基于空间聚类的中压配电网网格优化划分方法

Optimal Grid Division Method for Medium-voltage Distribution Network Based on Spatial Clustering

网格化规划方法是解决城市配电网由于缺乏面向远景的、持续和一贯的目标网架及其过渡过程而导致线路接线混乱、无序、联络复杂等问题的有效技术手段。网格的科学合理划分是网格化规划中必须首先解决的关键问题。然而,目前网格的划分仍依赖规划人员的主观经验或笼统的技术原则,不仅工作量巨大,而且难以满足技术经济性和方案合理性。为此,在构建网格划分综合评价指标体系的基础上,提出了基于空间聚类算法的网格优化划分数学模型及其求解方法,为进一步推进网格化规划的工程应用奠定了基础。基于实际区域配电网的算例分析验证所提模型和算法的有效性。

The gridding planning method is an effective technical method for solving the problems that the lines are confused, disordered and connected complexly because the urban distribution network planning lacks of perspective, continuous and con-sistent target grid and its transition process. The reasonable grid division is the key problem that must be solved firstly in grid- ding planning. However, the current grid division still depends on subjective experiences of the planning staff or general tech-nical principles, which leads to huge workload and makes the planning not meet the economic efficiency and rationality. So the grid division evaluation index system is constructed. On this basis, the mathematical model of optimal grid division and its so-lutions based on spatial clustering is proposed for advancing engineering application of gridding planning. The validity of the proposed model and its solutions are verified with a case of actual distribution network.