Fault-tolerant location of transient voltage disturbance source for DG integrated smart grid
Document Type
Article
Date of Original Version
3-1-2017
Abstract
In this paper, a new fault-tolerant approach based on improved particle swarm optimization (IPSO) is proposed to automatically locate the transient voltage disturbance source (TVDS) for smart grid with distributed generation (DG) integration. We first analyze the influence of the DG integration on the TVDS direction-judgments. Two new credibility indexes, the monitoring-credibility and the partial-credibility, are defined to measure the reliability of direction-judgment result at each power quality monitor (PQM) with consideration of multiple factors, including DG integration, disturbance intensity and fluctuation characteristic. By using these credibility indexes and a newly defined search space, a heuristic searching approach, called IPSO, is then proposed to obtain the optimal solution of the TVDS location. Simulation study is carried out on the IEEE 34 node test feeder, and the results demonstrate that the proposed approach has significantly improved fault-tolerant capability with satisfatory convergence speed.
Publication Title, e.g., Journal
Electric Power Systems Research
Volume
144
Citation/Publisher Attribution
Weng, Guoqing, Feiteng Huang, Yufei Tang, Jun Yan, Yurong Nan, and Haibo He. "Fault-tolerant location of transient voltage disturbance source for DG integrated smart grid." Electric Power Systems Research 144, (2017): 13-22. doi: 10.1016/j.epsr.2016.10.063.