基于非线性磁路方程的变压器直流偏磁风险评估
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摘要
利用变压器电路与磁路相关联的特点,建立了非线性磁阻模型和仿真模型,分析了直流偏磁状态下等效励磁电流的波形畸变情况,探讨了偏置磁通和直流偏磁电流之间的非线性函数关系。
Based on the characteristics of transformer circuit and magnetic circuit, the nonlinear magnetic circuit model and simulation model are established. The waveform distortion of equivalent excitation current under DC bias is analysed. The nonlinear function relationship between bias magnetic flux and DC bias current is discussed.
Based on the characteristics of transformer circuit and magnetic circuit, the nonlinear magnetic circuit model and simulation model are established. The waveform distortion of equivalent excitation current under DC bias is analysed. The nonlinear function relationship between bias magnetic flux and DC bias current is discussed.
引文
[1]董曼玲,姚帅,郭磊,等.天山-中州特高压直流输电工程投运后河南电网主变直流偏磁分析及抑制[J].高电压技术,2017,43(2):611-618.
[2]邹国平,姚晖,何文林,等.溪洛渡-浙西±800kV特高压直流输电工程受端电网直流偏磁治理[J].高电压技术, 2016,42(2):543-550.
[3] DL/T5224-2014,高压直流输电大地返回系统设计技术规程[S].
[4]曹楠,王天正,王冬青,等.变压器直流偏磁治理站点选择优化研究[J].电力系统保护与控制,2017,45(10):117-122.
[5]阮江军,徐闻婕,丁志锋,等.基于场路直接耦合模型的交流电网直流偏磁电流分布研究[J].高电压技术,2017,43(4):1333-1340.
[6] Jazebi S, Zirka S E, Lambert M, et al. Duality derived transformer models for low-frequency electromagnetic transients. Part I:Topological models[J]. IEEE Transactions on Power Delivery, 2016,31(5):2410-2419.
[7] Jazebi S, Rezaei-Zare A, Lambert M, et al. Dualityderived transformer models for low-frequency electromagnetic transients. Part II:Complementary modeling guidelines[J]. IEEE Transactions on Power Delivery,2016,31(5):2420-2430.
[8] Boteler D H, Bradley E. On the interaction of power transformers and geomagnetically induced currents[J].IEEE Transactions on Power Delivery, 2016,31(5):2188-2195.
[9]黄义隆,张波,国建宝,等.改善直流电流地中分布的接地极互联技术研究[J].电网技术,2017,41(4):1338-1344.
[10]杜建平,李书连,栾兰,等.直流偏磁下400kV单相电力变压器励磁特性的试验研究[J].变压器,2017,54(1):50-53.
[11]欧小冬,李英,刘献东.变压器直流偏磁下硅钢片性能研究[J].变压器,2017,54(3):56-59.
[12]刘连光,闫旭东,马成廉,等.换流变压器编组和受端电网结构对其直流偏磁的影响研究[J].电网技术,2016,40(01):322-327.
[13] Xie Z, Lin X, Zhang Z, et al. Advanced DC bias suppression strategy based on finite DC blocking devices[J]. IEEE Transactions on Power Delivery, 2017,PP(99):1-1.
[14] Rezaei-Zare A, Etemadi A. GIC mitigation in power systems taking into account equipment thermal limits and power system operation constraints[J]. IEEE Transactions on Power Delivery, 2017,PP(99):1-1.
[15]谢志成,林湘宁,李正天,等.基于隔直装置全局优化投切的直流偏磁治理方法[J].中国电机工程学报,2017,37(24):1-9.
[16]刘连光,杨培宏,马成廉,等.中性点串接小电阻均摊电网GICs的计算方法[J].中国电机工程学报,2017,37(11):3108-3117.
[17] Zirka S E, Moroz Y I, H覬idalen H K, et al. Practical experience in using a topological model of a core-type three-phase transformer:no-load and inrush conditions[J]. IEEE Transactions on Power Delivery, 2017,32(4):2081-2090.
[2]邹国平,姚晖,何文林,等.溪洛渡-浙西±800kV特高压直流输电工程受端电网直流偏磁治理[J].高电压技术, 2016,42(2):543-550.
[3] DL/T5224-2014,高压直流输电大地返回系统设计技术规程[S].
[4]曹楠,王天正,王冬青,等.变压器直流偏磁治理站点选择优化研究[J].电力系统保护与控制,2017,45(10):117-122.
[5]阮江军,徐闻婕,丁志锋,等.基于场路直接耦合模型的交流电网直流偏磁电流分布研究[J].高电压技术,2017,43(4):1333-1340.
[6] Jazebi S, Zirka S E, Lambert M, et al. Duality derived transformer models for low-frequency electromagnetic transients. Part I:Topological models[J]. IEEE Transactions on Power Delivery, 2016,31(5):2410-2419.
[7] Jazebi S, Rezaei-Zare A, Lambert M, et al. Dualityderived transformer models for low-frequency electromagnetic transients. Part II:Complementary modeling guidelines[J]. IEEE Transactions on Power Delivery,2016,31(5):2420-2430.
[8] Boteler D H, Bradley E. On the interaction of power transformers and geomagnetically induced currents[J].IEEE Transactions on Power Delivery, 2016,31(5):2188-2195.
[9]黄义隆,张波,国建宝,等.改善直流电流地中分布的接地极互联技术研究[J].电网技术,2017,41(4):1338-1344.
[10]杜建平,李书连,栾兰,等.直流偏磁下400kV单相电力变压器励磁特性的试验研究[J].变压器,2017,54(1):50-53.
[11]欧小冬,李英,刘献东.变压器直流偏磁下硅钢片性能研究[J].变压器,2017,54(3):56-59.
[12]刘连光,闫旭东,马成廉,等.换流变压器编组和受端电网结构对其直流偏磁的影响研究[J].电网技术,2016,40(01):322-327.
[13] Xie Z, Lin X, Zhang Z, et al. Advanced DC bias suppression strategy based on finite DC blocking devices[J]. IEEE Transactions on Power Delivery, 2017,PP(99):1-1.
[14] Rezaei-Zare A, Etemadi A. GIC mitigation in power systems taking into account equipment thermal limits and power system operation constraints[J]. IEEE Transactions on Power Delivery, 2017,PP(99):1-1.
[15]谢志成,林湘宁,李正天,等.基于隔直装置全局优化投切的直流偏磁治理方法[J].中国电机工程学报,2017,37(24):1-9.
[16]刘连光,杨培宏,马成廉,等.中性点串接小电阻均摊电网GICs的计算方法[J].中国电机工程学报,2017,37(11):3108-3117.
[17] Zirka S E, Moroz Y I, H覬idalen H K, et al. Practical experience in using a topological model of a core-type three-phase transformer:no-load and inrush conditions[J]. IEEE Transactions on Power Delivery, 2017,32(4):2081-2090.