A practical approach for profit-based unit commitment with emission limitations

作者：Catalao J P S^*; Mariano S J P S; Mendes V M F; Ferreira L A F M

来源：International Journal of Electrical Power & Energy Systems, 2010, 32(3): 218-224.

DOI：10.1016/j.ijepes.2009.07.006

• Profit-based unit commitment (PBUC)
• Electricity market
• Emission limitations
• Multiobjective optimisation (MO)

This paper proposes a practical approach for profit-based unit commitment (PBUC) with emission limitations. Under deregulation, unit commitment has evolved from a minimum-cost optimisation problem to a profit-based optimisation problem. However, as a consequence of growing environmental concern, the impact of fossil-fuelled power plants must be considered, giving rise to emission limitations. The simultaneous address of the profit with the emission is taken into account in our practical approach by a multiobjective optimisation (MO) problem. Hence, trade-off Curves between profit and emission are obtained for different energy price profiles, in a way to aid decision-makers concerning emission allowance trading. Moreover, a new parameter is presented, ratio of change, and the corresponding gradient angle, enabling the proper selection of a compromise commitment for the units. A case study based on the standard IEEE 30-bus system is presented to illustrate the proficiency Of Our practical approach for the new competitive and environmentally constrained electricity supply industry.

• 出版日期2010-3