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1.新能源微电网湖北省协同创新中心(三峡大学),湖北省宜昌市443002
2.三峡大学电气与新能源学院,湖北省宜昌市443002
3.国网江苏省电力有限公司电力科学研究院,江苏省南京市 211103
翁汉琍(1980—),女,博士,教授,博士生导师,主要研究方向:电力系统继电保护与控制。E-mail:honey_weng@163.com
邓邦汇(2001—),男,硕士研究生,主要研究方向:电力系统继电保护与控制。E-mail:2740178023@qq.com
周照坤(2003—),男,硕士研究生,主要研究方向:电力系统继电保护与控制。
李振兴(1977—),男,通信作者,教授,博士生导师,主要研究方向:电力系统保护与控制。E-mail:lzx2007001@163.com
收稿:2024-09-24,
修回:2025-02-20,
网络出版:2025-06-13,
纸质出版:2025-07-25
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翁汉琍,邓邦汇,周照坤等.励磁涌流对换流变压器饱和保护动作特性的影响及对策[J].电力系统自动化,2025,49(14):173-180.
WENG Hanli,DENG Banghui,ZHOU Zhaokun,et al.Influence of Inrush Current on Operation Characteristics of Saturation Protection for Converter Transformer and Its Countermeasures[J].Automation of Electric Power Systems,2025,49(14):173-180.
翁汉琍,邓邦汇,周照坤等.励磁涌流对换流变压器饱和保护动作特性的影响及对策[J].电力系统自动化,2025,49(14):173-180. DOI: 10.7500/AEPS20240924003.
WENG Hanli,DENG Banghui,ZHOU Zhaokun,et al.Influence of Inrush Current on Operation Characteristics of Saturation Protection for Converter Transformer and Its Countermeasures[J].Automation of Electric Power Systems,2025,49(14):173-180. DOI: 10.7500/AEPS20240924003.
饱和保护可以防止直流偏磁对换流变压器造成危害。饱和保护在无直流偏磁工况下不应动作,但工程现场曾多次出现在换流变压器空载合闸过程中饱和保护误动的情况。针对该问题,文中对换流变压器空载合闸以及空载合闸伴随直流偏磁工况下,励磁涌流和中性线电流特征进行分析,揭示饱和保护误动作和提前动作的原因。利用单纯励磁涌流和涌流叠加直流偏磁工况下换流变压器电流衰减特征差异,构造修正系数,对饱和保护判别用的中性线电流进行修正,以区分涌流和直流偏磁对中性线电流的影响,提升保护可靠性。仿真验证结果表明,所提方法能有效防止换流变压器空载合闸期间饱和保护的误动作和提前动作。
Saturation protection can prevent DC bias from causing harm to the converter transformer. The saturation protection should not operate under conditions without DC bias. But there have been multiple incidents of misoperation of the saturation protection during the no-load closing process of the converter transformer in field engineering. To address this issue
this paper analyzes the characteristics of inrush current and neutral line current under both the no-load closing condition and the no-load closing with DC bias scenarios. The analysis reveals the causes of saturation protection misoperation and premature operation. Based on the differences in current decay characteristics between pure inrush current and inrush current superimposed with DC bias
a modification coefficient is constructed to modify the neutral line current used for saturation protection discrimination. This modification decouples the influence of inrush current and DC bias on the neutral line current
thereby enhancing protection reliability. Simulation results demonstrate that the proposed method effectively prevents misoperation and premature operation of saturation protection during the no-load closing process of converter transformers.
王俊生 , 蒲莹 , 张建锋 . 高压直流输电保护定值整定依据及配合关系探讨 [J]. 电力系统自动化 , 2024 , 48 ( 17 ): 181 - 189 .
WANG Junsheng , PU Ying , ZHANG Jianfeng . Discussion on biasis and coordination relationships of settings for high voltage direct current transmission protection [J]. Automation of Electric Power Systems , 2024 , 48 ( 17 ): 181 - 189 .
