摘要
针对分布式电源并网运行配电网潮流及电压主要与其安装位置和容量有关的问题,基于功率圆和支路权值的概念,提出了一种新的分布式电源选址和定容方法,以改善电压水平和降低网损为目标函数,并考虑了支路功率的约束条件,同时可兼顾重要负荷的供电可靠性要求。算例分析结果表明,该方法可行,能得到分布式电源在配电网中的合理配置方案。
The influence to voltage and power flow of distribution network on grid-connected distributed generation （DG） is mainly related to DG site and capacity. Based on the concept of power circle and branch weight, this paper puts forward a new method for site selection and capacity determination of DG. This method takes voltage improving and grid- loss reduction as objective function and considers branch power constraint. It also gives consideration to power supply reliability of essential load. Through practical case analysis, it proves that this method is feasible, which can achieve reasonable configuration scheme of DG in distribution network.
出处
《水电能源科学》
北大核心
2012年第3期180-183,80,共5页
Water Resources and Power
关键词
分布式电源
配电网
选址和定容
功率圆
支路权值
distributed generation
distribution network
site selection and capacity determination
power circle
branch weight
