考虑负荷时变性的配电网故障抢修恢复策略
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摘要
针对未考虑负荷时变性求取的配电网故障抢修和恢复策略不准确的问题,该文在考虑负荷时变性和故障抢修恢复持续时间较长的基础上,对配电网多故障抢修顺序和故障恢复后网架重构优化问题进行研究。在故障抢修恢复阶段,以故障抢修完恢复负荷价值最大为目标;在故障恢复后网架重构阶段,以电压偏移量和网络损耗加权和最小为目标,采用二进制粒子群算法来求解模型。通过抢修与恢复的交替、协同,循环往复求解,得到故障抢修顺序和对应恢复策略。以改进的IEEE 69节点配电网系统进行仿真分析,结果表明:配电网故障抢修恢复应结合故障发生后负荷实际需要求解目标值,进而确定抢修顺序;抢修故障恢复后,利用故障抢修完所处时段的负荷值来网络重构优化,更符合实际、更准确。
The fault repair and recovery strategy of distribution network is not accurate without considering the time variation of load power. Considering the time variation and long time fault recovery, the rush repair order problem of distribution network fault and reconfiguration optimization problem are analyzed for the restoring network in the paper. On the stage of fault rush repair and recovery, the maximum load recovery value after repair are taken as the optimization objective. On the stage of recovery network structure, the minimum weighted sum of system voltage offset and network loss are taken as the optimization objective, and the particle swarm algorithm is then applied to achieve the optimization. The repair order and recovery strategy are obtained by the alternate, synergistic and cyclic solution of repair and recovery. Finally, a simulation is performed by the improved IEEE 69-bus system. It is shown that the distribution network fault restoration should be combined with the load actual demand to take reasonable operation. It is more realistic and accurate to network reconfiguration optimization considering time variation of load when the rush repair and recovery is completed.
The fault repair and recovery strategy of distribution network is not accurate without considering the time variation of load power. Considering the time variation and long time fault recovery, the rush repair order problem of distribution network fault and reconfiguration optimization problem are analyzed for the restoring network in the paper. On the stage of fault rush repair and recovery, the maximum load recovery value after repair are taken as the optimization objective. On the stage of recovery network structure, the minimum weighted sum of system voltage offset and network loss are taken as the optimization objective, and the particle swarm algorithm is then applied to achieve the optimization. The repair order and recovery strategy are obtained by the alternate, synergistic and cyclic solution of repair and recovery. Finally, a simulation is performed by the improved IEEE 69-bus system. It is shown that the distribution network fault restoration should be combined with the load actual demand to take reasonable operation. It is more realistic and accurate to network reconfiguration optimization considering time variation of load when the rush repair and recovery is completed.
引文
[1]杨丽君,吕雪姣,李丹,等.含分布式电源的配电网多故障抢修与恢复协调优化策略[J].电力系统自动化,2016,40(20):13-19.YANG Li-jun,LU Xue-jiao,LI Dan,et al.Coordinated optimization strategy of multi-fault repair and recovery for distribution network with distributed generators[J].Automation of Electric Power Systems,2016,40(20):13-19.
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[9]麻秀范,丁宁,李龙.配电网重构中网络辐射形与连通性的判断[J].电工技术学报,2014,29(8):289-293.Ma Xiu-fan,Ding Ning,Li Long.Judging radial and connectivity of network in distribution networks reconfiguration[J].Transactions oF China Electrotechnical Society,2014,29(8):289-293.
[10]戴志辉,崇志强,焦彦军.含分布式电源的配电网多目标供电恢复[J].电网技术,2014,38(7):1 959-1 965.DAI Zhi-hui,CHONG Zhi-qiang,JIAO Yan-jun.multi-objective service restoration of distribution network containing distributed generation[J].Power System Technology ,2014,38(7):1 959-1 965.
[11]黄弦超,杨雨,范闻博.配电网多故障抢修与供电恢复联合优化模型[J].电力系统自动化,2014,38(11):68-73.HUANG Xian-chao,YANG Yu,FAN Wen-bo.Combined optimization for maintenance scheduling and service restoration of distribution system[J].Automation of Electric Power Systems,2014,38(11):68-73.
[12]孙洁,王增平,王英男,等.含分布式电源的复杂配电网故障恢复[J].电力系统保护与控制,2014,42(2):56-62.SUN Jie,WANG Zeng-ping,WANG Ying-nan,et al.Service restoration of complex distribution system with distributed generation[J].Power System Protection and Control,2014,42(2):56-62.
[13]黄弦超.含分布式电源的配电网故障恢复模[J].电力系统保护与控制,2011,38(19):52-57.HUANG Xian-chao.Model of service restoration of distribution systems with distributed generation[J].Power System Protection and Control,2011,38(19):52-57.
[14]张海波,张晓云,陶文伟.基于广度优先搜索的配电网故障恢复算法[J].电网技术,2010,34(7):103-108.ZHANG Hai-bo,ZHANG Xiao-yun,TAO Wen-wei.A breadth-first search based service restoration algorithm for distribution network[J].Power System Technology,2010,34(7):103-108.
[15]赵晶晶,杨秀,符杨.考虑分布式发电孤岛运行方式的智能配电网供电恢复策略研究[J].电力系统保护与控制,2011,39(17):45-49.ZHAO Jing-jing,YANG Xi,FU Yang.Smart distribution system service restoration using distributed generation islanding technique[J].Power System Protection and Control,2011,39(17):45-49.
[16]Kumar Y,Das B,Sharma J.Multi objective multi constraint service restoration of electric power distribution system with priority customers[J].IEEE Transactions on Power Delivery,2008,23(1):261-270.
