A New Combined Scheduling Method of Thermal-Wind Power Considering Grid Restrictions and Wind Power Consumption
2021
In order to effectively alleviate wind power consumption and environmental pollution, taking the grid restrictions and wind power consumption into consideration, a combined dispatching model of thermal-wind power system is proposed, which is helpful to arrange the output of generating units economically and reasonably. The wind power cogeneration scheduling model is built on the basis of minimizing the total operation cost which includes unit operation cost, environmental cost and wind abandonment cost. Besides, the grid restrictions are considered reasonably, inclueding DC power flow equation for fast calculation, constraints of generator operating range, limit constraint of unit slope, start/stop time limit, spinning reserve limitations and wind energy output constraints. The model is a quadratic programming model, which is solved by CPLEX in this paper. Taking IEEE30 electrical system as an illustration, the validity and rationality of the proposed method are verified.
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