用于网架重构决策的节点重要度动态评价方法
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摘要
针对网架重构过程中,待恢复节点的拓扑重要性随网络逐步恢复而发生变化的特点,提出一种节点拓扑重要性的动态评价指标——动态节点重要度。在重构决策中,基于当前系统恢复状态,通过将已恢复节点合并成一个等效电源点,构造包含及不包含等效电源点的2个待恢复网络,综合考虑待评价节点的收缩对2个网络的影响,计算出待评价节点的动态节点重要度指标。在此基础上,将所定义的动态节点重要度指标用于网架重构中机组恢复的路径优化问题。新英格兰10机39节点系统算例验证了所提动态节点重要度评价指标及路径优化方法的有效性。
Since the topological importance of a node to be restored changes during the network reconfiguration,a dynamic index of nodal importance is proposed to dynamically assess the topological importance of node. During the decision-making of network reconfiguration,the restored nodes are merged into an equivalent power source based on the present restoration state of system. Two networks to be restored,with and without the equivalent power source,are thus formed,the effect of node contraction for a node to be assessed on these two networks is comprehensively evaluated and the dynamic importance of that node is thus calculated. The proposed index is applied to the path optimization of unit restoration during the decision-making of network reconfiguration. New England 10-unit 39-bus system is taken as an example to verify the effectiveness of the proposed index and path optimization method.
Since the topological importance of a node to be restored changes during the network reconfiguration,a dynamic index of nodal importance is proposed to dynamically assess the topological importance of node. During the decision-making of network reconfiguration,the restored nodes are merged into an equivalent power source based on the present restoration state of system. Two networks to be restored,with and without the equivalent power source,are thus formed,the effect of node contraction for a node to be assessed on these two networks is comprehensively evaluated and the dynamic importance of that node is thus calculated. The proposed index is applied to the path optimization of unit restoration during the decision-making of network reconfiguration. New England 10-unit 39-bus system is taken as an example to verify the effectiveness of the proposed index and path optimization method.
引文
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[14]孙璞玉,张焰,罗雯清.考虑网架覆盖率与分散度的网架重构优化[J].电网技术,2015,39(1):271-278.SUN Puyu,ZHANG Yan,LUO Wenqing.Optimization of backbone network reconfiguration considering network coverage rate and dispersion degree[J].Power System Technology,2015,39(1):271-278.
[15]傅子昊,孙磊,林振智,等.基于节点重要度评价矩阵的网络重构双层优化策略[J].电力自动化设备,2016,36(5):37-42.FU Zihao,SUN Lei,LIN Zhenzhi,et al.Bi-level network reconfiguration optimization based on node importance evaluation matrix[J].Electric Power Automation Equipment,2016,36(5):37-42.
[16]刘强,石立宝,倪以信,等.电力系统恢复控制的网络重构智能优化策略[J].中国电机工程学报,2009,29(13):8-15.LIU Qiang,SHI Libao,NI Yixin,et al.Intelligent optimization strategy of the power grid reconfiguration during power system restoration[J].Proceedings of the CSEE,2009,29(13):8-15.
[17]GU Xueping,ZHONG Huirong.Optimisation of network reconfiguration based on a two-layer unit-restarting framework for power system restoration[J].Generation,Transmission&Distribution,IET,2012,6(7):693-700.
[18]李少岩,顾雪平,梁海平.给定恢复目标的扩展黑启动方案路径优选[J].电力系统自动化,2015,39(16):59-64.LI Shaoyan,GU Xueping,LIANG Haiping.Energizing path optimization for extended black-start schemes with given recovery targets[J].Automation of Electric Power Systems,2015,39(16):59-64.
[19]朱海南,刘玉田.考虑线路投入顺序的网架重构机组恢复多目标优化[J].电力系统自动化,2014,38(16):53-59.ZHU Hainan,LIU Yutian.Multi-objective optimization of units restoration during network reconstruction considering line restoration sequence[J].Automation of Electric Power Systems,2014,38(16):53-59.
