Abstract：Driven by the national “dual carbon target” policy, the installed capacity of photovoltaic power has increased rapidly, reaching 890million kilowatts by the end of 2024. In Jiangsu, Shandong, Henan and other regions of China, the photovoltaic power generation of distribution system has exceeded the local load demand during peak hours, showing a new feature of reverse transmission of electric energy from the distribution network to the main network. Different from the traditional distribution system, the strong uncertainty of photovoltaic power source makes the operation state of distribution system change in a wide range, and the conventional current protection is difficult to trip quickly and accurately.
孔嘉靖, 贾科, 毕天姝, 邓邦, 刘昊霖, 张胜尧. 基于配电系统运行方式感知的自适应电流保护[J]. 电工技术学报, 2026, 41(7): 2341-2352.
Kong Jiajing, Jia Ke, Bi Tianshu, Deng Bang, Liu Haolin, Zhang Shengyao. Adaptive Current Protection Based on Operation Mode Perception of Distribution System. Transactions of China Electrotechnical Society, 2026, 41(7): 2341-2352.
[1] 贾科, 杨哲, 赵其娟, 等. 适用于新能源场站送出线路的高频突变量距离保护[J]. 电网技术, 2019, 43(9): 3271-3280. Jia Ke, Yang Zhe, Zhao Qijuan, et al.High-frequency fault component based distance protection for transmission lines connected to renewable energy power plants[J]. Power System Technology, 2019, 43(9): 3271-3280. [2] 李宗博, 崔一嘉, 王昊晴, 等. 含逆变型分布式电源的配电网馈线终端告警信息校正及故障定位方法[J]. 电工技术学报, 2025, 40(4): 1268-1286. Li Zongbo, Cui Yijia, Wang Haoqing, et al.Method of alarm information correction and fault location for distribution network with inverter-interfaced distributed generation[J]. Transactions of China Electrotechnical Society, 2025, 40(4): 1268-1286. [3] 张剑, 崔明建, 何怡刚. 结合数据驱动与物理模型的主动配电网双时间尺度电压协调优化控制[J]. 电工技术学报, 2024, 39(5): 1327-1339. Zhang Jian, Cui Mingjian, He Yigang.Dual timescales coordinated and optimal voltages control in distribution systems using data-driven and physical optimization[J]. Transactions of China Electrotechnical Society, 2024, 39(5): 1327-1339. [4] 李响, 周成瀚, 邹贵彬, 等. 基于时域波形的有源配电网自适应电流差动保护[J]. 电力系统自动化, 2025, 49(14): 181-189. Li Xiang, Zhou Chenghan, Zou Guibin, et al.Time-domain waveform based adaptive current differential protection for active distribution networks[J]. Auto-mation of Electric Power Systems, 2025, 49(14): 181-189. [5] Shen Shaofei, Lin Da, Wang Huifang, et al.An adaptive protection scheme for distribution systems with DGs based on optimized thevenin equivalent parameters estimation[J]. IEEE Transactions on Power Delivery, 2017, 32(1): 411-419. [6] 晁晨栩, 郑晓冬, 高飘, 等. 含高比例光伏配电网的高频阻抗差动保护[J]. 中国电机工程学报, 2021, 41(20): 6968-6979. Chao Chenxu, Zheng Xiaodong, Gao Piao, et al.High frequency impedance differential protection with high proportion of photovoltaic power distribution net-work[J]. Proceedings of the CSEE, 2021, 41(20): 6968-6979. [7] 罗国敏, 谭颖婕, 吴梦宇, 等. 考虑电压跌落差异的有源配电网功率差动保护[J]. 