李周 , 王宇涵 , 顾伟 , 等 . 直流电网及其运行控制策略发展趋势 [J]. 电力系统自动化 , 2024 , 48 ( 24 ): 1 - 21 .
LI Zhou , WANG Yuhan , GU Wei , et al . Development trend of DC power grid and its operation control strategy [J]. China Industrial Economics , 2024 , 48 ( 24 ): 1 - 21 .
马书民 , 夏少连 , 熊玮 , 等 . HVDC/GIC型直流偏磁的差异性分析 [J]. 电力系统保护与控制 , 2023 , 51 ( 2 ): 55 - 64 .
MA Shumin , XIA Shaolian , XIONG Wei , et al . Difference analysis of HVDC/GIC type DC bias [J]. Power System Protection and Control , 2023 , 51 ( 2 ): 55 - 64 .
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 .
ZHANG Bo , ZHAO Jie , ZENG Rong , et al . Estimation of DC current distribution in AC power system caused by HVDC transmission system in ground return status [J]. Proceedings of the CSEE , 2006 , 26 ( 13 ): 84 - 88 .
王建 , 马勤勇 , 常喜强 , 等 . ±800 kV天-中直流对哈密电网变压器直流偏磁的影响 [J]. 四川电力技术 , 2014 , 37 ( 4 ): 46 - 52 .
WANG Jian , MA Qinyong , CHANG Xiqiang , et al . The Impacts of ±800 kV Tian-Zhong HVDC project on DC magnetic bias of transformers in Hami power grid [J]. Sichuan Electric Power Technology , 2014 , 37 ( 4 ): 46 - 52 .
刘连光 , 刘春明 , 张冰 , 等 . 中国广东电网的几次强磁暴影响事件 [J]. 地球物理学报 , 2008 , 51 ( 4 ): 976 - 981 .
LIU Lianguang , LIU Chunming , ZHANG Bing , et al . Strong magnetic storm’s influence on China’s Guangdong power grid [J]. Chinese Journal of Geophysics , 2008 , 51 ( 4 ): 976 - 981 .
GUO S X , LIU L G , PIRJOLA R J , et al . Impact of the EHV power system on geomagnetically induced currents in the UHV power system [J]. IEEE Transactions on Power Delivery , 2015 , 30 ( 5 ): 2163 - 2170 .
BEJMERT D , BOEHME K , KEREIT M , et al . HV transformer protection and stabilization under geomagnetically induced currents [J]. Energies , 2020 , 13 ( 18 ): 4693 .
ETEMADI A H , REZAEI-ZARE A . Optimal placement of GIC blocking devices for geomagnetic disturbance mitigation [J]. IEEE Transactions on Power Systems , 2014 , 29 ( 6 ): 2753 - 2762 .
翁汉琍 , 李昊威 , 万毅 , 等 . 特殊工况下换流变零序差动保护误动机理分析及对策研究 [J]. 电力系统保护与控制 , 2020 , 48 ( 5 ): 56 - 64 .
WENG Hanli , LI Haowei , WAN Yi , et al . Mechanism and countermeasures of mal-operation of converter transformer zero-sequence differential protection under special conditions [J]. Power System Protection and Control , 2020 , 48 ( 5 ): 56 - 64 .
袁宇波 , 陆于平 , 李澄 , 等 . 基于附加相位判别的自适应二次谐波励磁涌流制动方案研究 [J]. 中国电机工程学报 , 2006 , 26 ( 18 ): 19 - 24 .
YUAN Yubo , LU Yuping , LI Cheng , et al . An adaptive second harmonic restrained method using phase angle and amplitude for inrush detection [J]. Proceedings of the CSEE , 2006 , 26 ( 18 ): 19 - 24 .
MEDEIROS R P , BEZERRA COSTA F , MELO SILVA K , et al . A Clarke-wavelet-based time-domain power transformer differential protection [J]. IEEE Transactions on Power Delivery , 2021 , 36 ( 6 ): 1234 - 1245 .
林湘宁 , 刘世明 , 杨春明 , 等 . 几种波形对称法变压器差动保护原理的比较研究 [J]. 电工技术学报 , 2001 , 16 ( 4 ): 44 - 49 .
