电流波形对多柱并联避雷器电流分布的影响
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摘要
高压直流输电系统操作过电压持续时间长,释放能量大,为提高避雷器的能量吸收能力,高压直流系统的避雷器多采用多柱阀片并联的结构.多柱并联避雷器柱间电流分配的均匀性对整只避雷器的总体能量吸收能力具有重要影响.为更好地探明冲击电流的波形对多柱并联阀片间电流分布的影响,选取2个厂家的避雷器阀片,试验研究了电流波形对4柱并联阀片的电流分布不均匀系数的影响,研究表明冲击电流的波形对电流不均匀系数具有一定的影响,但影响程度较小,由冲击电流的波形所引起的电流不均匀系数不会超过标准规定值.
The operation overvoltage of high voltage direct current(HVDC) transmission system usually has long duration time and releases a large amount of energy. In order to improve the energy absorption capacity,the multi-column valve structure arrester is adopted. The uniformity of current distribution between columns has an important effect on the total energy absorption capacity of the whole arrester. To investigate the influence of impulse current waveform on current distribution, arresters from two manufacturers are tested in this paper. The results show that the impulse current waveform has some influence on current distribution, but its influence degree is small, the current nonuniformity coefficient caused by the impulse current waveform will not exceed the standard specification.
The operation overvoltage of high voltage direct current(HVDC) transmission system usually has long duration time and releases a large amount of energy. In order to improve the energy absorption capacity,the multi-column valve structure arrester is adopted. The uniformity of current distribution between columns has an important effect on the total energy absorption capacity of the whole arrester. To investigate the influence of impulse current waveform on current distribution, arresters from two manufacturers are tested in this paper. The results show that the impulse current waveform has some influence on current distribution, but its influence degree is small, the current nonuniformity coefficient caused by the impulse current waveform will not exceed the standard specification.
引文
[1]熊泰昌.电力避雷器[M].北京:中国水利水电出版社,2013.Xiong Taichang.Power Arresters[M].Beijing:China WaterPower Press,2013.
[2]张文化,郭洁,樊力,等.GB/T 11032-2000交流无间隙金属氧化物避雷器[S].北京:中国国家标准出版社,2009.Zhang Wenhua,Guo Jie,Fan Li,et al.GB/T 11032-2000 Metal-oxide Surge Arresters without Gaps for AC Systems[S].Beijing:China National Standard Press,2009.
[3]饶宏,张东辉,赵晓斌,等.特高压直流输电的实践和分析[J].高电压技术,2015,41(8):2481-2488.Rao Hong,Zhang Donghui,Zhao Xiaobin,et al.Practice and analyses of UHVDC power transmission[J].High Voltage Engineering,2015,41(8):2481-2488.
[4]电力规划设计标准化技术委员会.DL/T 5224-2005高压直流输电大地返回运行系统设计技术规定[S].北京:中国标准出版社,2005.Technical Committee for Standardization of Electric Power Planning and Design.DL/T 5224-2005 Technical Specifications for Design of Ground Return Operation System for HVDC Transmission[S].Beijing:China Standards Press,2005.
[5]超高压输电公司检修试验中心.高压直流系统中性母线避雷器性能评估与故障机理研究[R].广州:南方电网超高压公司,2017.Inspection Center of EHV Transmission Companies.Performance evaluation and fault mechanism study of neutral bus arrester for HVDC system[R].Guangzhou:China Southern Power Grid Ultra High Voltage Company,2017.
[6]荆勇,任震,杨晋柏,等.天广直流输电系统运行过电压的研究[J].高电压技术,2002,28(4):1-3.Jing Yong,Ren Zhen,Yang Jinbai,et al.Study on overvoltage of Tian-Guang HVDC transmission[J].High Voltage Engineering,2002,28(4):1-3.
[7]王典浪,刘晋孝,蒋龙,等.±500 kV昭通换流站中性母线避雷器故障原因分析及对策[J].电瓷避雷器,2017,(4):132-135.Wang Dianlang,Liu Jinxiao,Jiang Long,at al.Analysis and countermeasure of neutral-bus arrester fault in±500 kV Zhaotong Converter Station[J].Insulators and Surge Arresters,2017,(4):132-135.
[8]刘羿辰,朱晓光,邓军波,等.±1 100 kV直流换流站典型接地过电压研究[J].高电压技术,2017,43(10):3238-3247.Liu Yichen,Zhu Xiaoguang,Deng Junbo,et al.Typical grounding overvoltage in±1 100 kV HVDC converter station[J].High Voltage Engineering,2017,43(10):3238-3247.
[9]张一鸣,朱斌,王新,等.避雷器能量吸收与均流技术的研究[J].电瓷避雷器,2008,(5):26-29.Zhang Yiming,Zhu Bin,Wang Xin,et al.Study on the energy absorption capability and the current sharing for multi-column arrester[J].Insulators and Surge Arresters,2008,(5):26-29.
[10]祝嘉喜,何计谋,马永乐,等.1 000 kV避雷器电流分布试验方法及特性的研究[J].电瓷避雷器,2011,(4):39-42.Zhu Jiaxi,He Jimou,Ma Yongle,et al.Current distribution test methods and characteristics research for1 000 kV surge arrester[J].Insulators and Surge Arresters,2011,(4):39-42.
