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电网技术  2009 

国华台山发电厂主变直流偏磁问题分析与治理

, PP. 33-38

Keywords: 电力系统,高压直流输电(HVDC),变压器中性点直流电流,直流偏磁

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Abstract:

讨论了直流输电系统大地电流对国华台山发电厂主变压器的影响,计算比较了分别采用电容隔直法、小电阻限流法、反向电流限制法和电位补偿法消除该电厂变压器中性点直流电流的优缺点,校核验证了在广东省220kV及以上电网夏季大、小运行方式下国华台电1、2号主变中性点增加电容隔直装置对现有保护配置与整定的影响,确定了采用电容隔直法来抑制该电厂主变压器中性点直流电流。

References

[1]  王明新,张强.直流输电系统接地极电流对交流电网的影响分析[J].电网技术,2005,29(3):9-14.
[2]  Wang Mingxin,Zhang Qiang.Analysis on influence of ground electrode current in HVDC on AC power network[J].Power System Technology,2005,29(3):9-14(in Chinese).
[3]  DL/T 5224-2005,高压直流输电大地返回系统设计技术规定[S].
[4]  马志强.变压器直流偏磁的原理性仿真[J].广东电力,2004,17(2):5-9.
[5]  Ma Zhiqiang.Simulation of transformer DC magnetic biasing [J].Guangdong Electric Power,2004,17(2):5-9(in Chinese).
[6]  赵杰,黎小林,吕金壮,等.抑制变压器直流偏磁的串接电阻措施[J].电力系统自动化,2006,30(12):88-91.
[7]  Zhao Jie,Li Xiaolin,Lü Jinzhuang,et al.Applying series resistor to restrain power transformer DC biasing[J].Automation of Electric Power System,2006,30(12):88-91(in Chinese).
[8]  Sakis M A P,George C.Effects of DC ground electrode on converter transformers[J].IEEE Trans on power delivery,1989,4(2):995-1002.
[9]  吴宝英,陈允鹏,陈旭,等.±800kV云广直流输电工程对南方电网安全稳定的影响[J].电网技术,2006,30(22):5-12.
[10]  Wu Baoying,Chen Yunpeng,Chen Xu,et al.Study on impacts of ±800 kV Yunnan-Guangdong HVDC transmission project on security and stability of China Southern Power Grid[J].Power System Technology,2006,30(22):5-12(in Chinese).
[11]  李峰,管霖,钟杰峰,等.广东交直流混合电网的运行稳定性研究[J].电网技术,2005,29(11):1-4.
[12]  Li Feng,Guan Lin,Zhong Jiefeng,et al.Study on stability of Guangdong AC/DC hybrid power grid[J].Power System Technology,2005,29(11):1-4(in Chinese).
[13]  赵杰,张波.输电线路地线对流入变压器中性点直流电流的影响[J].电网技术,2005,29(19):60-64.
[14]  Zhao Jie,Zhang Bo.Impact of ground wire in HVDC transmission line on direct current flowing into neutral point of power transformer[J].Power System Technology,2005,29(19):60-64(in Chinese).
[15]  朱艺颖,蒋卫平,曾昭华,等.抑制变压器中性点直流电流的措施研究[J].中国电机工程学报,2005,25(13):1-7.
[16]  Zhu Yiying,Jiang Weiping,Zeng Zhaohua,et al.Studying on measures of restraining DC current through transformer neutrals [J].Proceedings of the CSEE,2005,25(13):1-7(in Chinese).
[17]  蒯狄正,万达,邹云.直流输电地中电流对电网设备影响的分析与处理[J].电力系统自动化,2005,29(2):81-82.
[18]  Kuai Dizheng,Wan Da,Zou Yun.Analysis and handling of the impact of geomagnetically induced current upon electric network equipment in DC transmission[J].Automation of Electric Power System,2005,29(2):81-82(in Chinese).
[19]  蒯狄正,万达,邹云.变压器中性点注入反向抗偏磁直流的应用分析[J].华东电力,2005,33(6):44-45.
[20]  Kuai Dizheng,Wan Da,Zou Yun.Application of bias-resisting reverse DC injection at neutral point of transformers[J].East China Electric Power,2005,33(6):44-45(in Chinese).
[21]  马志强.消减变压器中性点直流电流抑制直流偏磁的电位补偿方法[J].广东电力,2007,20(5):1-5.
[22]  Ma Zhiqiang.A potential compensation method to eliminate transformer neutral direct current produced by HVDC[J].Guangdong Electric Power,2007,20(5):1-5(in Chinese).
[23]  马志强,黎小林,钟定珠.直流输电大地电流对交流系统影响的网络分析算法[J].广东电力,2005,18(12):4-8.
[24]  Ma Zhiqiang,Li Xiaolin,Zhong Dingzhu.Network algorithm to analyze effects of DC transmission ground current on AC system [J].Guangdong Electric Power,2005,18(12):4-8(in Chinese).
[25]  Yin Yonghua,Zhang Jinping.Development of transformer neutrals DC current blocking device in high power system[C].IEEE PowerCon,2006.
[26]  马玉龙,肖湘宁,姜旭,等.用于抑制大型电力变压器直流偏磁的接地电阻优化配置[J].电网技术,2006,30(3):62-65.
[27]  Ma Yulong,Xiao Xiangning,Jiang Xu,et al.Optimized grounding resistance configuration against DC magnetic bias of large capacity power transformer[J].Power System Technology,2006,30(3):62-65(in Chinese).
[28]  张波,赵杰,曾嵘,等.直流大地运行时交流系统直流电流分布的预测方法[J].中国电机工程学报,2006,26(13):84-88.
[29]  Zhang Bo,Zhao Jie,Zeng Rong,et al.Estimation of DC distribution in AC power system caused by HVDC transmission system in ground return status[J].Proceedings of the CSEE,2006,26(13):84-88(in Chinese).
[30]  Pitcher P,Bolduc L,Dutil A,et al.Study of the acceptable DC current limited in core-form power transfomers[J].IEEE Trans on Power Delivery,1991,12(1):257-265.
[31]  钟连宏,陆培均.直流接地极电流对中性点直接接地变压器影响[J].高电压技术,2003,29(8):12-13.
[32]  Zhong Lianhong,Lu Peijun.The influence of current of DC earthing electrode on directly grounded transformer[J].High Voltage Engineering,2003,29(8):12-13(in Chinese).
[33]  广东省电力调度中心,华南理工大学电力学院.变压器中性点偏磁抑制装置对继电保护的影响[R].广州:广州电力调度中心,2006.

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