Three-phase Probabilistic Load Flow Including ...

This paper presents a method of solving three-phase probabilistic load flow (PLF) for distribution system with single-phase and three-phase grid-connected photovoltaic (PV) systems using the sequential Monte Carlo technique. A novel probabilistic model of output power of PV system is proposed considering random change of weather and hourly variation of relevant parameters. The time-varying load with randomness is also incorporated in PLF. Some cases in modified IEEE 33-node distribution system have been implemented to verify the method. Time-sequence impacts of PV generation on power flow and voltage profiles in distribution system, taking into account the correlation of weather between different zones, are gained from results.