分布式发电环境下配电网重构的功率损耗最小化
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摘要
提出了一种以分布式发电(DG)为目标的配电网重构新方法,其目的是减小配电网的实际功率损耗和改善电压分布。采用元启发式和声搜索算法(HAS)对配电网中DG单元的最佳位置进行重新配置和识别。灵敏度分析用于确定DG装置安装的最佳位置,利用电压和支路电流承载能力构建目标函数的约束条件。该方法在IEEE-33总线径向分布系统中运用三个不同的负载水平进行测试,以证明所提出的方法的性能和有效性。
A new method of distribution network reconfiguration based on distributed generation(DG)is presented in this paper.Its purpose is to reduce actual power loss and improve voltage distribution in distribution network.The optimal location of DG unit in the distribution network is reconfigured and identified by the meta heuristic and acoustic search algorithm(HAS).The sensitivity analysis is used to determine the optimal position of the installation of the DG device,and the constraint conditions of the target function are constructed by using the voltage and the bearing capacity of the branch current.This method is tested with three different load levels in the IEEE-33 bus radial distribution system to demonstrate the performance and effectiveness of the pro-posed method.
A new method of distribution network reconfiguration based on distributed generation(DG)is presented in this paper.Its purpose is to reduce actual power loss and improve voltage distribution in distribution network.The optimal location of DG unit in the distribution network is reconfigured and identified by the meta heuristic and acoustic search algorithm(HAS).The sensitivity analysis is used to determine the optimal position of the installation of the DG device,and the constraint conditions of the target function are constructed by using the voltage and the bearing capacity of the branch current.This method is tested with three different load levels in the IEEE-33 bus radial distribution system to demonstrate the performance and effectiveness of the pro-posed method.
引文
[1]杜宗林,陈明照,刘军志.配电网电能准确计量方法研究[J].电子测试,2016,(20):53—55.
[2]许津铭,谢少军,张斌锋.分布式发电系统中LCL滤波并网逆变器电流控制研究综述[J].中国电机工程学报,2015,35(16):4153—4166.
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[4]毛文晋,李红伟,李超.一种考虑DG出力优化分配的配电网重构方法[J].电力系统保护与控制,2017,45(13):57—63.
[5]杨智豪,牟龙华,刘仲.微电网黑启动中考虑DG特性与线路投入顺序的串行恢复策略[J].电力系统保护与控制,2016,44(18):17—23.
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[8]张曙云,匡洪海,唐婷媛,等.农村配电网无功补偿最佳优化配置[J].电源学报,2016,(12):1—11.
[9]张世翔,田琴丹.上网电价及DG补贴对微电网调度结果的灵敏度分析[J].中国电力,2016,49(04):174—180.
[10]孙银锋,吴学光,汤广福,等.基于节点阻抗矩阵GS法的直流电网稳态潮流计算[J].中国电机工程学报,2015,35(08):1882—1892.
[11]欧阳海滨,高立群,邹德旋,等.和声搜索算法探索能力研究及其修正[J].控制理论与应用,2014,31(01):57—65.
[12]陈春,汪沨,刘蓓,等.基于基本环矩阵与改进和声搜索算法的配电网重构[J].电力系统自动化,2014,38(06):55—60.
[13]荣德生,韩淑敏.配电网重构的自适应和声搜索算法[J].中国电力,2015,48(04):131—136.
[14] RAO R S,NARASIMHAM S V L,RAJU M R,et al.Optimal network reconfiguration of large-scale distribution system using harmony search algorithm[J].IEEE Transactions on Power Systems,2011,26(3):1080—1088.
[15]付丽伟,王守相,张永武,等.多类型分布式电源在配电网中的优化配置[J].电网技术,2012,36(01):79—84.
[16]李振坤,刘俊,杨帆,等.有源配电网的综合供电恢复及改进遗传算法[J].电力系统保护与控制,2014,42(17):24—30.
[17]贾东强,韦统振,霍群海.DSTATCOM交直流控制回路交互影响分析[J].电工技术学报,2013,28(2):324—330.
[2]许津铭,谢少军,张斌锋.分布式发电系统中LCL滤波并网逆变器电流控制研究综述[J].中国电机工程学报,2015,35(16):4153—4166.
[3]黄峥.面向智能电网的继电保护系统重构研究[J].电子测试,2016,(20):93+92.
[4]毛文晋,李红伟,李超.一种考虑DG出力优化分配的配电网重构方法[J].电力系统保护与控制,2017,45(13):57—63.
[5]杨智豪,牟龙华,刘仲.微电网黑启动中考虑DG特性与线路投入顺序的串行恢复策略[J].电力系统保护与控制,2016,44(18):17—23.
[6]施泉生,陆亚南.基于图论的配电网孤岛连通性判别[J].中国电力,2016,49(06):141—145.
[7]杨婷,赵晋泉,韩佳兵,等.计及主网潮流响应的主动配电网故障恢复研究[J].电网与清洁能源,2017,33(05):51—56.
[8]张曙云,匡洪海,唐婷媛,等.农村配电网无功补偿最佳优化配置[J].电源学报,2016,(12):1—11.
[9]张世翔,田琴丹.上网电价及DG补贴对微电网调度结果的灵敏度分析[J].中国电力,2016,49(04):174—180.
[10]孙银锋,吴学光,汤广福,等.基于节点阻抗矩阵GS法的直流电网稳态潮流计算[J].中国电机工程学报,2015,35(08):1882—1892.
[11]欧阳海滨,高立群,邹德旋,等.和声搜索算法探索能力研究及其修正[J].控制理论与应用,2014,31(01):57—65.
[12]陈春,汪沨,刘蓓,等.基于基本环矩阵与改进和声搜索算法的配电网重构[J].电力系统自动化,2014,38(06):55—60.
[13]荣德生,韩淑敏.配电网重构的自适应和声搜索算法[J].中国电力,2015,48(04):131—136.
[14] RAO R S,NARASIMHAM S V L,RAJU M R,et al.Optimal network reconfiguration of large-scale distribution system using harmony search algorithm[J].IEEE Transactions on Power Systems,2011,26(3):1080—1088.
[15]付丽伟,王守相,张永武,等.多类型分布式电源在配电网中的优化配置[J].电网技术,2012,36(01):79—84.
[16]李振坤,刘俊,杨帆,等.有源配电网的综合供电恢复及改进遗传算法[J].电力系统保护与控制,2014,42(17):24—30.
[17]贾东强,韦统振,霍群海.DSTATCOM交直流控制回路交互影响分析[J].电工技术学报,2013,28(2):324—330.