A Comprehensive Evaluation Method Based on Cloud Models for Fast Switch Location Decision-Making in Short-Circuit Current Limitation Measures by Dynamic Adjustment of Topology
Liu Jiajun, Wang Zitong, Sun Ji, Lin Haokun, Li Chenjing
School of Electrical Engineering Xi’an University of Technology Xi’an 710054 China
Abstract：Fast switch location decision-making lacks a comprehensive evaluation method for short-circuit current limitation measures through dynamic topology adjustment. This paper proposes a cloud model-based comprehensive evaluation method for dynamic topology-adjusted short-circuit current limitation measures, grounded in the concept of scheme formation and evaluation. Firstly, the location selection of fast switches in substations and lines under typical wiring modes is discussed. After determining the set of fast switch location scheme sets, a comprehensive evaluation system for fast switch location decision-making is established by combining relevant influencing factors under dynamic topology adjustment for short-circuit current limitation. This system encompasses five aspects: short-circuit current, transient stability, static security, power supply reliability, and implementation cost. Secondly, the Analytic Hierarchy Process-Entropy Weight method, which combines the subjective and objective factors, is used to determine the comprehensive weight matrix of the evaluation index system. Subsequently, a cloud theory-based evaluation model is constructed. The digital feature parameters of a hierarchical cloud model are obtained for each index corresponding to the grading level. Standard evaluation cloud models are then established, and the evaluation index of the cloud correlation degree is calculated. Accordingly, the comprehensive evaluation matrix is obtained. Then, the weighted membership degrees of each location scheme set across evaluation levels are calculated by combining the weight matrix and evaluation matrix. Following the maximum membership principle, the evaluation level of each location scheme is determined. Finally, simulations using operational data from a regional power grid in China validate the effectiveness of the proposed method. The main contributions of this paper are as follows. (1) A comprehensive evaluation system for fast switch location decision-making is established, ensuring short-circuit current limitation effectiveness while holistically considering transient stability, static security, power supply reliability, and implementation costs. The proposed system enhances decision-making rationality and supports grid development. (2) The Analytic Hierarchy Process-Entropy Weight method reduces subjective bias. It ensures the rationality and reliability of indicator weights, considering both expert experience and the actual essential indicators. (3) Based on cloud theory and the quantitative criteria of each index evaluation grade, the comprehensive evaluation model can overcome the fuzziness and randomness between the quantitative index value and the evaluation grade boundary, improving the engineering applicability. (4) The simulation results demonstrate that the proposed model and method intuitively give the comprehensive evaluation results and ranking of each location scheme, which provides a basis for the decision-making and application of dynamic adjustment topology to limit the distribution of short-circuit current fast switches.
刘家军, 王紫童, 孙骥, 林皓琨, 李晨婧. 基于云模型的动态调整拓扑限制短路电流快速开关布点决策综合评价方法[J]. 电工技术学报, 2025, 40(24): 8093-8107.
Liu Jiajun, Wang Zitong, Sun Ji, Lin Haokun, Li Chenjing. A Comprehensive Evaluation Method Based on Cloud Models for Fast Switch Location Decision-Making in Short-Circuit Current Limitation Measures by Dynamic Adjustment of Topology. Transactions of China Electrotechnical Society, 2025, 40(24): 8093-8107.
