董炜,王健,李常刚,华文,陆翌,程颖
DONG Wei,WANG Jian,LI Changgang,HUA Wen,LU Yi,CHENG Ying

• 1:国网浙江省电力有限公司电力科学研究院
• 2:电网智能化调度与控制教育部重点实验室(山东大学)

摘要(Abstract)：

随着电网规模的扩大和电源数目的增加，电力系统短路电流超标问题日益严重，常规短路电流控制措施越来越难以满足短路电流控制的要求。为了降低短路电流控制对电网产生的影响，提出了一种综合考虑新能源参数调整、停运线路和机组等多种控制措施的短路电流协调优化控制方法。考虑到控制措施对电网供电能力以及无功电压的影响，设计多优化目标，构建考虑多种约束条件的混合整数规划模型。对控制模型进行线性化处理，提出两阶段求解策略，以常规控制措施为主，新能源参数调整控制措施为辅，解决短路电流超标问题并提升短路电流安全运行裕度。通过省级区域电网算例仿真，验证了所提短路电流控制模型和求解方法的有效性。
With the expansion of power grids and the increase in power sources, excessive short-circuit current in power systems has become increasingly severe. Conventional short-circuit current control measures are increasingly inadequate to meet the requirements. To mitigate the impact of short-circuit current control on the grid, this paper proposes a coordinated optimal control method that comprehensively considers various measures, including renewable energy parameter adjustment, line outages, and unit decommitment. In view of the effects of control measures on grid power supply capacity and reactive voltage, multiple optimization objectives are designed, and a mixedinteger programming model incorporating various constraints is constructed. The control model is linearized, and a two-stage solution strategy is proposed, prioritizing conventional control measures supplemented by new energy parameter adjustment, to resolve short-circuit current exceedances and enhance the safety margin for short-circuit current operation. The effectiveness of the proposed short-circuit current control model and solution method is verified through a case study on a provincial-level regional power grid.

关键词(KeyWords)： 短路电流;新能源;日前控制;供电能力
short-circuit current;renewable energy sources;day-ahead control;power supply capability

Abstract:

Keywords:

基金项目(Foundation): 国家电网有限公司科技项目（5100-202319032A-1-1-ZN）

作者(Author): 董炜,王健,李常刚,华文,陆翌,程颖
DONG Wei,WANG Jian,LI Changgang,HUA Wen,LU Yi,CHENG Ying

