Probabilistic reliability criterion for expansion planning of grids including wind turbine generators

This paper describes an alternative method, derived from a simulation model, for expansion planning for grids considering wind turbine generators in a composite power system. The proposed model includes capacity limitations and uncertainties of the generators and transmission lines. It proposes to handle the uncertainties of system elements (generators, lines, transformers and wind resources of WTG, etc.) by a Composite power system Equivalent Load Duration Curve (CMELDC)-based model considering wind turbine generators (WTG). The model is derived from a nodal equivalent load duration curve based on an effective nodal load model including WTGs. A heuristic scenario is used to choose the optimal solution among various scenarios featuring new candidate lines. The characteristics and effectiveness of this simulation model are illustrated by several case studies using an 8-bus test system.