改进蚁群算法在含DG配电系统可靠性评估应用

Application of Improved Ant Colony Algorithm in Reliability Evaluation of DG Power Distribution System

分布式电源(Distributed Generation,DG)接入配电网,使得网络的拓扑结构复杂性增加.使用最小路法能较好的分析此状态下的配电网,并且其计及了分支线保护等三方面的影响,能够处理有无备用电源和有无备用变压器的情况.在传统蚁群算法的基础之上通过使用轮盘赌与自适应信息素挥发系数对其进行改进,改进后的的蚁群算法收敛性大大提高,并通过Matlab验证了IEEE RBTS Bus6系统F4的主馈线可靠性,结果表明该方法能很好的反映DG对配电网的供电可靠性影响,并且能快速分析配电网的拓扑结构,具有很强的实用性.

Distributed generation（DG） access to the distribution network makes the network topology more complex.The minimum path method can be used to better analyze the distribution network in this state,and it takes into account the impact of the branch line protection,disconnector,segmented circuit breakers and can deal with the situation of whether or not there is a standby power supply or transformer.Based on the traditional ant colony algorithm,the convergence of the improved ant colony algorithm is greatly improved by using rosette and adaptive pheromone volatilization coefficient.The algorithm of IEEE RBTS Bus6 system F4 is verified by Matlab.The results show that this method can well reflect the effect of DG on the power supply reliability of the distribution network,and it can quickly analyze the topology of the distribution network and has a strong practicality.