铁磁谐振在调度端的典型特征
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摘要
小电流接地系统的铁磁谐振事故在调度端的典型特征为中性点零序电压(3U0)越限报警信号的"动作/复归"多次成对出现;母线电压中有两相呈现为0或1.2倍线电压(遥测满码溢出);故障母线上的所有保护装置告警信号的"动作/复归"多次成对出现;相邻母线伴随出现耦合谐振、消弧线圈的频繁动作信号。这些特征综合起来使铁磁谐振明显有别于单相接地、单相断线故障,有利于谐振事故的快速处理。
The typical characteristics of ferroresonance accident happening in a network grounded with arc extinguishing coil are manifested in multiple times by 3U0 off-limit alarm,with two of the three-phase voltage and its historical curve,protection alarm,arc extinguishing alarm information appearing in pairs in the dispatching automation interface.They can be used as the ferroresonance comprehensive criterion,while ferroresonance recognition time is no longer than 10 minutes by the standard identifying process.
The typical characteristics of ferroresonance accident happening in a network grounded with arc extinguishing coil are manifested in multiple times by 3U0 off-limit alarm,with two of the three-phase voltage and its historical curve,protection alarm,arc extinguishing alarm information appearing in pairs in the dispatching automation interface.They can be used as the ferroresonance comprehensive criterion,while ferroresonance recognition time is no longer than 10 minutes by the standard identifying process.
引文
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[8]王艳芬,孔德杰,王占彬.一起10kV PT三相烧损造成主变跳闸事故的分析[J].青海电力,2005,24(2):39-40. WANG Yanfen,KONG Dejie,WANG Zhanbin.Analysis of transformer trip accident caused by a 10 kV PT three-phase burning damage[J].Qinghai Electric Power,2005,24(2):39-40.
[9]梁望霖,刘力.河池供电局锡山变10kV系统电压互感器多次烧坏事故的分析和仿真计算[J].广西电力,2004(4):27-29.LIANG Wanglin,LIU Li.Analysis and simulation of 10kV system transformer repeatedly burning accident in Xishan substation of Hechi power supply bureau[J].Guangxi Power,2004(4):27-29.
[10]吴丽华,郑安.发电系统中铁磁谐振故障分析与解决办法[J].齐鲁石化工,2002,30(2):114-116.WU Lihua,ZHENG An.Analysis and solutions of power system ferroresonance[J].Qilu Petrochemical Industry,2002,30(2):114-116.
[11]陈飞,田园.金山变电站10kV系统电压互感器高压熔丝频繁熔断故障[J].电气试验,2005,1(1):52-54.CHEN Fei,TIAN Yuan.Analysis of 10 kV system transformer high voltage fuse’s frequent fault in Jinshan substation[J].Electrical Test,2005,1(1):52-54.
[12]薛福文,关杰林,李健生.三峡大坝船闸变电站6kV系统的铁磁谐振现象及其治理[J].华中电力,2001,14(1):47-48.XUE Fuwen,GUAN Jielin,LI Jiansheng.Ferromagnetic resonance phenomenon of Sanxia daba ship lock substation’s6kV system and its governance[J].Huazhong Power,2001,14(1):47-48.
[13]王鹏,郭洁,齐兴顺,等.35kV中性点经消弧线圈接地系统几种铁磁谐振消谐措施有效性分析[J].高压电技术,2011,36(30):24-26.WANG Peng,GUO Jie,QI Xingsun,et al.Effectiveness analysis of several ferromagnetic resonance elimination measures in the 35 kV neutral point earthing via arc extinguishing coil system[J].High Voltage Technique,2011,36(30):24-26.
[2]齐郑,董迪,杨以涵.中性点不接地系统铁磁谐振与单相接地辨识技术[J].电力系统自动化,2010,34(1):55-58.QI Zheng,DONG Di,YANG Yihan.Technique for differentiation between ferroresonance and single-phase-to-earth fault in isolated neutral point system[J].Automation of Electric Power Systems,2010,34(1):55-58.
[3]张业.电力系统铁磁谐振过电压研究[D].成都:西南交通大学,2008.
[4]曾祥君,于永源,周永庆,等.配电网谐振状态与单相接地状态的辨识[J].电力系统自动化,1998,22(8):41-43.ZENG Xiangjun,YU Yongyuan,ZHOU Yongqing,et al.Identification of distribution network with single-phase resonant state of the ground state[J].Automation of Electric Power Systems,1998,22(8):41-43.
[5]赵翠宇,管益斌.电压互感器与开关断口电容铁磁谐振的分析与预防[J].电力系统自动化,2002,26(2):72-74.ZHAO Cuiyu,GUAN Yibin.Analysis and prevention of ferromagnetic resonance between PT and switch’s fracture capacitance[J].Automation of Electric Power Systems,2002,26(2):72-74.
[6]陈宏,薛也敏.电力系统铁磁谐振过电压的研究与预防[J].冶金动力,2001(2):4-6.CHEN Hong,XUE Yemin.Research and prevention of ferromagnetic resonance over-voltage in power systems[J].Metallurgical Power,2001(2):4-6.
[7]张向东,张华龙,李英.电力系统铁磁谐振的危害、鉴别及其防治措施[J].电力学报,2002,17(4):283-286.ZHANG Xiangdong,ZHANG Hualong,LI Ying.Hazards,identification of ferroresonance in power system and its control measures[J].Journal of Electric Power,2002,17(4):283-286.
[8]王艳芬,孔德杰,王占彬.一起10kV PT三相烧损造成主变跳闸事故的分析[J].青海电力,2005,24(2):39-40. WANG Yanfen,KONG Dejie,WANG Zhanbin.Analysis of transformer trip accident caused by a 10 kV PT three-phase burning damage[J].Qinghai Electric Power,2005,24(2):39-40.
[9]梁望霖,刘力.河池供电局锡山变10kV系统电压互感器多次烧坏事故的分析和仿真计算[J].广西电力,2004(4):27-29.LIANG Wanglin,LIU Li.Analysis and simulation of 10kV system transformer repeatedly burning accident in Xishan substation of Hechi power supply bureau[J].Guangxi Power,2004(4):27-29.
[10]吴丽华,郑安.发电系统中铁磁谐振故障分析与解决办法[J].齐鲁石化工,2002,30(2):114-116.WU Lihua,ZHENG An.Analysis and solutions of power system ferroresonance[J].Qilu Petrochemical Industry,2002,30(2):114-116.
[11]陈飞,田园.金山变电站10kV系统电压互感器高压熔丝频繁熔断故障[J].电气试验,2005,1(1):52-54.CHEN Fei,TIAN Yuan.Analysis of 10 kV system transformer high voltage fuse’s frequent fault in Jinshan substation[J].Electrical Test,2005,1(1):52-54.
[12]薛福文,关杰林,李健生.三峡大坝船闸变电站6kV系统的铁磁谐振现象及其治理[J].华中电力,2001,14(1):47-48.XUE Fuwen,GUAN Jielin,LI Jiansheng.Ferromagnetic resonance phenomenon of Sanxia daba ship lock substation’s6kV system and its governance[J].Huazhong Power,2001,14(1):47-48.
[13]王鹏,郭洁,齐兴顺,等.35kV中性点经消弧线圈接地系统几种铁磁谐振消谐措施有效性分析[J].高压电技术,2011,36(30):24-26.WANG Peng,GUO Jie,QI Xingsun,et al.Effectiveness analysis of several ferromagnetic resonance elimination measures in the 35 kV neutral point earthing via arc extinguishing coil system[J].High Voltage Technique,2011,36(30):24-26.