【摘要】 电网分区可用于状态估计、分区控制和并行计算等领域。针对电力系统的无功优化控制分区,文章给出了一种两层搜索的方法,上层由遗传算法负责搜索各分区的第一个节点;下层根据节点间的电气距离和连通关系搜索其它节点,最终将电网划分为内部节点联系紧密的若干个子区域。由于遗传算法只搜索各分区的第一个节点,因此搜索空间大大缩小;下层搜索可自动保证子区域的连通性。分区时考虑各区域规模的平衡和无功控制设备的均衡分布。对多个IEEE系统的分区测试证明了该方法的有效性。更多还原

【Abstract】 Power network partitioning can be applied to state estimation,distributed voltage/reactive power control,parallel computation and so on.According to the optimal reactive power control partition,the authors give a two-layered partitioning method,whose upper layer searches the first node of each partition by genetic algorithm,the lower layer searches other nodes according to the electrical distance and connected relation,then the power network is divided into several sub-partitions in which the internal nodes are tightly correlated.Because genetic algorithm only searches the first node in each partition,so the searching space is greatly minified,and the connectivity of sub-partitions can be automatically ensured by the search in lower layer.During the partitioning both the balance of the scales of sub-partitions and equilibrium distribution of reactive power control equipment are considered.The simulation to several IEEE test systems shows that the proposed method is effective.更多还原