基于分布式发电的油田配电网重构

采用伴生气的油田分布式发电具有容量小、分散的特点,根据负荷控制类型在潮流计算中将其作为PQ节点进行处理.提出了一种模拟退火与免疫算法相结合的网络重构算法,通过Boltzmann模拟退火算子来进行选择操作,同时采用免疫疫苗思想,保持了种群的多样性,并提升了收敛性能.根据进化过程中易产生不可行解的特点,提出环路公共开关矩阵方法,可有效避免不可行解的产生,进一步缩小了最优解的搜索空间.验证算例表明了该重构方法的优越性,在油田电网中应用可带来较大的经济效益.

Oilfield Distribution Network Reconfiguration Based on Distribution Generation

Distribution generation(DG) of oilfield based on associated gas has the dispersive characteristics and is of small capacity, which is treated as PQ point in power flow calculation according to load control type. A distribution network reconfiguration algorithm based on simulated annealing and immune algorithm is proposed in this paper, where the annealing operator simulated by Boltzmann is used in selection operation, and the method of immune vaccine is applied for improving the diversity and convergence performance of population. In order to avoid the infeasible solutions in evolution, a method of public switches matrix of loops is proposed, and the searching space is compressed effectively. The tested system shows the advantages of given method, and great benefits can be obtained in oilfield application.