A Practical Formulation for Ex-Ante Scheduling of Energy and Reserve in Renewable-Dominated Power Systems: Case Study of the Iberian Peninsula

Energies

Rafael Zárate-Miñano¹  Miguel Carrión²  Ruth Domínguez² 

[1] Department of Electrical Engineering, University of Castilla—La Mancha, 13400 Almadén, Spain;Department of Electrical Engineering, University of Castilla—La Mancha, 45071 Toledo, Spain;

关键词: energy and reserve scheduling;    intermittent power uncertainty;    probabilistic approach;    risk aversion;    unit-commitment;   

DOI  :  10.3390/en11081939

来源: DOAJ

【 摘 要 】

Scheduling energy and reserve in power systems with a large number of intermittent units is a challenging problem. Traditionally, the reserve requirements are assigned after clearing the day-ahead energy market using ad hoc rules or solving computationally intense mathematical programming problems to co-optimize energy and reserve. While the former approach often leads to costly oversized reserve provisions, the computational time required by the latter makes it generally incompatible with the daily power system operational practices. This paper proposes an alternative deterministic formulation for computing the energy and reserve scheduling, considering the uncertainty of the demand and the intermittent power production in such a way that the resulting problem requires a lower number of constraints and variables than stochastic programming-based formulations. The performance of the proposed formulation has been compared with respect to two standard stochastic programming formulations in a small-size power system. Finally, a realistic case study based on the Iberian Peninsula power system has been solved and discussed.

【 授权许可】

Unknown