Uncertainty modelling of wind turbine generating system in power flow analysis of radial distribution network

In this paper, interval arithmetic (IA) is used for taking into account the uncertainties of the active power produced by a wind turbine generating system (WTGS) in the power flow computation of a balanced radial distribution system. The effectiveness of the proposed method has been investigated by comparing the results obtained by this method with those obtained by Monte Carlo simulation (MCS) technique on two different balanced radial distribution systems. It has been found that the results obtained by these two methods (IA and MCS) are very close to each other while the computation time required by IA based method is significantly less than that required by MCS.