电工技术学报, 2025, 40(4): 1287-1306. Luo Guomin, Tan Yingjie, Wu Mengyu, et al.Power differential protection for active distribution networks considering voltage drop differences[J]. Transactions of China Electrotechnical Society, 2025, 40(4): 1287-1306. [8] Aghdam T S, Kazemi Karegar H, Zeineldin H H.Variable tripping time differential protection for microgrids considering DG stability[J]. IEEE Transactions on Smart Grid, 2019, 10(3): 2407-2415. [9] Sinclair A, Finney D, Martin D, et al.Distance protection in distribution systems: how it assists with integrating distributed resources[J]. IEEE Transactions on Industry Applications, 2014, 50(3): 2186-2196. [10] 李君, 何敏, 黄守道, 等. 基于相位差的小电阻接地有源配电网接地故障保护算法[J]. 电工技术学报, 2024, 39(23): 7418-7429. Li Jun, He Min, Huang Shoudao, et al.Grounding fault protection algorithm of small resistance earthing active distribution network based on phase difference[J]. Transactions of China Electrotechnical Society, 2024, 39(23): 7418-7429. [11] 蔡煜, 蔡泽祥, 李晓华, 等. 基于采样值状态估计的配电网虚拟量测特性与网络化保护方法[J]. 电网技术, 2021, 45(10): 4152-4160. Cai Yu, Cai Zexiang, Li Xiaohua, et al.Distribution network virtual measurement characteristics and communication-assisted protection method based on sampling value state estimation[J]. Power System Technology, 2021, 45(10): 4152-4160. [12] 邓祥力, 葛慧宁, 廖玥琳, 等. 基于多源数据交互的高渗透率主动配电网保护策略[J]. 电力科学与技术学报, 2024, 39(2): 101-111. Deng Xiangli, Ge Huining, Liao Yuelin, et al.Active distribution network protection strategy based on multi-source data interaction under high permeability[J]. Journal of Electric Power Science and Technology, 2024, 39(2): 101-111. [13] 曾德辉, 王钢, 郭敬梅, 等. 含逆变型分布式电源配电网自适应电流速断保护方案[J]. 电力系统自动化, 2017, 41(12): 86-92. Zeng Dehui, Wang Gang, Guo Jingmei, et al.Adaptive current protection scheme for distribution network with inverter-interfaced distributed generators[J]. Auto-mation of Electric Power Systems, 2017, 41(12): 86-92. [14] 袁智勇, 徐全, 徐刚, 等. 含大容量分布式电源接入的配电网电流保护优化方案[J]. 电网技术, 2021, 45(5): 1862-1869. Yuan Zhiyong, Xu Quan, Xu Gang, et al.Current protection optimization scheme in distribution network with large capacity distributed generators[J]. Power System Technology, 2021, 45(5): 1862-1869. [15] 余磊, 贾科, 温志文, 等. 计及量测数据丢失的主动配电网电流保护自适应整定方法[J]. 电力系统自动化, 2022, 46(15): 145-152. Yu Lei, Jia Ke, Wen Zhiwen, et al.Adaptive setting method of over current protection in active distri-bution network considering measurement data missing[J]. Automation of Electric Power Systems, 2022, 46(15): 145-152. [16] 张森, 王慧芳, 叶睿恺. 基于分层估计的戴维南等值阻抗在线计算方法[J]. 电力系统保护与控制, 2023, 51(12): 90-98. Zhang Sen, Wang Huifang, Ye Ruikai.Thevenin equivalent impedance online calculation method based on hierarchical estimation[J]. Power System Protection and Control, 2023, 51(12): 90-98. [17] 李春彦, 李少林, 王伟胜, 等. 风电网源波动对并网点等值阻抗估计影响及电网阻抗在线辨识[J]. 电网技术, 2024, 48(6): 2376-2384. Li Chunyan, Li Shaolin, Wang Weisheng, et al.Impact analysis of wind power grid and source fluctuations on equivalent impedance estimation and grid impedance online identification[J]. Power System Technology, 2024, 48(6): 2376-2384. [18] 马静, 刘静. 