Optimization of Contact Structure among Main Transformers Considering Unit Power Supply Capacity Cost
In allusion to the problems of corridor scarcity and substation layout during the rapid development of urban economy, a model and method of distribution contact structure optimization was proposed based on power supply capacity. Aimed at satisfying the area load demand, simplifying contact channel, reducing construction cost, firstly, on the base of clearing the concepts of power supply capacity and distribution contact, the calculation method of power supply capacity is established. Furthermore, a model with a target function of unit power supply capacity cost minimum considering some specific bounds of contact branch length, area load demand, the number of main transformer contact channel is built. Finally, the modified genetic algorithm is used to solve the model. The validity and effectiveness of the proposed model and method is verified through the analysis of practical example.