DOI: 10.19585/j.zjdl.202601001

参考文献(References)：

• [1]李晖，刘栋，姚丹阳.面向碳达峰碳中和目标的我国电力系统发展研判[J].中国电机工程学报，2021,41(18):6245-6259.LI Hui,LIU Dong,YAO Danyang.Analysis and reflection on the development of power system towards the goal of carbon emission peak and carbon neutrality[J]. Proceedings of the CSEE,2021,41(18):6245-6259.
• [2]龚俊祥，徐有琳，张菁，等.新型电力系统下配电网网络结构研究[J].山东电力技术，2024,51(1):45-51.GONG Junxiang,XU Youlin,ZHANG Jing,et al. Research on the network structure of new power system distribution network[J].Shandong Electric Power,2024,51(1):45-51.
• [3]任蔷，陈洁羽，邓俊，等.计及网侧变流器的双馈感应发电机稳态短路电流实用计算方法研究[J].电力电容器与无功补偿，2024,45(4):141-148.REN Qiang,CHEN Jieyu,DENG Jun,et al.Research on practical calculation method of steady-state short circuit current of doubly fed induction generator considering grid side converter[J]. Power Capacitor&Reactive Power Compensation,2024,45(4):141-148.
• [4]陈怡静，李春华，李英彪，等.双闭环VF控制MMC输出短路电流特性分析与计算方法[J].电力建设，2024,45(10):90-99.CHEN Yijing,LI Chunhua,LI Yingbiao,et al. Shortcircuit current characteristics analysis and calculation methods of modular multilevel converter in double closed-loop voltage-frequency control[J]. Electric Power Construction,2024,45(10):90-99.
• [5]邱琦琦，管霖，郑外生，等.高负荷密度区域电网短路电流水平与源-网-荷结构的耦合关系量化研究[J/OL].中国电机工程学报，2024:1-17.(2024-10-28)[2025-03-24].https：//link. cnki. net/urlid/11.2107. tm. 20241028.0951.002.QIU Qiqi,GUAN Lin,ZHENG Waisheng,et al.Quantitative research on the coupling relationship between short circuit current level and source-grid-load structure in high load density regional power grid[J/OL].Proceedings of the CSEE,2024:1-17.(2024-10-28)[2025-03-24]. https：//link.cnki.net/urlid/11.2107.tm.20241028.0951.002.
• [6]郄鑫，文韬，韩彬，等.考虑变电站内接线和拓扑瞬态调整的断路器短路电流分析[J].电力建设，2024,45(7):113-121.QIE Xin,WEN Tao,HAN Bin,et al. Analysis of shortcircuit current of circuit breakers considering substation wiring and topology transient adjustment[J]. Electric Power Construction,2024,45(7):113-121.
• [7]艾琳，冯艳虹，陈为化，等.特高压接入京津冀北500 kV电网短路电流问题及限流措施研究[J].电力系统保护与控制，2017,45(9):133-137.AI Lin,FENG Yanhong,CHEN Weihua,et al.Research on short-circuit current problem and limiting measures caused by UHV substation connecting to 500 kV network in Beijing-Tianjin Area and Northern Hebei[J]. Power System Protection and Control,2017,45(9):133-137.
• [8]华浩丞，刘天琪，何川，等.计及机组启停与线路投切显式短路电流约束的电力系统日前优化调度[J].中国电机工程学报，2022,42(5):1724-1736.HUA Haocheng,LIU Tianqi,HE Chuan,et al.Day-ahead optimal scheduling of power system considering explicit short-circuit current constraints with the impact of commitment of units and transmission switching[J].Proceedings of the CSEE,2022,42(5):1724-1736.
• [9]张永康，蔡泽祥，李爱民，等.限制500 kV电网短路电流的网架调整优化算法[J].电力系统自动化，2009,33(22):34-39.ZHANG Yongkang,CAI Zexiang,LI Aimin,et al.An optimization algorithm for short-circuit current limitation of500 kV power grid by adjusting power grid configuration[J]. Automation of Electric Power Systems,2009,33(22):34-39.
• [10]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.QIE Xin,HU Jie,HAN Bin,et al.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.
• [11]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. Shortcircuit 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.
• [12]杨欢欢，杨君军，徐伟，等.互联电网短路电流在线分析与优化决策方法[J].电网技术，2024,48(5):2218-2226.YANG Huanhuan,YANG Junjun,XU Wei,et al.Online analysis and optimal decision-making of short-circuit current in interconnected power grids[J]. Power System Technology,2024,48(5):2218-2226.
• [13]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. Online decision-making method for limiting short-circuit current to meet the requirements of safety and stability[J].Southern Power System Technology,2021,15(1):69-75.
• [14]韩西坪，同向前，卢志，等.变流器型分布式电源的短路电流响应特性[J].电工电能新技术，2017,36(7):28-33.HAN Xiping,TONG Xiangqian,LU Zhi,et al. Shortcircuit current characteristics of inverter based distributed generators[J]. Advanced Technology of Electrical Engineering and Energy,2017,36(7):28-33.
• [15]贾科，侯来运，毕天姝，等.基于故障区域局部迭代的工程实用化新能源短路电流计算[J].电力系统自动化，2021,45(13):151-158.JIA Ke,HOU Laiyun,BI Tianshu,et al. Practical engineering calculation of short-circuit current for renewable energy based on local iteration of fault area[J]. Automation of Electric Power Systems,2021,45(13):151-158.
• [16]国家质量监督检验检疫总局，中国国家标准化管理委员会.光伏发电站接入电力系统技术规定：GB/T 19964—2024[S].北京：中国标准出版社，2024.
• [17]国家质量监督检验检疫总局，中国国家标准化管理委员会.风电场接入电力系统技术规定第1部分：陆上风电：GB/T 19963.1—2021[S].北京：中国标准出版社，2021.
• [18]国家电网公司.分布式电源接入电网技术规定：Q/GDW1480—2015[S].北京：国家电网公司，2016.
• [19]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 adjustment of system topology[J].Power System Technology,2021,45(3):1158-1166.
• [20]荆朝霞，江昌旭，王宏益.考虑N-1安全约束的220 kV片区电网最大供电能力计算[J].电力系统自动化，2016,40(19):145-152.JING Zhaoxia,JIANG Changxu,WANG Hongyi. Total supply capability calculation of 220 kV area power grid considering N-1 security constraint[J]. Automation of Electric Power Systems,2016,40(19):145-152.
• [21]戴玉臣，徐伟，华文，等.计及源网荷交互影响的区域电网热稳安全供电区间计算方法[J].电力自动化设备，2023,43(2):178-183.DAI Yuchen,XU Wei,HUA Wen,et al. Calculation method of thermal stability secure power supply interval considering source-grid-load interaction[J].Electric Power Automation Equipment,2023,43(2):178-183.