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Keywords

wind power consumption, cogeneration self-supply power plant, clean alternative, alternative transactions, trading of power generation rights on short time scales

Abstract

Due to the fact of insufficient peaking capacity in power grid, the wind curtailment becomes prominent in recent years. However, the regulation potential from a large number of coal-fired self-supply power plants is not fully valued and utilized. Under the background of current market policy, a short time-scale trading mode of power generation rights is designed with the consideration of captive power plants participating in transactions and promoting wind power consumption. The unit price of the transaction uses the hour as the time scale, and the settlement uses the day as the time scale. In addtion, in the self-supplied power plant, the electric heating device is employed to absorb wind power and participate in the joint heating. Thus, the thermoelectric coupling constraints of the unit is decoupled, and the power output of the unit is reduced. Finally, The lowest cost is selected as the objective, and a clean alternative cogeneration dispatch model is constructed for wind power plants. Simulation results show that this method effectively improves the level of wind power consumption, reduces the operating cost of captive power plants, reduces coal consumption, and realizes clean replacement of electric energy.

DOI

10.19781/j.issn.1673-9140.2022.04.007

First Page

57

Last Page

64

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