Network Reconfiguration with Placement of Capacitor to Maximize the Net Saving and Voltage Stability in RDS Using ALO

Abstract

In this paper, an efficient method to solve the network reconfiguration with optimal location and sizing of switched capacitor in radial distribution systems (RDSs) is proposed.  The prime objectives of the proposed work are, enhancing the voltage stability and maximize the net saving cost and power loss minimization. A novel Meta-heuristic approach of Ant Lion Optimizer (ALO) is applied to solve the problem in RDS subjected to standard operating constraints. Here, a switched capacitor is used to compensate reactive power in RDS system. The efficiency of the proposed algorithm is validated by testing it on 33-node and 69-node radial distribution systems. The proposed ALO approach efficiently optimizes the location and sizing of capacitor with reshaping the network system. Also supporting sectionals/tie switches in order to improve power loss and voltage profile of the system. The simulation results are presented in this approach for real power loss minimization, voltage profile and voltage stability improvement and finally net saving is maximization of the test systems.  The quality of the results is compared with other methods available in the existing report.

Keywords: Network reconfiguration, switched capacitor, distribution system, cost, voltage stability, Ant lion optimizer.