含有分布式发电的配电网重构研究

Network reconfiguration at the distribution system with distributed generation

分布式发电作为现有电力系统的有益补充,具有广阔的发展前景。分析了分布式发电并网对配电网重构问题的影响。在应用遗传算法时,采用了以网络中环路数为染色体长度,环路开关号为染色体基因的十进制编码策略,结合提出的三条禁忌规则,以纠正染色体不在可行解空间的问题;潮流算法采用以分布式发电为"负"负荷模型的前推回代法,更加符合配电网的实际情况。研究结果表明,对含有分布式电源的配网优化重构后,可在更大程度上减少网损,并对电压起到一定的支撑作用。最后对含有分布式发电的配网重构问题的未来研究方向进行了探讨。

There is a growing interest in distributed generation （DG） as an alternative for supplying electric power. This paper discusses the network reconfiguration at the power distribution systems with distributed generations （DG） based on Genetic Algorithm（GA）.The GA takes loop switch label as gene and loop number as chromosome length for coding,with three tabu rules, to restrain the infeasible solution. The backword-forword power flow algorithm is used with DG as negative load model From the results of this paper, it can be seen that DGs have the effects of loss reduction and voltage profile improvement over feeders. And at last, the research trend of this problem is debated.