Abstract
At present, electric power systems face difficulties in system operations due to rapid increase in uncontrollable renewable energy sources (RES), such as photovoltaic power generations (PVs). Reduction of controllable resources also yields concerns about the supply reliability issues. This paper focuses on a new generation dispatching method for mitigating the irregularity associated with renewable power generation. A new algorithm is proposed for probabilistic economic load dispatch (PELD) as an efficient solution for a day-ahead and a real-time generation schedule (GS) that fully utilizes the limited resources of a power system under uncertainties. Real time PV forecasts with the co-relations of PV forecasting errors are effectively treated in the proposed method. Special feature of the proposed method different from the existing works lies in a frequent real-time update of GS by using a fast algorithm to maximize robustness against uncertainties.
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