中文摘要：

针对城市高速发展中存在的通道走廊不足、变电站布点等问题,提出了基于供电能力的配电网联络结构优化的模型和算法.以满足区域负荷需求、简化联络通道、减少建设费用为主要目的.首先,在明确了供电能力及配电系统联络概念的基础上,确定了配电系统最大供电能力的计算方法;其次,建立了以单位供电能力费用最小为目标函数的数学模型,并考虑了联络支路长度、区域负荷需求、主变站间联络通道数目等具体约束;最后,采用了改进的遗传算法对该模型进行优化求解,通过实际配电网算例分析验证了该模型和算法的正确性和有效性.

英文摘要：

In order to tackle the problems of corridor scarcity and substation layout during the rapid development of ur- ban economy, a model and method of distribution tie-lines structure optimization was proposed based on power supply capacity. Aimed at satisfying the area load demand, simplifying tie-lines channel, reducing construction cost, initial- ly, on the base of clearing the concepts of power supply capacity and distribution tie-lines, the calculation method of power supply capacity is established. Furthermore, a model with a target function of unit power supply cost minimum considering some specific bounds of tie-lines branch length, area load demand, the number of main transformer tie- lines channel is built up. Finally, the modified genetic algorithm is used to solve the model. The validity and effective- ness of the proposed model and method is verified by the analysis of an practical example.