Power system flexibility scheduling model for wind power integration considering heating system
2017
Flexibility of power system is critical to integrate renewable energy such as wind power, especially in the heating period in winter. In this paper, a flexibility scheduling model is proposed to maximize the downward flexibility in load valley periods and the upward flexibility in load peak periods for power system respectively considering the thermal-electrical operation characteristics of large combined heat and power(CHP) unit, thermal storage device, electric boiler, and interconnected heating networks. In order to achieve a reasonable allocation of thermal-electrical power output, the heating system models considering the thermal-electrical operation characteristics of the above energy devices are developed in this paper. Numerical results show that the proposed model can fully commit and dispatch various components to contribute to the power system flexibility improvement.
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