基于简化网络模型的复杂中压配电网分析可靠性评估算法

提出一种基于简化网络模型的复杂中压配电网可靠性评估算法。为使网络简化,首先根据复杂配网特点将网络分块,块具有整体性,且块内元件故障后果一致,然后将块等效为简单的支路,形成简化网络模型。在简化网络模型基础上可灵活、高效地用最小割集法搜索故障、进行网络重构和潮流计算。应用该算法对RBTS-BUS6系统进行可靠性评估,算例表明该算法灵活、高效、实用、信息丰富。

A New Algorithm of Reliability Evaluation for Complex Medium Voltage Distribution Networks Based on Implified Network Model

A simplified network mode based algorithm to evaluate the reliability of complex medium voltage distribution networks(MVDN)is proposed.To simplify the network model the authors divide the distribution network into sections due to the features of complex MVDN.The components constituting a section exist as a whole and their failure cause same results.Then these sections are replaced by some equivalent simple branches to form the simplified network model.With the simplified network model,the fault can be flexibly and efficiently searched by minimal cutset method,and the network reconstruction of and power flow calculation can be conducted.Applying the proposed algorithm in the evaluation of RBTS-BUS6 system,the results show that this algorithm is flexible,efficient,practicable and informative.