摘要
为了降低大量分布式电源接入配电网造成的电网潮流的不确定性,提出一种能够用于配合主网功率调度的配电网分布式电源控制策略。该策略可以实现主网对配电网在公共连接点处注入的有功和无功功率对给定参考值的跟踪,从而使整个配电网等效为可控的功率节点,使配电网具有一定的功率调度性能。同时,具有分布式电源间有功功率的分担以及平衡各分布式电源并网点处的电压的特性。该策略采用分布式一致性算法,只依赖邻居节点间的通信,不需要系统的全局信息。还给出配电网分布式电源通过控制无功实现电压平衡的阻抗条件。策略的有效性通过仿真得到了验证。
In order to reduce the power flow uncertainty of the utility grid caused by the increasing penetration of distributed generations in distribution networks,this paper proposed a utility grid cooperation control strategy for distributed generations.The strategy can make the active and reactive power injection of the distribution network’s common coupling point regulate the given references,such that the distribution network can be considered as a controllable PQ node.Meanwhile,the strategy can do active power sharing and output voltage balancing among distributed generations.The strategy is based on distributed consensus algorithms.It only relies on the communication among neighboring generations and no global information is required.Moreover,this paper gave the application condition of voltage balancing control by controlling distributed generations’reactive power output.The effectiveness of the proposed strategy was verified by simulation studies.
作者
杨振铨
项基
李艳君
YANG Zhenquan;XIANG Ji;LI Yanjun(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,Zhejiang Province,China;School of Information and Electrical Engineering,Zhejiang University City College,Hangzhou 310027,Zhejiang Province,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2019年第11期3176-3186,共11页
Proceedings of the CSEE
基金
国家重点研发计划项目(2016YFB0900605)
国家自然科学基金项目(61573314,61773339)~~
关键词
分布式控制
配电网
分布式电源
能量管理
一致性算法
功率分担
电压平衡
distributed control
distribution network
distributed generations
power management
consensus algorithm
power sharing
voltage balancing
