中文摘要：

为了有效解决城市经济高速发展过程中面临的变电站布点和通道走廊紧张等问题，开展了基于供电能力的主变压器站间联络结构优化模型的相关研究。首先，在透彻分析主变压器N-1校验及过载主变压器负荷二次转供过程的基础上，改进了配电系统最大供电能力优化计算模型;其次，以提高区域供电能力、简化联络通道为基本立足点，建立了变电站主变压器站间联络结构的多目标优化模型，并采用遗传算法进行求解;最后，通过实际算例分析，验证了所述方法的正确性和有效性。

英文摘要：

In order to effectively solve the problems confronted in the process of rapid urban economic development,such as substation layout and corridor scarcity,this paper deals with a contact structure optimization model for the main transformers between substations based on power supply capacity.First,on the basis of a thorough analysis of the main transformer N-1calibration and the process of second load transfer when the main transformer is overloaded,the optimization calculation model of maximum power supply capacity applied in distribution network is improved.Furthermore,to improve the regional power supply capacity and simplify contact corridors,a multi-objective optimization model for the contact structure of main transformers between substations is built and solved by the genetic algorithm.Finally,the validity and effectiveness of the proposed method is verified by an analysis of an example.