Unit Commitment Considering Variable Power of Hydro and Pumped Storage Hydro Units

수력 및 앙수발전기의 가변출력운전을 고려한 기동전지 계획에 관한 연구

This paper presents a new method for solving a long term unit commitment problem including hydro and pumped storage hydro units in a large scale power system. The proposed method makes it possible to get variable power of hydro and pumpde storage hydro units and results in the better unit commitment with good convergency. Moreover this paper proposes an unit commitment algorithm to consider variable power of these units effectively by Lagrangian Relaxation method. By applying the proposed method to the test system and the real system, it is verified the usefulness of this method.