[20]刘艳,张凡,顾雪平.大停电后的机组投运风险评估[J].中国电机工程学报,2013,33(31):106-113.LIU Yan,ZHANG Fan,GU Xueping.Risk assessment for restoring units following large-scale blackout[J].Proceedings of the CSEE,2013,33(31):106-113.
[21]赵达维,刘天琪,唐健.基于路径和节点权重因子的黑启动路径寻优新方法[J].电力系统自动化,2012,36(20):13-18.ZHAO Dawei,LIU Tianqi,TANG Jian.A new method for blackstart path optimization based on path and node weight factors[J].Automation of Electric Power Systems,2012,36(20):13-18.
[22]王大江,顾雪平,贾京华.一种扩展黑启动方案恢复效果的评估方法[J].电网技术,2014,38(12):3360-3365.WANG Dajiang,GU Xueping,JIA Jinghua.A method to access restoration effect of extended black-start scheme[J].Power System Technology,2014,38(12):3360-3365.
[2]薛禹胜,肖世杰.从印度大停电透视电力系统的广义阻塞[J].电力系统自动化,2012,36(16):1-8.XUE Yusheng,XIAO Shijie.Through the India’s blackout to perceive the generalized congestions in power systems[J].Automation of Electric Power Systems,2012,36(16):1-8.
[3]高翔,庄侃沁,孙勇.西欧电网“11·4”大停电事故的启示[J].电网技术,2007,31(1):25-31.GAO Xiang,ZHUANG Kanqin,SUN Yong.Lessons and enlightenment from blackout occurred in UCTE Grid on November4,2006[J].Power System Technology,2007,31(1):25-31.
[4]郭庆来,辛蜀骏,王剑辉,等.由乌克兰停电事件看信息能源系统综合安全评估[J].电力系统自动化,2016,40(5):145-147.GUO Qinglai,XIN Shujun,WANG Jianhui,et al.Comprehensive security assessment for a cyber physical energy system:a lesson from Ukraine’s blackout[J].Automation of Electric Power Systems,2016,40(5):145-147.
[5]赵俊华,梁高琪,文福拴,等.乌克兰事件的启示:防范针对电网的虚假数据注入攻击[J].电力系统自动化,2016,40(7):149-151.ZHAO Junhua,LIANG Gaoqi,WEN Fushuan,et al.Lessons learnt from the Ukrainian blackout protecting power grids against false data injection attacks[J].Automation of Electric Power Systems,2016,40(7):149-151.
[6]FINK L H,LIOU K L,LIU C C.From generic restoration actions to specific restoration strategies[J].IEEE Transactions on Power Systems,1995,10(2):745-752.
[7]刘强,石立宝,周明,等.现代电力系统恢复控制研究综述[J].电力自动化设备,2007,27(11):104-110,114.LIU Qiang,SHI Libao,ZHOU Ming,et al.Survey of power system restoration control[J].Electric Power Automation Equipment,2007,27(11):104-110,114.
[8]顾雪平,赵宝斌,刘文轩.结合多目标优化与灰色关联决策的负荷恢复方法[J].电力自动化设备,2015,35(9):6-13.GU Xueping,ZHAO Baobin,LIU Wenxuan.Load restoration based on multi-objective optimization and grey incidence decisionmaking[J].Electric Power Automation Equipment,2015,35(9):6-13.
[9]周云海,闵勇.恢复控制中的系统重构优化算法研究[J].中国电机工程学报,2003,23(4):67-70,188.ZHOU Yunhai,MIN Yong.Optimal algorithm for system reconstruction[J].Proceedings of the CSEE,2003,23(4):67-70,188.
[10]刘艳,顾雪平.基于节点重要度评价的骨架网络重构[J].中国电机工程学报,2007,27(10):20-27.LIU Yan,GU Xueping.Node importance assessment based skeleton-network reconfiguration[J].Proceedings of the CSEE,2007,27(10):20-27.
