Combined system energy optimization method with consideration of wind power consumption

Abstract

The invention, which belongs to the grid-connected optimization operation field of the new energy, relates to a combined system energy optimization method with consideration of wind power consumption; and thus in order to solve a wind curtailment problem, the combined system energy optimization method uses a cogeneration system based on combined operation of a wind power-electric energy storage-heat accumulating type electric boiler and takes economic optimum as an objective to reduce the wind-curtailment power effectively by increasing the load space. To be specific, the method comprises the following steps: (1), establishing an overall system framework including a conventional thermal power generating unit, a cogeneration unit, a wind turbine generator, an electric energy storage and heat accumulating type electric boiler; (2), carrying out comprehensive modeling of a cogeneration system; (3), establishing an optimal economic objective function; (4), establishing a power and heating power balancing relationship and operational constraints of all units during the operation period of the cogeneration cooperation system; and (5), carrying out optimization for active power outputs of all units. Therefore, development and utilization of the wind power are promoted; and power supply reliability of the power system is improved. The method can be applied to large-scale-wind-power-included provincial companies of all stages and has the broad application prospects.

Description

technical field [0001] The invention relates to an energy optimization method for a wind power-electric energy storage-thermal storage electric boiler combined system considering wind power consumption, and belongs to the field of new energy grid-connected optimization operation. Background technique [0002] Wind power generation is currently one of the power generation methods with the most mature technology, the most large-scale development conditions and the most commercial development prospects in new energy power generation. However, the penetration rate of wind power has increased rapidly, and the phenomenon that wind farms cannot be connected to the grid has become more and more prominent. The huge amount of abandoned wind power has become the focus of social attention. Wind power consumption has become a key issue affecting the sustainable and healthy development of my country's wind power industry. Especially in the "Three Norths" (Northeast, North and Northwest) r...

AI Technical Summary

Problems solved by technology

Existing technologies can jump out of the scope of traditional power systems, fully consider the complementarity of power systems and thermal systems, and improve the ability to optimize energy allocation in a wider space-time range, but most of them separately consider the impact of electric energy storage, heat storage devices and electric boilers on consumption. The role of the curtailment of the wind, less analysis and discussion on the effect of the three combined operation of the curtailment of the wind

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