摘要
分布式电源大量接入对电网安全稳定运行的影响是当前热点研究问题。基于复杂网络理论研究大电网中分布式电源布点优化选择。首先,结合负荷差异性建立复杂网络体系下的节点供电效率指标;其次,引入基尼系数并考虑电网总体线路潮流负载率特性建立电网整体脆弱性评价指标;最后,以IEEE39节点及IEEE118节点系统为例,研究分布式电源不同布点情况下电网大规模停电风险,验证了该方法的合理性和有效性。
Impacts from massive accessing of distributed generation （DG） to the security and stability of the power grid are hot topics currently.The optimized choice of DG connection points based on complex network theory is introduced.First,power efficiency of each node under complex network is built with load difference considered.Then,vulnerability evaluation of the whole power grid is built with Gini coefficient introduced and load flow rate characteristics considered.Finally,take IEEE 39 and IEEE 188 node system as example,large scale blackout risk under different access location of DG is studied,and thus the rationality and validity of the method is confirmed.
作者
邓春兰
过羿
肖遥
刘流
DENG Chunlan;GUO Yi;XIAO Yao;LIU Liu(Department of Urban Rail Communications and Information Engineering, Anhui Vocational and Technical College of Communications, Hefei 230051, China;State Grid Anhui Maintenance Co., Ltd., Hefei 230061, China;Economie Technology Institute of State Grid Anhui Province Electric Co.,Ltd., Hefei 230071, China)
出处
《山东电力技术》
2018年第5期40-44,共5页
Shandong Electric Power
关键词
分布式电源
复杂网络
电源布点
连锁故障
基尼系数
distributed generation
complex network
DG access location
cascading failures
Gini coefficient
