基于脆弱度分层的微电网分级优化动态重构Hierarchical Optimization Method for Microgrid Dynamic Reconstruction Based on Vulnerability Stratification
李咸善;鲁伦;徐浩;张晋维;方婧;陈铁;范雨萌;易茗;
摘要(Abstract):
根据微电网的特点,提出将微电网功率可调节裕度指标引入到微电网综合脆弱度指标之中,建立了更为完善的微电网脆弱度指标体系,使其更能反映当前微电网的稳定状态;并将微电网重构须遵循的组网规则以组网约束的形式引入到动态重构的约束条件之中,使得重构后的微电网更具有可运行性;针对孤岛运行的微电网,提出了基于脆弱度分层的微电网分级优化动态重构策略。根据当前微电网脆弱度大小所反映的微电网安全稳定状态的轻重缓急,将微电网重构按照经济性重构、稳定经济性重构和紧急稳定性重构分为三个层次,每层侧重于不同的优化目标,有利于确保系统安全性的基础上提高系统运行的经济性;为提高重构的实时性,提出了基于约束条件分级的优化方法,并应用到每一层重构的优化过程之中,先行处理不涉及潮流计算的约束判断,使得只有满足先行级约束的方案进入后续级优化,可大大减少计算量。算例结果验证了所提方法的有效性。
关键词(KeyWords): 微电网;动态重构;脆弱度;分层重构;分级优化
基金项目(Foundation): 国家自然科学基金项目(51277110);; 湖北省自然科学基金计划重点项目(2016CFA097)~~
作者(Author): 李咸善;鲁伦;徐浩;张晋维;方婧;陈铁;范雨萌;易茗;
Email:
DOI: 10.13335/j.1000-3673.pst.2017.2965
参考文献(References):
- [1]Xu T,Chen J,He Y,et al.Complex network properties of Chinese power grid[J].International Journal of Modern Physics B,2004,18(17/18/19):2599-2603.
- [2]Crucitti P,Latora V,Marchiori M.A topological analysis of the Italian electric power grid[J].Physics A,2004,338(1):92-97.
- [3]田昊,吕林,高红均,等.计及电网运行特性的配电网动态重构[J].电力系统保护与控制,2015,43(1):9-14.Tian Hao,LüLin,Gao Hongjun,et al.Dynamic reconfiguration of distribution network considering power grid operation characteristic[J].Power System Protection and Control,2015,43(1):9-14(in Chinese).
- [4]张珂,吕林,孙宇乐.基于隶属度时段划分的配电网动态重构[J].电力系统保护与控制,2016,44(3):51-57.Zhang Ke,LüLin,Sun Yule.Dynamic reconfiguration of distribution network based on membership partition of time intervals[J].Power System Protection and Control,2016,44(3):51-57(in Chinese).
- [5]王淳,高元海.采用最优模糊C均值聚类和改进化学反应算法的配电网络动态重构[J].中国电机工程学报,2014,34(10):1682-1691.Wang Chun,Gao Yuanhai.Dynamic reconfiguration of distribution network based on optimal fuzzy C-means clustering and improved chemical reaction optimization[J].Proceedings of the CSEE,2014,34(10):1682-1691(in Chinese).
- [6]陈为化,江全元,曹一家,等.基于风险理论的复杂电力系统脆弱性评估[J].电网技术,2005,29(4):12-17.Chen Weihua,Jiang Quanyuan,Cao Yijia,et al.Risk-based vulnerability assessment in complex power systems[J].Power Syetem Technology,2005,29(4):12-17(in Chinese).
- [7]王安斯.基于事故链的电网脆弱性评估与稳定控制[D].武汉:华中科技大学,2010.
- [8]李勇,刘俊勇,刘晓宇,等.基于潮流熵的电网连锁故障传播元件的脆弱性评估[J].电力系统自动化,2012,36(19):11-16.Li Yong,Liu Junyong,Liu Xiaoyu,et al.Vulnerability assessment in power grid cascading failures based on entropy of power flow[J].Automation of Electric Power Systems,2012,36(19):11-16(in Chinese).
- [9]曹一家,陈小刚,孙可,等.基于复杂网络理论的大型电力系统脆弱线路辨识[J].电力自动化设备,2006,26(12):1-5,31.Cao Yijia,Chen Xiaogang,Sun Ke,et al.Identification of vulnerable lines in power grid based on complex network theory[J].Electric Power Automation Equipment,2006,26(12):1-5,31(in Chinese).
- [10]马志远,刘锋,沈沉,等.基于Page Rank改进算法的电网脆弱线路快速辨识(一):理论基础[J].中国电机工程报,2016,26(23):6363-6370,6601.Ma Zhiyuan,Liu Feng,Sheng Chen,et al.Rapid identification of vulnerable lines in power grid using modified page rank algorithm-Part I:theoretical foundation[J].Proceedings of the CSEE,2016,26(23):6363-6370,6601(in Chinese).
- [11]张海翔,吕飞鹏.基于保护脆弱度加权拓扑模型下的电网脆弱性评估[J].中国电机工程学报,2014,34(4):613-619.Zhang Haixiang,LüFeipeng.The vulnerability evaluation model of power grid based on the protection vulnerability-weighted topological model[J].Proceedings of the CSEE,2014,34(4):613-619(in Chinese).
- [12]詹昕,向铁元,陈红坤,等.基于搜索矢量拟态物理学算法的微电网脆弱度评估及重构[J].电工技术学报,2014,29(2):75-81.Zhan Xin,Xiang Tieyuan,Chen Hongkun,et al.Vulnerability assessment and reconfiguration of micro gridbased on search vector artificial physics optimization Algorithm[J].Transactions of China Electrotechnical Society,2014,29(2):74-81(in Chinese).
- [13]詹昕,向铁元,陈红坤.微电网加权熵变脆弱性评估及实时重构[J].电网技术,2014,38(2):361-367.Zhan Xin,Xiang Tieyuan,Chen Hongkun.Vulnerability assessment and real time reconfiguration of microgrid based on weighted entropy theory[J].Power System Technology,2014,38(2):361-367(in Chinese).
- [14]李咸善,徐浩,邹芳,等.微电网分级优化故障重构[J],中国电机工程学报,2015,35(24):6379-6385.Li Xianshan,Xu Hao,Zou Fang,et al.Micro-grid hierarchical optimization fault reconstruction[J].Proceedings of the CSEE,2015,35(24):6378-6386(in Chinese).
- [15]Lasseter R H,Akhil,A Marnay C,et al.Integration of distributed energy resources:the CERTS micro-grid concept[R].USA:Consortium for Electric Reliability Technology Solutions,2002.