快速实用的配电网电容器优化投切算法  

An Efficient Algorithm for Capacitor Switching in Distribution Network

作　　者：王威[1] 韩学山[2] 车仁飞[2] 许星明[1] 

机构地区：[1]山东科技大学机电工程系,山东省泰安市271019 [2]山东大学电气工程学院,山东省济南市250061

出　　处：《电网技术》2010年第5期99-103,共5页Power System Technology

摘　　要：利用深度优先搜索算法将配电网分解为多棵局部树,在局部树中采用无功就地平衡原则缩小了电容器投切的解空间,并取损耗最小方案为优化方案。由于局部树组中局部树根节点的处理与实际情况不符,提出通过增加部分电容器投入组数来快速优化局部树组的方法。局部树和局部树组优化过程中采用了前推回推法计算系统潮流,保证了算法的快速收敛。以IEEE69节点和409节点网络为算例,验证了该方法的有效性。Utilizing depth-first search algorithm, the radial distribution network is divided into many local trees, and applying the principle of spot reactive power balance to local trees the solution space of capacitor switching is minified, then the scheme with minimum loss is taken as the optimization scheme. Considering the fact that in local array the processing of local trees＇ root nodes does not conform to practical conditions, a method of rapidly optimizing local array by increasing partial capacitor banks to be switched-in is proposed. During the optimization of local trees and local arrays the system load flow is calculatedty backward/forward sweep method to ensure the rapid convergence of the proposed algorithm. Simulation results of IEEE 69-bus system and IEEE 409-bus system show that the proposed algorithm is effective.

关 键 词：配电网 电容器优化投切 深度优先搜索算法 局部树 前推回推法 无功就地平衡 

分 类 号：TM726[电气工程—电力系统及自动化]