[1] 段雄英, 李金金, 谢为赢, 等. 阻性隔板液态金属限流器设计与限流特性分析[J]. 电工技术学报, 2023, 38(17): 4779-4786. Duan Xiongying, Li Jinjin, Xie Weiying, et al.Design and current limiting characteristic analysis of resistive wall liquid metal current limiter[J]. Transactions of China Electrotechnical Society, 2023, 38(17): 4779-4786. [2] 邓步青, 文云峰, 于琳琳, 等. 限流器配置与网架结构优化协同的受端电网短路电流抑制策略[J]. 电力系统自动化, 2024, 48(9): 151-161. Deng Buqing, Wen Yunfeng, Yu Linlin, et al.Short- circuit current suppression strategy for receiving-end power grid based on coordination of current limiter configuration and network structure optimization[J]. Automation of Electric Power Systems, 2024, 48(9): 151-161. [3] 马奎, 王曙鸿, 姚晓飞. 110 kV变阻抗变压器短路电流首峰值限制方法[J]. 电工技术学报, 2021, 36(增刊2): 723-729, 745. Ma Kui, Wang Shuhong, Yao Xiaofei, et al.Limiting method of first peak of short-circuit current of 110 kV variable impedance transformer[J]. Transactions of China Electrotechnical Society, 2021, 36(S2): 723-729, 745. [4] 邱清泉, 肖立业, 张志丰, 等. 应用于谐振型限流器的双分裂铁心电抗器研究[J]. 电工技术学报, 2017, 32(3): 164-171. Qiu Qingquan, Xiao Liye, Zhang Zhifeng, et al.Investigation of double-splitting iron reactor used in resonant type fault current limiter[J]. Transactions of China Electrotechnical Society, 2017, 32(3): 164-171. [5] 王渝红, 杜婷, 廖建权, 等. 基于故障电流预测的柔性直流电网自适应限流策略[J]. 电力系统自动化, 2023, 47(20): 134-142. Wang Yuhong, Du Ting, Liao Jianquan, et al.Adaptive current limiting strategy for flexible DC power grid based on fault current prediction[J]. Automation of Electric Power Systems, 2023, 47(20): 134-142. [6] 李浩, 裴翔羽, 李泽文, 等. 具备故障电流限制能力的多端口直流断路器[J]. 电工技术学报, 2023, 38(10): 2818-2831. Li Hao, Pei Xiangyu, Li Zewen, et al.A multi-port DC circuit breaker with fault-current limiting capa- bility[J]. Transactions of China Electrotechnical Society, 2023, 38(10): 2818-2831. [7] 李力, 李爱民, 吴科成, 等. 广东电网短路电流超标问题分析和限流措施研究[J]. 南方电网技术, 2009, 3(增刊1): 20-24. Li Li, Li Aimin, Wu Kecheng, et al.Analysis of short- circuit current exceeding standard in Guangdong power grid and research on current limiting measures[J]. Southern Power System Technology, 2009, 3(S1): 20-24. [8] 刘兵, 李勇, 奚江惠, 等. 3/2接线变电站拉停断路器短路电流限制措施分析[J]. 电力系统自动化, 2014, 38(12): 131-135. Liu Bing, Li Yong, Xi Jianghui, et al.Analysis of pulling switch to limit short-circuit current in 3/2 wiring substation[J]. Automation of Electric Power Systems, 2014, 38(12): 131-135. [9] 郑健超. 故障电流限制器发展现状与应用前景[J].中国电机工程学报, 2014, 34(29): 5140-5148. Zheng Jianchao.Current status and application prospect of fault current limiters[J]. Proceedings of the CSEE, 2014, 34(29): 5140-5148. [10] Abramovitz A, Smedley K M.Survey of solid-state fault current limiters[J]. IEEE Transactions on Power Electronics, 2012, 27(6): 2770-2782. [11] 韩彬, 陈维江, 常乃超, 等. 基于系统拓扑动态调整的短路电流限制方法研究[J]. 电网技术, 2021, 45(3): 1158-1166. Han Bin, Chen Weijiang, Chang Naichao, et al.Short- circuit current limitation based on dynamic adjust- ment of system topology[J]. Power System Tech- nology, 2021, 45(3): 1158-1166. [12] 钟建英, 陈刚, 谭盛武, 等. 高压开关设备关键技术及发展趋势[J]. 