Probabilistic Distribution Power Flow Based on Finite Smoothing of Data Samples Considering Plug-in Hybrid Electric Vehicles
The ever increasing penetration of plug-in hybrid electric vehicles in distribution systems has triggered the need for a more accurate and at the same time fast solution to probabilistic distribution power flow problem. In this paper a novel algorithm is introduced based on finite sample points to determine probabilistic density function of probabilistic distribution power flow results. A modified probabilistic charging behavior of plug-in hybrid electric vehicles at charging stations and their overlap with residential peak load is evaluated in probabilistic distribution power flow problem. The proposed algorithm is faster than Monte Carlo Simulation and at the same time keeps adequate accuracy. It is applied to solve probabilistic distribution power flow for two dimensionally different test systems and is compared with recent probabilistic solutions. Simulation results show the accuracy and efficiency of the proposed algorithm to calculate probability density function of uncertain outputs.
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