改进粒子群优化算法及其在电网无功分区中的应用

发布时间：2018-01-24 12:09

本文关键词： 电网无功分区电气距离粒子群优化算法社团结构　出处：《电力系统自动化》2017年03期 　论文类型：期刊论文

【摘要】：提出一种改进粒子群优化算法并将其应用于电网无功分区,以复杂网络社团结构理论为基础,建立以电气距离为权重的电力系统加权网络模型,以模块度为标准量化地评价无功分区的划分质量。改进粒子群优化算法采用了新的粒子编码方式与位置更新方式,提高了以模块度为目标函数的启发式算法的收敛速度并减少了存储空间。通过改进粒子群优化算法得到的无功网络具有较强的区域解耦特性,分区内部电气联系紧密,区域之间联系稀疏,无功分区结构合理。该算法在IEEE 39节点系统、IEEE 118节点系统及大型电网的应用结果表明了该算法的合理性及有效性。
[Abstract]:An improved particle swarm optimization (PSO) algorithm is proposed and applied to reactive power zoning of power grid. Based on the theory of complex network community structure, a weighted network model with electrical distance as weight is established. The partition quality of reactive power partition is evaluated quantificationally based on modularity. The improved particle swarm optimization (PSO) algorithm adopts new particle coding method and position updating method. The convergence speed of heuristic algorithm with modularity as the objective function is improved and the storage space is reduced. The reactive power network obtained by the improved particle swarm optimization algorithm has strong region decoupling property. This algorithm is used in the IEEE 39 bus system, and the electrical connection is close, the connection between the regions is sparse, and the reactive power partition structure is reasonable. The application results of IEEE 118-bus system and large power grid show that the algorithm is reasonable and effective.
【作者单位】：山东大学电气工程学院;国网南京供电公司;
【分类号】：TM712;TP18
【正文快照】： 上网日期:2016-11-23。0引言无功电压控制是保证电力系统安全稳定运行的重要手段。当前,针对电力系统电压控制问题,由法国电力公司提出的分层电压控制[1]方案得到广泛应用。其中,二级电压控制[2-3]利用无功就地平衡的特性,将电网划分为彼此解耦的电力系统。传统电网分区大多根

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