摘要
大量的分布式电源(distributed generation,DG)接入电网,改变了配电网的潮流分布,对系统网络损耗、可靠性等产生了巨大影响,研究含DG的配电网无功优化对于提高电网安全稳定与经济性能具有重要意义。因此对该课题近年所取得的研究成果进行综述,介绍了无功优化的意义和含DG的配电网多目标无功优化模型的建立,指出了含DG的配电网无功优化问题的主要难点,同时介绍了对DG出力不确定性的处理方法和多目标函数的求解方法,最后概括了现代智能优化算法在含DG的配电网无功优化中的应用,并对无功优化研究前景做了展望。
Large amount of distributed generation（DG） connecting into the power grid has changed flow distribution of the power distribution network and may produce great influence on system network losses, reliability and so on. Therefore, it is very important to study reactive power optimization for the power distribution network with DG for improving security, sta- bility and economic performance of the power grid. This paper reviews research achievements about this topic in recent years, introduces meanings of reactive power optimization and establishment of multi-objective reactive power optimization model for the power distribution network with DG, and points out main difficulties in reactive power optimization. It also introduces handling methods for uncertainty of DG output and solving methods for the multi-objective function. Finally, it generalizes application of modern intelligent optimization algorithm in reactive power optimization for the power distribution network with DG and looks forward to research prospects of reactive power optimization.
出处
《广东电力》
2017年第2期102-109,共8页
Guangdong Electric Power
关键词
分布式电源(DG)
配电网
多目标函数
无功优化
智能优化算法
distributed generation
power distribution network
multi-objective function
reactive power optimization
intel- ligent optimization algorithm