基于故障稳态分量的含DG配电网自适应方向电流保护方案[J]. 电力自动化设备, 2018, 38(1): 1-9. Ma Jing, Liu Jing.Adaptive directional current protection scheme based on steady state component in distribution network with DG[J]. Electric Power Automation Equipment, 2018, 38(1): 1-9. [19] Vu K, Begovic M M, Novosel D, et al.Use of local measurements to estimate voltage-stability margin[J]. IEEE Transactions on Power Systems, 1999, 14(3): 1029-1035. [20] 张禹风, 杨淑英, 谢震, 等. 基于多正弦信号注入的大功率并网逆变器电网阻抗在线测量技术研究[J]. 中国电机工程学报, 2024, 44(10): 4026-4038. Zhang Yufeng, Yang Shuying, Xie Zhen, et al.On-line measurement of grid impedance for large capacity grid-tied inverter based on multiple-sinusoidal signal injection[J]. Proceedings of the CSEE, 2024, 44(10): 4026-4038. [21] Sobhy A, Saeed M A, Eladl A A, et al.Online estimation of thévenin equivalent using discrete Fourier transform[J]. Electric Power Systems Research, 2022, 205: 107772. [22] 李晔, 贾娜, 何佳伟, 等. 基于暂态极性比较的分布式光伏配电网快速方向判据新方法[J]. 中国电机工程学报, 2025, 45(18): 7123-7136. Li Ye, Jia Na, He Jiawei, et al.A new fast direction criterion based on transient polarity comparison for distribution networks with distributed photovoltaic access[J]. Proceedings of the CSEE, 2025, 45(18): 7123-7136. [23] 陈艺煌, 邵振国, 林俊杰, 等. 融合多源量测数据的区间型抗差谐波状态估计[J]. 电工技术学报, 2024, 39(23): 7394-7405. Chen Yihuang, Shao Zhenguo, Lin Junjie, et al.Interval harmonic robust state estimation method based on multi-source measurement data fusion[J]. Transactions of China Electrotechnical Society, 2024, 39(23): 7394-7405. [24] 李猷民, 姜建平, 菅有为, 等. 谐波对电磁式互感器测量的影响研究[J]. 电气技术, 2021, 22(2): 36-41. Li Youmin, Jiang Jianping, Jian Youwei, et al.Research on the influence of harmonics on the measurement of electromagnetic transformers[J]. Electrical Engineering, 2021, 22(2): 36-41. [25] 许飞, 董新洲, 王宾, 等. 考虑二次回路暂态传变特性的单端组合测距算法及其应用[J]. 中国电机工程学报, 2015, 35(20): 5210-5219. Xu Fei, Dong Xinzhou, Wang Bin, et al.Single-ended assembled fault location method and application considering secondary circuit transfer characteristics[J]. Proceedings of the CSEE, 2015, 35(20): 5210-5219. [26] 黄少锋. 电力系统继电保护[M]. 北京: 中国电力出版社, 2015. [27] 李雪萍, 王自力, 陈燕东, 等. 基于虚拟惯量模糊自适应的新能源逆变器频率主动支撑策略[J]. 电力系统保护与控制, 2024, 52(20): 25-37. Li Xueping, Wang Zili, Chen Yandong, et al.Active frequency support strategy for new energy inverters based on virtual inertia fuzzy adaptive control[J]. Power System Protection and Control, 2024, 52(20): 25-37. [28] 葛路明, 汤涌, 朱凌志, 等. 弱电网下逆变器的虚拟节点电压反馈控制策略[J]. 中国电机工程学报, 2024, 44(21): 8392-8406. Ge Luming, Tang Yong, Zhu Lingzhi, et al.Virtual node voltage feedback control scheme for inverter in weak grid[J]. Proceedings of the CSEE, 2024, 44(21): 8392-8406. [29] 赵仁德, 赵斌, 徐海亮, 等. 带LC滤波器的永磁同步电机控制系统及策略研究[J]. 电工技术学报, 2019, 34(增刊1): 79-86. Zhao Rende, Zhao Bin, Xu Hailiang, et al.Research on control system and strategy of permanent magnet synchronous motor with LC filter[J]. Transactions of China Electrotechnical Society, 2019, 34(S1): 79-86.
2026, Vol. 41 