[17]卢志刚,王克胜.基于多代理方法的配电网故障应急抢修调度[J].电网技术,2013,37(1):137-143.LU Zhi-gang,WANG Ke-sheng.Multi-agent based rush repair scheduling for distribution networks[J].Power System Technology,2013,37(1):137-143.
[2]卢志刚,刘照拯,张晶,等.含分布式电源的配电网灾后分阶段抢修策略[J].电工电能新技术,2015,34(1):69-74.LU Zhi-gang,LIU Zhao-zheng,ZHANG Jing,et al.Staged rush repair strategy of distribution networks with distributed generators after disaster[J].Advanced Technology of Electrical Engineering and Energy,2015,34(1):69-74.
[3]孟军,汪沨,刘蓓,等.分布式发电条件下配电网故障恢复现状与展望[J].电力系统及其自动化学报,2016,28(1):46-50.MENG Jun,WANG Feng,LIU Bei,et al.Review and Prospect of Service Restoration Algorithm of Distribution Networks with Distributed Generation[J].Proceedings of the CSU-EPSA,2016,28(1):46-50.
[4]颜伟,刘方,王官洁,等.辐射型网络潮流的分层前推回代算法[J].中国电机工程学报,2003,23(8):77-81.YAN Wei,LIU Fang,WANG Guan-jie,et al.Layer-by-layerback/forw ard sweep method for radial distribution loadflow[J].Proceedings of the CSEE 2003,23(8):77-81.
[5]陈彬,王洪涛,曹曦.计及负荷模糊不确定性的网架重构后期负荷恢复优化[J].电力系统自动化,2016,40(20):6-12.CHEN Bin,WANG Hong-tao,CAO Xi.Load restoration optimization during the last stage of network reconfiguration considering load fuzzy uncertainty [J].Automation of Electric Power Systems,2016,40(20):6-12.
[6]王雨婷,张筱慧,唐巍,等.考虑光伏及负荷时变性的配电网故障恢复[J].电网技术,2016,40(9):2 706-2 716.WANG Yu-ting,ZHANG Xiao-hui,TANG Wei,et al.Fault recovery of distribution network considering time variation of photovoltaic and load [J].Power System Technology,2016,40(9):2 706-2 716.
[7]冯杰,陈骏宇,陈明军,等.基于图论的含分布式电源配电网故障恢复算法[J].中国电力,2015,48(6):63-71.FENG Jie,CHEN Jun-yu,CHEN Ming-jun,et al.Research on graph theory-based service restoration algorithm of distribution network containing distributed generation [J].Electric Power,2015,48(6):63-71.
[8]姚玉海,王增平,郭昆亚,等.基于E占优的多目标二进制粒子群算法求解配电网故障恢复[J].电力系统保护与控制,2014,42(23):76-81.YAO Yu-hai,WANG Zeng-ping,GUO Kun-ya,et al.Distribution network service restoration using a multi-objective binary particle swarm[J].Power System Protection and Control,2014,42(23):76-81.
[9]麻秀范,丁宁,李龙.配电网重构中网络辐射形与连通性的判断[J].电工技术学报,2014,29(8):289-293.Ma Xiu-fan,Ding Ning,Li Long.Judging radial and connectivity of network in distribution networks reconfiguration[J].Transactions oF China Electrotechnical Society,2014,29(8):289-293.
[10]戴志辉,崇志强,焦彦军.含分布式电源的配电网多目标供电恢复[J].电网技术,2014,38(7):1 959-1 965.DAI Zhi-hui,CHONG Zhi-qiang,JIAO Yan-jun.multi-objective service restoration of distribution network containing distributed generation[J].Power System Technology ,2014,38(7):1 959-1 965.
[11]黄弦超,杨雨,范闻博.配电网多故障抢修与供电恢复联合优化模型[J].电力系统自动化,2014,38(11):68-73.HUANG Xian-chao,YANG Yu,FAN Wen-bo.Combined optimization for maintenance scheduling and service restoration of distribution system[J].Automation of Electric Power Systems,2014,38(11):68-73.
[12]孙洁,王增平,王英男,等.含分布式电源的复杂配电网故障恢复[J].电力系统保护与控制,2014,42(2):56-62.SUN Jie,WANG Zeng-ping,WANG Ying-nan,et al.Service restoration of complex distribution system with distributed generation[J].Power System Protection and Control,2014,42(2):56-62.
[13]黄弦超.含分布式电源的配电网故障恢复模[J].电力系统保护与控制,2011,38(19):52-57.HUANG Xian-chao.Model of service restoration of distribution systems with distributed generation[J].Power System Protection and Control,2011,38(19):52-57.
[14]张海波,张晓云,陶文伟.基于广度优先搜索的配电网故障恢复算法[J].电网技术,2010,34(7):103-108.ZHANG Hai-bo,ZHANG Xiao-yun,TAO Wen-wei.A breadth-first search based service restoration algorithm for distribution network[J].Power System Technology,2010,34(7):103-108.
[15]赵晶晶,杨秀,符杨.考虑分布式发电孤岛运行方式的智能配电网供电恢复策略研究[J].电力系统保护与控制,2011,39(17):45-49.ZHAO Jing-jing,YANG Xi,FU Yang.Smart distribution system service restoration using distributed generation islanding technique[J].Power System Protection and Control,2011,39(17):45-49.
[16]Kumar Y,Das B,Sharma J.Multi objective multi constraint service restoration of electric power distribution system with priority customers[J].IEEE Transactions on Power Delivery,2008,23(1):261-270.
[17]卢志刚,王克胜.基于多代理方法的配电网故障应急抢修调度[J].电网技术,2013,37(1):137-143.LU Zhi-gang,WANG Ke-sheng.Multi-agent based rush repair scheduling for distribution networks[J].Power System Technology,2013,37(1):137-143.