Optimal Allocation of Reactive Power Compensators and Energy Storages in Microgrids Considering Uncertainty of Photovoltaics

The intermittence of DGs which challenges the voltage and power quality manifests the need for new planning and operation strategies for microgrids. Considering the uncertainty of PV output, the advantages of both reactive power compensators (RPC) and energy storages (ES) are investigated in this paper. With the objective to minimize the power loss of microgrids, the optimal allocations of RPCs and ESs are solved as an optimal power flow problem. Monte Carlo method is utilized to simulate the different scenarios of PV output with its probability. IEEE-33 system is implemented to investigate the effect of RPCs and ESs on the voltage mitigation and power loss reduction.