[11]陈锡磊,杨科,何整杰,等.电流分布不均匀性对多柱并联ZnO避雷器能量吸收能力的影响[J].陕西电力,2017,45(3):82-85.Chen Xilei,Yang Ke,He Zhengjie,et al.Influence of non-uniform current distribution on energy absorption capability of multi-column parallel ZnO arrester[J].Insulators and Surge Arresters,2017,45(3):82-85.
[12]胡淑慧,赵东一,赵峥,等.±8 00 kV特高压直流换流站EM避雷器工况分析及其关键技术的研究[J].电瓷避雷器,2018,(4):8-15.Hu Shuhui,Zhao Dongyi,Zhao Zheng,et al.Condition analysis and key technology research of arrester in±800 kV HUVDC converter station[J].Insulators and Surge Arresters,2018,(4):8-15.
[2]张文化,郭洁,樊力,等.GB/T 11032-2000交流无间隙金属氧化物避雷器[S].北京:中国国家标准出版社,2009.Zhang Wenhua,Guo Jie,Fan Li,et al.GB/T 11032-2000 Metal-oxide Surge Arresters without Gaps for AC Systems[S].Beijing:China National Standard Press,2009.
[3]饶宏,张东辉,赵晓斌,等.特高压直流输电的实践和分析[J].高电压技术,2015,41(8):2481-2488.Rao Hong,Zhang Donghui,Zhao Xiaobin,et al.Practice and analyses of UHVDC power transmission[J].High Voltage Engineering,2015,41(8):2481-2488.
[4]电力规划设计标准化技术委员会.DL/T 5224-2005高压直流输电大地返回运行系统设计技术规定[S].北京:中国标准出版社,2005.Technical Committee for Standardization of Electric Power Planning and Design.DL/T 5224-2005 Technical Specifications for Design of Ground Return Operation System for HVDC Transmission[S].Beijing:China Standards Press,2005.
[5]超高压输电公司检修试验中心.高压直流系统中性母线避雷器性能评估与故障机理研究[R].广州:南方电网超高压公司,2017.Inspection Center of EHV Transmission Companies.Performance evaluation and fault mechanism study of neutral bus arrester for HVDC system[R].Guangzhou:China Southern Power Grid Ultra High Voltage Company,2017.
[6]荆勇,任震,杨晋柏,等.天广直流输电系统运行过电压的研究[J].高电压技术,2002,28(4):1-3.Jing Yong,Ren Zhen,Yang Jinbai,et al.Study on overvoltage of Tian-Guang HVDC transmission[J].High Voltage Engineering,2002,28(4):1-3.
[7]王典浪,刘晋孝,蒋龙,等.±500 kV昭通换流站中性母线避雷器故障原因分析及对策[J].电瓷避雷器,2017,(4):132-135.Wang Dianlang,Liu Jinxiao,Jiang Long,at al.Analysis and countermeasure of neutral-bus arrester fault in±500 kV Zhaotong Converter Station[J].Insulators and Surge Arresters,2017,(4):132-135.
[8]刘羿辰,朱晓光,邓军波,等.±1 100 kV直流换流站典型接地过电压研究[J].高电压技术,2017,43(10):3238-3247.Liu Yichen,Zhu Xiaoguang,Deng Junbo,et al.Typical grounding overvoltage in±1 100 kV HVDC converter station[J].High Voltage Engineering,2017,43(10):3238-3247.
[9]张一鸣,朱斌,王新,等.避雷器能量吸收与均流技术的研究[J].电瓷避雷器,2008,(5):26-29.Zhang Yiming,Zhu Bin,Wang Xin,et al.Study on the energy absorption capability and the current sharing for multi-column arrester[J].Insulators and Surge Arresters,2008,(5):26-29.
[10]祝嘉喜,何计谋,马永乐,等.1 000 kV避雷器电流分布试验方法及特性的研究[J].电瓷避雷器,2011,(4):39-42.Zhu Jiaxi,He Jimou,Ma Yongle,et al.Current distribution test methods and characteristics research for1 000 kV surge arrester[J].Insulators and Surge Arresters,2011,(4):39-42.
[11]陈锡磊,杨科,何整杰,等.电流分布不均匀性对多柱并联ZnO避雷器能量吸收能力的影响[J].陕西电力,2017,45(3):82-85.Chen Xilei,Yang Ke,He Zhengjie,et al.Influence of non-uniform current distribution on energy absorption capability of multi-column parallel ZnO arrester[J].Insulators and Surge Arresters,2017,45(3):82-85.
[12]胡淑慧,赵东一,赵峥,等.±8 00 kV特高压直流换流站EM避雷器工况分析及其关键技术的研究[J].电瓷避雷器,2018,(4):8-15.Hu Shuhui,Zhao Dongyi,Zhao Zheng,et al.Condition analysis and key technology research of arrester in±800 kV HUVDC converter station[J].Insulators and Surge Arresters,2018,(4):8-15.