基于BPA对配电网无功优化的研究

Study on Reactive Power Optimization of Distribution Networks in View of BPA

对配电网无功优化中的补偿设备安装位置和补偿容量进行了研究,首先介绍了无功功率补偿的原则和方法,然后对配电网4种补偿方案进行了详细分析和对比,认为:对功率因数较低的变电站及线路应采用配电线路固定补偿方案。以河北南网某县级电网为算例,使用潮流计算软件BPA(Bonneville Power Administration)无功优化模块以及配电线路无功优化常用的"三分之二法则"进行无功优化的计算,确定了补偿设备的安装位置和补偿容量,对优化效益进行了分析。最后,给出了配电网无功优化的合理建议。

Mounting position of compensation equipment and compensation capacity in reactive power optimization of distribution networks are studied.Principles and methods for reactive power compensation are introduced first and the four compensation schemes for distribution networks are analyzed and compared in detail.It is believed that,for low power factor substations and lines,the compensation scheme of fixing the distribution lines should be adopted.Also,the county-level power system in south Hebei power networks is taken as an example and calculation of reactive power optimization is made by utilizing reactive power optimization modules of power flow calculation software BPA（Bonneville Power Administration） as well as Two-thirds rule usually used for reactive power optimization of distribution networks.The mounting position and compensation capacity of compensation equipment are determined,and optimization performance is analyzed.Finally,resonable suggestions for reactive power optimization of distribution networks are given.