高电压技术, 2021, 47(8): 2769-2782. Zhong Jianying, Chen Gang, Tan Shengwu, et al.Key technology and development trend of high-voltage switchgear[J]. High Voltage Engineering, 2021, 47(8): 2769-2782. [13] 杨勇, 张弛, 徐华, 等. 采用220kV快速开关的柔性短路电流抑制技术与工程实践[J]. 浙江电力, 2021, 40(4): 82-88. Yang Yong, Zhang Chi, Xu Hua, et al.Flexible short- circuit current suppression technology based on 220kV fast switch and the engineering practice[J]. Zhejiang Electric Power, 2021, 40(4): 82-88. [14] 郄鑫, 胡杰, 韩彬, 等. 基于图论的动态调整拓扑限制短路电流措施对系统可靠性影响研究[J]. 电网技术, 2024, 48(1): 334-345. Xi Xin, Hu Jie, Han Bin, et al.Study on the influence of short-circuit current limitation measures by dynamic adjustment of topology on system reliability based on graph theory[J]. Power System Technology, 2024, 48(1): 334-345. [15] 韩奕, 陈维江, 韩彬, 等. 基于系统拓扑动态调整的短路电流抑制措施对系统暂态功角稳定性的影响研究[J]. 电网技术, 2023, 47(5): 2069-2077. Han Yi, Chen Weijiang, Han Bin, et al.A study on the influence of short-circuit current suppression measures based on system topology dynamic adjustment on system transient power angle stability[J]. Power System Technology, 2023, 47(5): 2069-2077. [16] 郄鑫, 韩彬, 金玉琪, 等. 动态调整系统拓扑限制短路电流的配置方案及控制策略研究[J]. 电网技术, 2024, 48(1): 325-334. Qie Xin, Han Bin, Jin Yuqi, et al.Configuration scheme and control strategy of short-circuit current limiting by dynamic adjustment of system topology[J]. Power System Technology, 2024, 48(1): 325-334. [17] 申屠磊璇, 华文, 杨滢, 等. 220 kV快速开关的布点原则及校核方法研究[J]. 浙江电力, 2023, 42(3): 55-63. ShenTu Leixuan, Hua Wen, Yang Ying, et al. Study on the deployment principle and checking method of 220 kV fast switches[J]. Zhejiang Electric Power, 2023, 42(3): 55-63. [18] 毕皓淳, 祁琪, 刘向军, 等. 计及5G基站运行协同的分布式储能优化配置方法[J]. 电工技术学报, 2024, 39(21): 6819-6833. Bi Haochun, Qi Qi, Liu Xiangjun, et al.An optimal configuration method for distributed energy storage considering coordinated operation of 5G base station[J]. Transactions of China Electrotechnical Society, 2024, 39(21): 6819-6833. [19] 李阳, 沈小军, 杨伟新, 等. 基于运行数据的风电场风速传感器运行品质评价方法及应用[J]. 电工技术学报, 2024, 39(13): 4188-4203. Li Yang, Shen Xiaojun, Yang Weixin, et al.An operation quality evaluation method and its appli- cations for wind speed sensors of wind farms based on operation data[J]. Transactions of China Electro- technical Society, 2024, 39(13): 4188-4203. [20] 李少岩, 任乙沛, 顾雪平, 等. 基于短路电流约束显式线性建模的输电网结构优化[J]. 电工技术学报, 2020, 35(15): 3292-3302. Li Shaoyan, Ren Yipei, Gu Xueping, et al.Optimi- zation of transmission network structure based on explicit linear modeling of short circuit current constraints[J]. Transactions of China Electrotechnical Society, 2020, 35(15): 3292-3302. [21] 黄磊, 鲍颜红, 杨君军, 等. 满足安全稳定要求的限制短路电流在线辅助决策方法[J]. 南方电网技术, 2021, 15(1): 69-75. Huang Lei, Bao Yanhong, Yang Junjun, et al.On-line decision-making method for limiting short-circuit current to meet the requirements of safety and stability[J]. China Southern Power Grid Technology, 2021, 15(1): 69-75. [22] 应林志, 刘天琪, 王建全, 等. 基于改进蚁群优化限制短路电流的网架调整措施[J]. 电力系统自动化, 2018, 42(1): 144-150. Ying Linzhi, Liu Tianqi, Wang Jianquan, et al.Adjustment for power grid configuration to limit short circuit current based on improved ant colony opti- mization[J]. Automation of Electric Power Systems, 2018, 42(1): 144-150. [23] 刘文颖, 但扬清, 朱艳伟, 等. 