LIN Xiangning , LIU Shiming , YANG Chunming , et al . Study on comparisons among some waveform symmetry principle based transformer differential protection [J]. Transactions of China Electrotechnical Society , 2001 , 16 ( 4 ): 44 - 49 .
宗洪良 , 金华烽 , 朱振飞 , 等 . 基于励磁阻抗变化的变压器励磁涌流判别方法 [J]. 中国电机工程学报 , 2001 , 21 ( 7 ): 92 - 95 .
ZONG Hongliang , JIN Huafeng , ZHU Zhengfei , et al . Transformer inrush detected by the variation of magnetizing impedance [J]. Proceedings of the CSEE , 2001 , 21 ( 7 ): 92 - 95 .
葛宝明 , 苏鹏声 , 王祥珩 , 等 . 基于瞬时励磁电感频率特性判别变压器励磁涌流 [J]. 电力系统自动化 , 2002 , 26 ( 17 ): 35 - 40 .
GE Baoming , SU Pengsheng , WANG Xiangheng , et al . Distinguish inrush currents for transformers using frequency characteristic of instantaneous excitation inductance [J]. Automation of Electric Power Systems , 2002 , 26 ( 17 ): 35 - 40 .
ZHU L , FU C , LIU H , et al . A decoupled circuital model methodology for calculating DC currents in AC grids induced by HVDC grounding current [J]. PLoS One , 2019 , 14 ( 1 ): e0209548 .
鞠善忠 . 特高压直流输电单极运行变压器直流偏磁分析研究 [D]. 杭州 : 浙江大学 , 2023 .
JU Shanzhong . Analysis and research on DC bias of UHVDC transmission unipolar operation transformer [D]. Hangzhou : Zhejiang University , 2023 .
韩琦 . 直流输电系统单极大地回线运行方式下直流偏磁及其抑制措施研究 [D]. 武汉 : 华中科技大学 , 2019 .
HAN Qi . Study on DC bias and its suppression measures under unipolar earth return line operation mode of DC transmission system [D]. Wuhan : Huazhong University of Science and Technology , 2019 .
文继锋 , 张晓宇 , 程骁 , 等 . 换流变压器直流偏磁与饱和保护 [J]. 江苏电机工程 , 2013 , 32 ( 2 ): 28 - 30 .
WEN Jifeng , ZHANG Xiaoyu , CHENG Xiao , et al . DC bias and saturation protection of converter transformer [J]. Jiangsu Electrical Engineering , 2013 , 32 ( 2 ): 28 - 30 .
翁汉琍 , 李雪华 , 鲁俊生 , 等 . 特高压换流变压器对称性涌流的生成及其对大差保护的影响 [J]. 电力系统自动化 , 2017 , 41 ( 5 ): 153 - 158 .
WENG Hanli , LI Xuehua , LU Junsheng , et al . Symmetrical inrush current mechanism of ultra-high voltage converter transformer and its impact on converter connection-transformer differential protection [J]. Automation of Electric Power Systems , 2017 , 41 ( 5 ): 153 - 158 .
黄智慧 , 段雄英 , 邹积岩 , 等 . 基于改进RLS算法的故障电流参数估计 [J]. 中国电机工程学报 , 2014 , 34 ( 15 ): 2460 - 2469 .
HUANG Zhihui , DUAN Xiongying , ZOU Jiyan , et al . Fault current parameter estimation based on adaptive RLS algorithm [J]. Proceedings of the CSEE , 2014 , 34 ( 15 ): 2460 - 2469 .
王行亚 , 肖先勇 , 吴俊 , 等 . 基于线性度校验的二元线性回归系统谐波阻抗估计方法 [J]. 中国电机工程学报 , 2020 , 40 ( 9 ): 2826 - 2835 .
WANG Hangya , XIAO Xianyong , WU Jun , et al . Utility harmonic impedance estimation based on binary linear regression with linearity calibration [J]. Proceedings of the CSEE , 2020 , 40 ( 9 ): 2826 - 2835 .
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