Energy storage configuration method for coordinating wind electric field to participate one time frequency modulation of electric power system

Abstract

The invention discloses an energy storage configuration method for coordinating a wind electric field to participate one time frequency modulation of an electric power system, which is characterized by comprising backup proportional wind abandoning method that the wind electric field provides to the electric power system for the backup of one time frequency modulation, determination of effective backup capacity of the wind electric field, an evaluation index of wind abandoning utilization rate when the wind electric field provides one time frequency modulation backup to the electric power system, a control strategy A for coordinating the wind electric field to participate the electric power system one modulation energy storage modulation system, control strategy B for coordinating the wind electric field to participate the one time frequency modulation energy storage system of the electric power system, the energy storage system rated power capacity of the energy storage system and the determination content of the capacity of the rated energy. The invention can reduce the economic loss of the wind electric power field caused by the wind abandoning electric quantity on the premise that the same one time frequency modulation backup is provided, realizes the optimal configuration of the rated power of the energy storage system and the energy capacity, and can maximize the benefit. The invention is scientific, reasonable, good in effect and strong in adaptability.

Description

technical field [0001] The invention relates to an energy storage configuration method for coordinating wind farms to participate in primary frequency regulation of a power system. Background technique [0002] In recent years, traditional fossil energy sources such as coal and oil are becoming increasingly exhausted around the world, and problems such as climate warming and environmental pollution are becoming more and more serious. In this context, the renewable primary energy represented by wind energy and solar energy has been paid more and more attention by human beings, and has developed rapidly, among which wind power generation technology has developed the most rapidly. [0003] However, the increasing penetration of wind power has brought many unprecedented challenges to the safe and stable operation of traditional power systems. The variable-speed wind turbines of the current mainstream wind turbines are different from traditional thermal power generators. The spe...

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Problems solved by technology

Considering that the inertial response of wind turbines participating in the power system is important to the frequency stability of the power system, the wind farm adopts a measure of curtailing part of the wind to provide a frequency modulation backup for the power system, but the wind curtailment of the wind farm reduces the grid-connected electricity of the wind farm. caused objective economic losses

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