配网重构与电容配置的改进模型及优化算法

发布时间：2018-08-23 21:42

【摘要】：为降低配电网中无功功率损耗,提高电压质量和保持网络的稳定性,提出了一种配网重构与电容器配置的改进模型和优化算法,即以网损最小为目标函数,运用正倒向随机潮流法进行潮流计算,并对二进制粒子群算法进行改进,克服了先前迭代的粒子信息难以传递至下一次迭代以及粒子位置更新结果不准确的缺陷,从而实现对配网重构和电容配置的同步优化.在IEEE 16节点配电网系统上运行和测试,找到最优重构和配置的方法,并在MATLAB R2010软件环境中编写算法进行仿真计算,比较5种不同优化方案.研究结果表明,该算法每次迭代计算更新了全局最优和个体最优,可获得全局最佳的网络状态,与其对应的电压分布和功率损失也达到最佳.
[Abstract]:In order to reduce reactive power loss, improve voltage quality and maintain network stability, an improved model and optimization algorithm for distribution network reconfiguration and capacitor configuration is proposed, which takes the minimum loss as the objective function. The forward backward stochastic power flow method is used to calculate the power flow, and the binary particle swarm optimization algorithm is improved, which overcomes the defect that the particle information of the previous iteration is difficult to transmit to the next iteration and the update result of particle position is inaccurate. Thus, the synchronous optimization of distribution network reconfiguration and capacitance configuration is realized. The method of optimal reconfiguration and configuration is found by running and testing on IEEE 16-bus distribution network system. The algorithm is written in MATLAB R2010 software environment to simulate and calculate, and five different optimization schemes are compared. The results show that the algorithm updates the global optimal and individual optimal for each iteration, and obtains the global optimal network state, and the corresponding voltage distribution and power loss are also optimal.
【作者单位】：江苏大学电气信息工程学院;
【基金】：江苏省自然科学基金资助项目(BK2012707) 江苏省“六大人才高峰”项目(2011-ZZ026) 江苏高校优势学科建设工程项目(苏政办发[2011]6号)
【分类号】：TM727

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