计及分布式电源的配电网节点脆弱性分析
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摘要
配电网作为分配电能的电力网络,随着分布式电源(distributed generation,DG)的接入,配电网变得复杂化,其安全运行问题备受关注,如何找出配电网中的薄弱节点这一问题亟待解决。为保证电力系统安全可靠运行,本文基于复杂网络理论和风险理论提出配电网节点脆弱性的综合指标,求得网络中的脆弱节点,再结合各具体指标数据,定性的分析节点具体薄弱因素,提出改进方式,改进整个网络的脆弱性,为电网工业安全带来保证。本文对于分布式电源的接入位置也有一定的指导作用,分布式电源大都为清洁能源,合理的选择接入点,可以提高电网的可靠运行以及清洁能源的利用率,减少污染排放。
Distribution network is the power network of distribution power. With the access of distributed generation(DG), the safe operation of distribution network has attracted much attention and how to find out the weak nodes in distribution network is urgent to be solved. In order to ensure the safe and reliable operation of the power system, this paper puts forward the node comprehensive indexes of the vulnerability of the distribution network based on the complex network theory and the risk theory, and obtains the fragile nodes in the network. Combined with the specific indexes, the specific weak factors of the nodes are qualitatively analyzed, and then some improvements are raised, to improve the vulnerability of the whole network and guarantee the industrial safety of power grid. This paper also has a certain guiding role for the access location of distributed power sources. Distributed power supplies are mostly clean energy, and reasonable selection of access points can improve the reliable operation of the power grid and the utilization of clean energy, which will reduce pollution emissions.
Distribution network is the power network of distribution power. With the access of distributed generation(DG), the safe operation of distribution network has attracted much attention and how to find out the weak nodes in distribution network is urgent to be solved. In order to ensure the safe and reliable operation of the power system, this paper puts forward the node comprehensive indexes of the vulnerability of the distribution network based on the complex network theory and the risk theory, and obtains the fragile nodes in the network. Combined with the specific indexes, the specific weak factors of the nodes are qualitatively analyzed, and then some improvements are raised, to improve the vulnerability of the whole network and guarantee the industrial safety of power grid. This paper also has a certain guiding role for the access location of distributed power sources. Distributed power supplies are mostly clean energy, and reasonable selection of access points can improve the reliable operation of the power grid and the utilization of clean energy, which will reduce pollution emissions.
引文
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[9]杨帆.大规模消纳可再生能源对电网脆弱性影响的评价研究[D].北京:华北电力大学(北京),2016.
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[12]Liu B,Li Z,Chen X,et al.Recognition and Vulnerability Analysis of Key Nodes in Power Grid Based on Complex Network Centrality[J].IEEE Transactions on Circuits & Systems II Express Briefs,2017,PP(99):1-1.
[13]王仁伟.基于复杂网络理论的电网建模及脆弱性研究[D].成都:西南交通大学,2015.
[14]丰皓,李华强,王羽佳,等.计及抗干扰能力和影响力的节点综合脆弱性评估方法[J].电力系统及其自动化学报,2017,29(6):90-96.
[15]李升,姜程程,赵之瑜,等.分布式光伏电站接入低压配电网系统暂态电压稳定性研究[J].电力系统保护与控制,2017,45(8):67-72.
[16]葛少云,闫常晓,刘洪,等.配电网中分布式电源的选址定容问题研究[J].电力系统及其自动化学报,2016,28(2):8-14.
[17]孟祥萍,片兆宇,张龙斌,等.基于母线间脆弱信息协调的配电网低电压风险评估[J].电网技术,2012,344(7):219-223.
[18]吴辉,彭敏放,张海艳,等.基于复杂网络理论的配电网节点脆弱度评估[J].复杂系统与复杂性科学,2017,14(1):38-45.
[2]肖盛.基于风险理论的电网脆弱性评估[D].北京:华北电力大学(北京),2011.
[3]魏震波,刘俊勇,朱国俊,等.基于可靠性加权拓扑模型下的电网脆弱性评估模型[J].电工技术学报,2010,25(8) :131-137.
[4]魏震波,刘俊勇,朱国俊,等.基于电网状态与结构的综合脆弱评估模型[J].电力系统自动化,2009,33(8):11-14.
[5]白浩.含分布式能源电网的建模及运行特性分析[D].武汉:华中科技大学,2016.
[6]周家南,苏宏升.计及负荷电压静特性的含分布式电源的前推回代潮流计算[J].电力系统保护与控制,2015,43(24):26-32.
[7]张立梅,唐巍.计及分布式电源的配电网前推回代潮流计算[J].电工技术学报,2010,25(8):123-130.
[8]芦火青.计及电能质量的分布式电源选址定容优化配置研究[D].北京:华北电力大学(北京),2016.
[9]杨帆.大规模消纳可再生能源对电网脆弱性影响的评价研究[D].北京:华北电力大学(北京),2016.
[10]Chowdhury T,Chakrabarti A,Chanda C K.Analysis of vulnerability indices of power grid integrated DG units based on complex network theory[C].India Conference.IEEE,2016:1-5.
[11]Liu C,Xu Q,Chen Z,et al.Vulnerability evaluation of power system integrated with large-scale distributed generation based on complex network theory[C].Universities Power Engineering Conference.IEEE,2012:1-5.
[12]Liu B,Li Z,Chen X,et al.Recognition and Vulnerability Analysis of Key Nodes in Power Grid Based on Complex Network Centrality[J].IEEE Transactions on Circuits & Systems II Express Briefs,2017,PP(99):1-1.
[13]王仁伟.基于复杂网络理论的电网建模及脆弱性研究[D].成都:西南交通大学,2015.
[14]丰皓,李华强,王羽佳,等.计及抗干扰能力和影响力的节点综合脆弱性评估方法[J].电力系统及其自动化学报,2017,29(6):90-96.
[15]李升,姜程程,赵之瑜,等.分布式光伏电站接入低压配电网系统暂态电压稳定性研究[J].电力系统保护与控制,2017,45(8):67-72.
[16]葛少云,闫常晓,刘洪,等.配电网中分布式电源的选址定容问题研究[J].电力系统及其自动化学报,2016,28(2):8-14.
[17]孟祥萍,片兆宇,张龙斌,等.基于母线间脆弱信息协调的配电网低电压风险评估[J].电网技术,2012,344(7):219-223.
[18]吴辉,彭敏放,张海艳,等.基于复杂网络理论的配电网节点脆弱度评估[J].复杂系统与复杂性科学,2017,14(1):38-45.
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