Open AccessOptimal Planning Method of Distribution Transformer Network for Seasonal Load
Author(s) -
Zhanwei Wang,
Haidong Chen,
Shiyu Deng,
Jian Wu,
Demin Li,
Jiwei Li,
Yan Xie
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1639/1/012070
Subject(s) - distribution transformer , transformer , reliability engineering , electric power distribution , voltage , computer science , voltage regulation , energy efficient transformer , low voltage , automotive engineering , mathematical optimization , engineering , electrical engineering , mathematics
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.