Research on estimation probability power flow calculation of distribution network considering distributed generation

Distribution network is from the passive network into an active network when distributed generation (DG) accesses. It makes the traditional distribution network power flow calculation becomes more complex. According to the common grid-connected mode of distributed generation, considering the random characteristics of distributed generation, analyzed the influence of distributed generation on distribution network. The probability model of PV arrays and wind farms in power flow calculation is constructed, and the probability power flow calculation of distribution network with distributed generation is realized by point estimation method. Finally, the simulation is carried out by IEEE RBTS Bus6 system.