Title: Simultaneous allocation of multiple distributed generators and shunt capacitor banks in radial distribution systems using grasshopper optimisation algorithm

Authors: Suresh Kumar Sudabattula; M. Kowsalya; Velamuri Suresh

Addresses: School of Electronics and Electrical Engineering, Lovely Professional University, Phagwara, Punjab-144411, India ' School of Electrical Engineering, Vellore Institute of Technology, Vellore, Tamilnadu-632014, India ' School of Electrical and Electronics Engineering, SASTRA Deemed to be University, Thanjavur, Tamilnadu-613401, India

Abstract: Electricity has become a part of day to day life of the people. With the increase in population, electricity demand is also raised. The development of distribution systems (DSs), the optimal utilisation of shunt capacitor banks (SCBs) and distributed generators (DGs) in the DSs are heightened. In this paper, a methodology is proposed to allocate both DGs and SCBs simultaneously on the DS. The objectives are to minimise power loss, improving the voltage profile and voltage stability index (VSI) of the DS. First locations of DGs and SCBs are found out by loss sensitivity factor (LSF) technique. Next grasshopper optimisation algorithm (GOA) is used to determine the rating of these sources. The methodology is implemented on IEEE 33 and 69 bus test systems considering optimal allocation of multiple DGs without and with placement of capacitors. Finally, the results obtained by the proposed method are compared with GA/PSO and PSO methods.

Keywords: distributed generators; DGs; shunt capacitor banks; SCBs; loss sensitivity factor; LSF; grasshopper optimisation algorithm; GOA; power loss; voltage stability index; VSI.

DOI: 10.1504/IJETP.2020.109315

International Journal of Energy Technology and Policy, 2020 Vol.16 No.5/6, pp.563 - 586

Received: 13 Jul 2018
Accepted: 05 Jun 2019

Published online: 30 Apr 2020 *

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