Wind power storage energy power and capacity optimization and configuration method based on economic dispatching

Abstract

The invention discloses a wind power storage energy power and capacity optimization and configuration method based on economic dispatching. A weibull probability curve of wind power is established; a random planning model of a wind power system energy storage apparatus is established based on economic dispatching; and the random planning model of the energy storage apparatus, established by a "2m+1" point estimation method, is solved by adopting a parallel branch and bound method to obtain an optimal power and capacity configuration scheme of the energy storage apparatus. Aiming to solve the problem in wind storage effective matching in uncertain wind power environment, the random planning model of the energy storage apparatus with optimal power and capacity configuration is proposed; and based on a comprehensive solving scheme with point estimation and parallel branch and bound strategies, the energy storage random planning model is rapidly and effectively solved, so as to determine the optimal power and capacity configuration scheme of the energy storage apparatus.

Description

technical field [0001] The invention relates to the technical field of electric power systems, in particular to a method for optimizing power and capacity configuration of wind power storage energy based on economic dispatch. Background technique [0002] Under the concerns of pollution and resource depletion, renewable energy power generation has the characteristics of environmental protection and sustainability. With the increase in the proportion of renewable energy, especially wind power, the grid will show stronger randomness and volatility. At present, although the accuracy of wind power prediction has been steadily improved, its uncertainty is still a difficult problem. In order to effectively suppress power fluctuations in the power grid, it is particularly important to configure energy storage with appropriate capacity. [0003] As the most promising power generation method among renewable energy sources, wind power generation has become more and more mature in app...

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Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a wind power storage energy power and capacity optimization configuration method based on economic dispatch, aiming at the problem of effective coordination of wind power storage in an uncertain wind power environment, and proposes the optimal power and capacity of energy storage devices The stochastic programming model of optimal configuration, and based on the comprehensive solution scheme of point estimation and parallel branch and bound strategy, can quickly and effectively solve the stochastic programming model of energy storage, so as to determine the optimal power and capacity configuration scheme of energy storage devices

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