Optimal operation of an integrated power distribution system fed with renewable energy sources, diesel generation and battery storage

Abstract

Recent developments in the electric utility industry is to encourage the entry of renewable energy sources for power generation in the distribution system. Wind energy systems, Photovoltaic systems, diesel engines and gas turbines are considered as Distributed Generators (DG). An Integrated Power Distribution System (IPDS) is a distribution system independent of grid that includes diesel generators, Wind Park, Solar Photovoltaic and batteries etc. This IPDS is considered for voltage stability analysis in the literature with Solar and Wind energy sources. However, it appears that no attempt has been made to reduce the losses using with integration of renewable energy sources. Further, optimal scheduling for integration of Distributed Generators (DG) is not considered in the literature so far. The main objective of this paper is to reduce the diesel consumption and losses by utilizing the energy from renewable energy sources and battery storage. The optimal scheduling of the distributed generators in IPDS is also considered. IEEE 14 Bus system is analyzed with Wind, Solar, Battery, Diesel generation and Static Var Compensator (SVC) using Power System Analysis Toolbox in MATLAB.