中性点不接地系统铁磁谐振的并联电路计算模型与诊断方法
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摘要
提出了基于电感-电容并联模型的铁磁谐振计算方法,推导了系统谐振工作点的求解方法;定量分析了电压互感器磁化曲线和线路参数等因素对铁磁谐振的影响,并利用电磁暂态仿真验证了计算的准确性。
The method for calculating the ferroresonance based on the inductance-capacitance parallel model is proposed to solve the resonant working point of the system. The influence of the magnetization curve and the circuit parameters on the ferroresonance of voltage transformer is quantitatively analyzed and verified by the electromagnetic transient simulation.
The method for calculating the ferroresonance based on the inductance-capacitance parallel model is proposed to solve the resonant working point of the system. The influence of the magnetization curve and the circuit parameters on the ferroresonance of voltage transformer is quantitatively analyzed and verified by the electromagnetic transient simulation.
引文
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[18]赵小军,张晓欣,李慧奇,等.基于谐波平衡法的变压器直流偏磁电路-磁路频域耦合模型[J].电工技术学报,2014,29(9):211-218.
[19]林莉,王军兵,唐凤英,等.10kV电压互感器损坏的仿真计算研究[J].电力系统保护与控制,2012,40(17):52-55.
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[21]刘玉凤,宋成伟,吴作元.开磁路电压互感器防铁磁谐振性能分析[J].变压器,2018,55(8):52-55.
[2]平绍勋.电力系统内部过电压保护及实例分析[M].北京:中国电力出版社,2006.
[3]哈恒旭,杜正旺,周海全,等.配电网PT铁磁谐振的机理分析[J].电力科学技术学报,2010,25(1):61-66.
[4] Yu Y H,Zhou H. Study on simulation of ferroresonanceelimination in 10kV power sys-tem[C]. IEEE/PESTransmission&Distribution Conference&Exposition:Asia and Pacific,Dalian,China,2005.
[5] Jin E S, Chen X F, Xia G W,et al. Research onsubharmonic resonance[C]. International Conference onIntelligent System Design and En-gineering Applica-tion,Changsha,China,2010.
[6]刘凡,孙才新,司马文霞,等.铁磁谐振过电压混沌振荡的理论研究[J].电工技术学报,2006,21(2):104-107.
[7]赵小军,崔灿,李琳,等.基于定点谐波平衡法的铁心磁滞与损耗特性分析[J].电工技术学报,2014,29(7):10-18.
[8] Teron A C, Bartlett A, Duan N,et al. Estimating thenonlinear oscillation frequency of a power system usingthe harmonic balanced method[C]. IEEE Power andEnergy Society General Meeting(PESGM),Boston,MA,USA,2016.
[9] Jiang Y T, Jiang Y, Mu L, et al. An effective methodto limit resonance overvoltage caused by single phasegrounding fault in ul-tra-high voltage AC system[C].Advanced In-formation Technology, Electronic and Au-tomation Control Conference(IAEAC),Chongqing,China,2015.
[10]司马文霞,郑哲人,杨庆,等.用参数不匹配混沌系统的脉冲同步方法抑制铁磁谐振过电压[J].电工技术学报,2006,7(6):218-226.
[11] Zhang T, Tian S, Liu X, et al. Numerical and ex-perimental simulation researches on effec-tiveness ofanti-ferroresonance measures in dis-tribution powergrid[C]. Power and Energy En-gineering Conference,Xi'an,China,2016.
[12] Zhou L X, Yin Z D. Research on PT ferro-magneticresonance region and the controllable damping[C]Power Tech, 2007:413-418.
[13]何智强,李欣,范敏,等.基于消谐器抑制铁磁谐振过电压研究分析[J].电磁避雷器,2017,5(14):77-84.
[14]王盛阳.配电网铁磁谐振过电压的研究[D].杭州:浙江大学,2016.
[15]梅成林,张超树.电压互感器铁磁谐振分析[J].电网技术, 2008, 32(S2):311-313.
[16]王军兵. 10kV电网单相接地引起电压互感器损坏的机理研究[D].重庆:重庆大学,2012.
[17]林莉,何月,王军兵,等.中性点不接地电网单相接地时电压互感器损坏机理[J].高电压技术,2013,39(5):1115-1120.
[18]赵小军,张晓欣,李慧奇,等.基于谐波平衡法的变压器直流偏磁电路-磁路频域耦合模型[J].电工技术学报,2014,29(9):211-218.
[19]林莉,王军兵,唐凤英,等.10kV电压互感器损坏的仿真计算研究[J].电力系统保护与控制,2012,40(17):52-55.
[20]彭平、周卫华、谢耀恒等.关于地铁杂散电流引起的变压器直流偏磁的分析与研究[J].变压器,2017,54(11):26-30.
[21]刘玉凤,宋成伟,吴作元.开磁路电压互感器防铁磁谐振性能分析[J].变压器,2018,55(8):52-55.