含分布式电源配电网启发式孤岛划分方法
首发时间:2018-05-28
摘要:提出一种基于距离权重的含分布式电源(DG)配电网启发式孤岛划分方法。这种孤岛划分方法以恢复的重要负荷最多为目标,引入距离权重来表征目标负荷与当前孤岛的距离远近,从DG节点出发,广度优先搜索依次并入距离当前孤岛最近的负荷。考虑到负荷可控性,形成的初始孤岛仅包含重要负荷和不可控负荷。然后从小到大依次并入适量可控三类负荷并进行安全运行校验。算例分析结果表明,本文提出的算法能够快速实现最优孤岛划分,验证了该方法的有效性。
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A Heuristic Algorithm on Island Partitioning of Distribution System with Distributed Generation
Abstract:A heuristic islanding algorithm based on distance-weight was proposed in this paper. This algorithm takes the maximum recovered critical load as the main target, introducing distance-weight which represents the distance between the objective load and the island, starting with DG nodes, based on BFS theory, and merging the nearest load by turn in the end. Considering the impact of controlled loads, the initial islands only contain important loads and uncontrolled loads. The ordinary controlled loads will be merged into islands in turn according to active power, followed by security assessment. Simulation results have demonstrated that the proposed algorithm can achieve optimal island partitioning quickly, which proved the effectiveness of the proposed method.
Keywords: distribution system island partitioning distributed generation distance -weight heuristic
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