Optimal Expansion Planning of MV Power Systems Considering Distributed Generations and Energy Storage Systems

In this paper, an approach is proposed for optimum placement and sizing of distributed generation (DG) and battery energy storage system (BESS) in distribution networks. The objective functions in this paper are includes voltage profile improvement of network busses, loss reduction of distribution system, and minimization of installing and operation costs of both DG and BESS. In this paper, the fuel cell-Combined heat and power (CHP) technology is used as DG and nickel/cadmium (Ni/Cd) batteries is used as BESS. It also in this paper are used genetic algorithm (GA) as a means to solve the optimization problem, IEEE 33-bus radial distribution network as test system and Forward/backward sweep technique as load flow method.