Incorporation of distributed generation and shunt capacitor in radial distribution system for techno-economic benefits

Abstract This paper addresses an incorporation of Distributed Generation (DG) and shunt capacitor in a distribution system simultaneously for minimizing active power loss. For this purpose, the Index Vector Method (IVM) and Power Loss Index (PLI) approach is utilized to determine the suitable position/location of DGs and shunt capacitors. However, the sizes/capacities of these are determined through population based Gbest-guided Artificial Bee Colony (GABC) meta-heuristic optimization algorithm. The various costs such as purchase active power from grid, DG installation, capacitor installation, DG Operation and Maintenance (O&M) are evaluated at two different load scenarios. In addition to that, technical and economical analyses are examined for various combinations of DGs and shunt capacitors. The proposed methodology is successfully demonstrated on 33-bus and 85-bus radial networks and the obtained numerical outcomes validate the suitability, importance and effectiveness to identify locations as well as sizes of DGs and shunt capacitors.

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