Optimal power flow considering operation of wind parks and pump storage hydro units under large scale integration of renewable energy sources

The purpose of this paper is to describe a module that solves the optimal power flow in a power system, which includes wind parks and pump storage hydro units owned by independent power producers (IPP) under large-scale integration of dispatchable renewable energy sources (RES). When IPP are present in the system, the operation of wind parks and pump storage hydro units is based on special contractual agreements for buying or selling energy between each IPP and the power utility, so that additional physical and economic operation constraints must be taken into consideration for the optimal operation of the system. Also the optimal coordination of RES units is examined so that the best exploitation of RES is succeeded. A successive linear programming approach is utilized for the solution of the problem.