基于电力系统分析综合程序的限流方案综合评价方法[J]. 电网技术, 2011, 35(8): 150-154. Liu Wenying, Dan Yangqing, Zhu Yanwei, et al.A power system analysis software package based comprehensive evaluation method for short-circuit current limitation strategy[J]. Power System Tech- nology, 2011, 35(8): 150-154. [24] 李名科, 钟锦星, 薛琰, 等. 基于非对称贴近度的电网短路电流限制方案决策方法[J]. 电气传动, 2024, 54(1): 75-82. Li Mingke, Zhong Jinxing, Xue Yan, et al.Decision method of short-circuit current limiting scheme of power networks based on asymmetric closeness[J]. Electric Drive, 2024, 54(1): 75-82. [25] 周启文, 朱炳铨, 刘云飞, 等. 基于拓扑动态调整的分段接线故障限流控制方案[J]. 浙江电力, 2022, 41(10): 57-63. Zhou Qiwen, Zhu Bingquan, Liu Yunfei, et al.A fault current limiting control scheme for sectionalized connection mode based on dynamic topology adjust- ment[J]. Zhejiang Electric Power, 2022, 41(10): 57-63. [26] 杨冬, 周勤勇, 刘玉田. 基于灵敏度分析的限流方案优化决策方法[J]. 电力自动化设备, 2015, 35(5): 111-118. Yang Dong, Zhou Qinyong, Liu Yutian.Short circuit current limiting strategy optimization based on sensitivity analysis[J]. Electric Power Automation Equipment, 2015, 35(5): 111-118. [27] 国家市场监督管理总局, 国家标准化管理委员会. GB 38755—2019电力系统安全稳定导则[S]. 北京: 中国标准出版社, 2019. [28] 国家能源局. DL/T 1234—2013电力系统安全稳定计算技术规范[S]. 北京: 中国电力出版社, 2013. [29] 高原. 考虑可靠性和经济性的中压配电网分段开关优化配置研究方法[J]. 电气自动化, 2023, 45(2): 88-90. Gao Yuan.Research method for optimal configuration of segmented switches in medium voltage distribution network considering reliability and economy[J]. Electrical Automation, 2023, 45(2): 88-90. [30] 竺炜, 尹军, 路广才, 等. 基于线路负载率特征的主网“源-网-荷”协调性评估[J]. 电网技术, 2022, 46(1): 265-273. Zhu Wei, Yi Jun, Lu Guangcai, et al.Main grid source-grid-load coordination evaluation based on line load rate characteristics[J]. Power System Tech- nology, 2022, 46(1): 265-273. [31] 孙琳韬, 王新环, 李学娟. 基于云模型的电压暂降严重度评估[J]. 电气工程学报, 2024, 19(2): 210-218. Sun Lintao, Wang Xinhuan, Li Xuejuan, et al. Evaluation of voltage sag severity based on cloud model[J]. Transactions of China Electrotechnical Society, 2024, 19(2): 210-218. [32] 沈进昌, 杜树新, 罗祎, 等. 基于云模型的模糊综合评价方法及应用[J]. 模糊系统与数学, 2012, 26(6): 115-123. Shen Jinchang, Du Shuxin, Luo Yi, et al.Method and application research on fuzzy comprehensive evaluation based on cloud mode[J]. Fuzzy Systems and Mathematics, 2012, 26(6): 115-123. [33] 米伟铭, 叶鹏, 张明理, 等. 基于云模型的新型配电系统灵活性评估方法[J]. 电网技术, 2024, 48(6): 2532-2540. Mi Weiming, Ye Peng, Zhang Mingli, et al.Novel flexibility evaluation for distribution systems based on cloud models[J]. Power System Technology, 2024, 48(6): 2532-2540. [34] 倪涵艺, 曾飞, 孙国强, 等. 基于q-阶正交模糊数和云模型的配电自动化系统运行状态评估[J]. 电网技术, 2024, 48(11): 4690-4698. Ni Hanyi, Zeng Fei, Sun Guoqiang, et al.Operation status evaluation of distribution automation system based on q-rung orthopair fuzzy number and cloud model[J]. Power System Technology, 2024, 48(11): 4690-4698. [35] 杜江, 孙铭阳. 基于变权灰云模型的变压器状态层次评估方法[J]. 电工技术学报, 2020, 35(20): 4306-4316. Du Jiang, Sun Mingyang.Hierarchical assessment method of transformer condition based on weight- varying grey cloud model[J]. Transactions of China Electrotechnical Society, 2020, 35(20): 4306-4316.
2025, Vol. 40 
