Energy storage system configuration method for improving utilization level of wind energy of wind power plant

Abstract

In order to solve the problem that the wind power accessing is limited due to difficult peak regulation of a power grid, the invention establishes a benefit evaluation system applied to an energy storage system at the side of a wind power plant and provides an energy storage system configuration method for improving the utilization level of wind energy of the wind power plant. The energy storage system configuration method is characterized by comprising the following contents of: calculation of the discarded wind power quantity of the wind power plant, the action mechanism that the energy storage system is utilized to reduce the discarded wind power quantity of the wind power plant, benefit calculation of the energy storage system and optimized configuration of the energy storage capacity of maximum total income of the energy storage system and the like. The energy storage system configuration method provided by the invention has the advantages that the factors such as the fluctuation characteristic of wind power output, the access capability of the power grid to the wind power, the investment cost of the energy storage system and the economic benefit are comprehensively considered, the maximization of the comprehensive benefit of the energy storage system is adopted as the target, and an effective means is provided for improving the containing capability of the power grid for the wind power plant.

Description

technical field [0001] The invention relates to the technical field of wind power generation, and relates to a method for configuring a wind farm energy storage system to improve the utilization level of wind energy. Background technique [0002] my country is rich in wind energy resources, and vigorously developing wind power is an effective way to increase my country's energy supply, adjust energy structure, achieve sustainable energy development and protect the environment. However, the characteristics of wind power, such as intermittent, fluctuating, low capacity reliability, and poor mid- and long-term prediction accuracy, make it difficult to participate in the system's dispatch plan as a stable power source, and other power sources need to provide backup and peak-shaving services to meet Wind power grid-connected consumption needs. For the power grid with thermal power as the mainstay, due to the constraints of peak-shaving capacity, excessive acceptance of wind powe...

AI Technical Summary

Problems solved by technology

However, the current battery energy storage system is relatively expensive, so it is necessary to comprehensively consider the economic benefits and investment costs of the energy storage system, and establish a configuration method for the energy storage system with the goal of maximizing the comprehensive benefits and given the acceptance capacity of the grid.

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