Optimal Planning Method of Distribution Transformer Network for Seasonal Load. (October 2020)

• Record Type: Journal Article
• Authors: Wang, Zhanwei; Chen, Haidong; Deng, Shiyu; Wu, Jian; Li, Demin; Li, Jiwei; Xie, Yan
• Is Part Of: Journal of physics. Volume 1639(2020)
• Publication Date: 2020-10
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1639/1/012070
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Taking into account the reliability of power supply, this paper proposes an optimal planning method for distribution transformer network adapting to seasonal load in order to improve the low efficiency of equipment utilization in rural coal-to-electricity conversion areas. In this method, a bi-level programming model of distribution transformer network is constructed to minimize the overall cost. Voronoi is used to plan the distribution transformer at the upper level, Prim algorithm is used to plan the low-voltage power supply line at the lower level, and genetic algorithm is used to optimize the solution (seek the optimal solution). Finally, the feasibility of this method is verified by the planning of distribution transformer in typical power supply areas. The analysis of examples shows that the distribution transformer loss can be reduced by establishing the low-voltage tie-line between distribution transformers and the transformation of operation mode, which also provides the basis for the load transfer under the low-voltage line fault.