresonance Overvoltage
作者:
郝耀华1 曹 斌2 徐星琛1 马 斌1 王 凯1
(1.内蒙古工业大学电力学院, 呼和浩特 010080; 2.内蒙古电力科学研究院,呼和浩特 010020)
Author(s):
HAO Yaohua1 CAO Bin2 XU Xingchen1 MA Bin1 WANG Kai1
(1.Inner Mongolia Electric Power Research Institute, Hohhot 010080, China; 2.Inner Mongolia Electric Power Research Institute, Hohhot 010020, China )
关键词:
铁磁谐振 过电压 消弧线圈 电压互感器 消谐
Keywords:
ferromagnetic resonance overvoltage arc suppression coil voltage transformer elimination of harmonics
DOI:
10.16188/j.isa.1003-8337.2020.02.015
摘要:
为解决电力系统变电站中存在的铁磁谐振过电压问题,讨论了目前消除铁磁谐振的不同方法,比较了他们的优缺点,笔者通过中性点经消弧线圈接地方法,来达到抑制、甚至消除铁磁谐振过电压的目的。通过对铁磁谐振原理分析,使用PSCAD/EMTDC仿真软件对500 kV变压器精准建模,将不同容量的消弧线圈在中性点进行投切,分析仿真结果,选择消弧线圈消谐效果最好的容量值。证明了当系统发生铁磁谐振时,中性点经消弧线圈接地对铁磁谐振过电压有明显的抑制效果,对实际工程有一定的指导意义。
Abstract:
In order to solve the ferromagnetic resonance overvoltage problem existing in power system substation, the different methods for eliminating ferromagnetic resonance are discussed. The advantages and disadvantages of the ferromagnetic resonance are discussed. The author uses the neutral point arc suppression coil grounding method to achieve suppression and eliminate the ferromagnetic resonance overvoltage. Through the analysis of the ferromagnetic resonance principle, the PSCAD/EMTDC simulation software is used to accurately model the 500 kV transformer, and the arc suppression coils of different capacities are switched at the neutral point. The simulation results are analyzed, and the arc suppression coil is selected to have the best harmonic elimination effect. It is proved that when the ferromagnetic resonance occurs in the system, the neutral point grounded by arc suppression coil has a significant suppression effect on Ferroresonance overvoltage, which has certain guiding significance for the actual engineering.

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备注/Memo

备注/Memo:
收稿日期:2018-07-09作者简介:郝耀华(1992—),男,硕士研究生,研究方向:高电压技术。
更新日期/Last Update: 2020-04-25