Table of Contents
Advances in Electrical Engineering
Volume 2017, Article ID 5764054, 6 pages
https://doi.org/10.1155/2017/5764054
Research Article

Control Strategy for Power Loss Reduction considering Load Variation with Large Penetration of Distributed Generation

State Grid Jilin Province Electric Power Research Institute, 4433 Renmin Street, Changchun, Jilin Province, China

Correspondence should be addressed to Chang Liu; moc.621@7290zgnahcuil

Received 17 August 2016; Accepted 8 December 2016; Published 15 February 2017

Academic Editor: Mamun B. Ibne Reaz

Copyright © 2017 Chang Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

With the increase of penetration of distribution in distribution systems, the problems of power loss increase and short-circuit capacity beyond the rated capacity of the circuit breaker will become more serious. In this paper, a methodology (modified BPSO) is presented for network reconfiguration which is based on the hybrid approach of Tabu search and BPSO algorithms to prevent the local convergence and to decrease the calculation time using double fitness to consider the constraints. Moreover, an average load simulated method (ALS method) considering load variation is proposed such that the average load value is used instead of the actual load for calculation. Finally, from a case study, the results of simulation certify that the approaches will decrease drastically the losses and improve the voltage profiles obviously; at the same time, the short-circuit capacity is also decreased into smaller shut-off capacity of the circuit breaker. The power losses will not be increased too much even if the short-circuit capacity constraint is considered; voltage profiles are better with the constraint of short-circuit capacity considered. The ALS method is simple and the calculation time is fast.