配电网中分布式电源最优布置

基于放射状链式配电网连续解析模型和离散模型,研究了多台分布式电源装置接入系统对沿线电压和有功网损的影响.讨论了分布式电源装置安装在配电网中的优化方法以及分布式电源装置对配网电压分布的影响和其安装位置的限制.改进的最优布置算法克服了一般方法不能有效解决分布式电源装置的安装位置,以及因电压分布的要求对分布式电源安装位置产生的限制等缺点.算例表明,本文方法所求出的分布式电源最优接入位置,在满足系统电压分布情况下可有效改善有功网损.

The Optimal Layout of Distributed Generation in Distribution System

Based on general analytical model of radial distribution systems,this paper deduced voltage profile and active power loss of transmission lines.According to the analysis of the effects of distributed generation(DG) on the voltage profile and active power loss,the problem of minimizing the active power loss of distribution system with DGs was studied.The proposed algorithm can overcome the shortcomings of other analytical methods.It can not only deal with more than one DG situations but also handle the situation considering discrete load models.Two examples illustrate that when DGs' output currents are given,the algorithm can effectively calculate the optimal placement of DGs in distribution systems to minimize the active power loss.