An Efficient Priority Based Unit Commitment using the Unit Operation Costs and the Probabilistic Reserve Requirements

확률적 운전예비력 및 운전비단가 우선순위법에 의한 화력시스텝의 실제적인 기동- 정지계획

A simple algorithm is presented for solving the thermal unit commitment problem which is one of very important areas in economic operation of power systems. This algorithm is based on simple priority ordering by the unit operation cost and it is shown that the operation cost of chosen sets of generators is the minimum. The proposed method differs from the conventional priority-based formulations in that the unit operation are calculated in every load level. Further the poerating reserve requiements are satisfied by the newly derived analytical security function or the expectation of reserve. The proposed method is proven to be very simple, accurate and efficient in a sample system.