[11]林振智,文福拴.基于加权复杂网络模型的恢复路径优化方法[J].电力系统自动化,2009,33(6):11-15.LIN Zhenzhi,WEN Fushuan.A new optimization method for determining restoration paths based on weighted complex network model[J].Automation of Electric Power Systems,2009,33(6):11-15.
[12]张璨,林振智,文福拴,等.基于后悔思想的网络重构两步策略[J].电力系统自动化,2013,37(8):46-52,75.ZHANG Can,LIN Zhenzhi,WEN Fushuan,et al.A two stage strategy for network reconfiguration based on the concept of regret[J].Automation of Electric Power Systems,2013,37(8):46-52,75.
[13]朱海南.大停电后的机组恢复顺序优化研究[D].济南:山东大学,2015.ZHU Hainan.Studies on generator start-up sequence after power system major blackout[D].Ji’nan:Shandong University,2015.
[14]孙璞玉,张焰,罗雯清.考虑网架覆盖率与分散度的网架重构优化[J].电网技术,2015,39(1):271-278.SUN Puyu,ZHANG Yan,LUO Wenqing.Optimization of backbone network reconfiguration considering network coverage rate and dispersion degree[J].Power System Technology,2015,39(1):271-278.
[15]傅子昊,孙磊,林振智,等.基于节点重要度评价矩阵的网络重构双层优化策略[J].电力自动化设备,2016,36(5):37-42.FU Zihao,SUN Lei,LIN Zhenzhi,et al.Bi-level network reconfiguration optimization based on node importance evaluation matrix[J].Electric Power Automation Equipment,2016,36(5):37-42.
[16]刘强,石立宝,倪以信,等.电力系统恢复控制的网络重构智能优化策略[J].中国电机工程学报,2009,29(13):8-15.LIU Qiang,SHI Libao,NI Yixin,et al.Intelligent optimization strategy of the power grid reconfiguration during power system restoration[J].Proceedings of the CSEE,2009,29(13):8-15.
[17]GU Xueping,ZHONG Huirong.Optimisation of network reconfiguration based on a two-layer unit-restarting framework for power system restoration[J].Generation,Transmission&Distribution,IET,2012,6(7):693-700.
[18]李少岩,顾雪平,梁海平.给定恢复目标的扩展黑启动方案路径优选[J].电力系统自动化,2015,39(16):59-64.LI Shaoyan,GU Xueping,LIANG Haiping.Energizing path optimization for extended black-start schemes with given recovery targets[J].Automation of Electric Power Systems,2015,39(16):59-64.
[19]朱海南,刘玉田.考虑线路投入顺序的网架重构机组恢复多目标优化[J].电力系统自动化,2014,38(16):53-59.ZHU Hainan,LIU Yutian.Multi-objective optimization of units restoration during network reconstruction considering line restoration sequence[J].Automation of Electric Power Systems,2014,38(16):53-59.
[20]刘艳,张凡,顾雪平.大停电后的机组投运风险评估[J].中国电机工程学报,2013,33(31):106-113.LIU Yan,ZHANG Fan,GU Xueping.Risk assessment for restoring units following large-scale blackout[J].Proceedings of the CSEE,2013,33(31):106-113.
[21]赵达维,刘天琪,唐健.基于路径和节点权重因子的黑启动路径寻优新方法[J].电力系统自动化,2012,36(20):13-18.ZHAO Dawei,LIU Tianqi,TANG Jian.A new method for blackstart path optimization based on path and node weight factors[J].Automation of Electric Power Systems,2012,36(20):13-18.
[22]王大江,顾雪平,贾京华.一种扩展黑启动方案恢复效果的评估方法[J].电网技术,2014,38(12):3360-3365.WANG Dajiang,GU Xueping,JIA Jinghua.A method to access restoration effect of extended black-start scheme[J].Power System Technology,2014,38(12):3360-3365.