计及馈线自动化的配网可靠性算法研究

Research on distribution network reliability algorithms considering feeder automation

为研究馈线自动化系统对配网可靠性的影响,从馈线自动化发展的角度,分别对装设重合器-分段器型馈线自动化、集中式馈线自动化系统的两种配电网建立可靠性计算模型,计算系统可靠性指标。装设重合器-分段器型馈线自动化的配网,可靠性算法根据故障后开关元件动作逻辑确定。装设集中式馈线自动化的配网,可靠性算法考虑“三遥”开关故障概率、线路故障后动作逻辑等因素。最后对实际算例计算可靠性指标,对比上述两种自动化系统对配电网可靠性的影响。

In order to study the influence of feeder automation system on the reliability of distribution network,this paper,from the perspective of the development of feeder automation,establishes reliability algorithms for two kinds of distribution network with recloser-sectionalizer type feeder automation system and centralized feeder automation system,and calculates the system reliability index.For the distribution network with recloser-sectionalizer type feeder automation,the reliability algorithm is determined according to the action logic of switch elements after fault.For the distribution network with centralized feeder automation,the reliability algorithm considers the failure probability of“three remote”switch,the action logic after line fault and other factors.At the end of the paper,the reliability index of the actual example is calculated,and the influence of the above two automation systems on the reliability of the distribution network is compared.