摘要
为解决分布式电源(Distributed Generation,DG)不恰当地接入配电网导致的电能质量问题,提出一种利用梯度方法进行分布式电源选址定容的方法。首先,将基于单相Zbus矩阵的总网损及其偏导公式推广应用到三相配电网系统中。其次,以IEEE 33节点系统为例,通过分析有功网损函数的单调性与凸性,以有功网损最小化为目标函数,构建梯度算法求解配电网分布式电源最优选址定容问题。仿真结果表明,利用所提方法可以获得更优的结果。
Improper grid connection of Distributed Generations(DG)will lead to severe power quality problems.An algorithm to solve site selection and capacity determination of DG using gradient method was proposed.Firstly,the grid loss and its partial derivative equations based on single-phase Zbus matrix were extended and applied to three-phase electricity system.Secondly,by using the standard IEEE 33-bus system,analyzing the monotonicity and convexity of the active grid loss function,an improved gradient algorithm was implemented to optimize sizing and placement of DG in distribution network to minimize the active grid loss.The simulation results implied that the proposed algorithm could obtains better results.
作者
陈逸峰
熊军华
郑炳校
CHEN Yifeng;XIONG Junhua;ZHENG Bingxiao(School of Electric Power,North China University of Water Resources and Electric Power,Zhengzhou Henan 450045,China)
出处
《信息与电脑》
2023年第12期16-19,共4页
Information & Computer
基金
2019年国家自然科学基金项目“基于知识自动化理论的变电站健康运行方法研究”(项目编号:U1804149)。
关键词
Zbus矩阵
分布式电源
配电网
梯度法
Zbus matrix
distributed power supply
distribution network
gradient method
作者简介
陈逸峰(1998-),男,浙江杭州人,硕士研究生。研究方向:分布式电源并网技术。
