Energy storage configuration method of combined energy storage system

Abstract

The invention provides an energy storage configuration method of a combined energy storage system, and belongs to the field of AGC frequency modulation of traditional energy configuration energy storage. The method comprises the following steps: S1, counting values of all AGC instructions issued by a scheduling department in a preset time period and duration of each ACG instruction, and then obtaining maximum configuration of an energy storage PCS; S2, obtaining the maximum battery capacity needing to be configured according to the value of the AGC instruction and the duration time of each ACG instruction; S3, setting a plurality of hybrid configuration combinations, wherein each hybrid configuration combination comprises at least two energy storage routes, and parameters of each energy storage route are obtained; S4, setting an objective function and limiting conditions; and S5, solving the objective function to obtain an optimal hybrid configuration combination. According to the method, the one-time investment of the energy storage system is reduced, the energy storage AGC regulation performance is improved, the service life of the energy storage system is prolonged, and the return on investment of an energy storage project is greatly improved.

Description

technical field [0001] The invention belongs to the field of traditional energy configuration and energy storage for AGC frequency modulation, and in particular relates to an energy storage configuration method of a combined energy storage system. Background technique [0002] In response to the relevant provisions of the "Implementation Rules for the Management of Grid-connected Power Plants" and "Implementation Rules for the Management of Auxiliary Services for Grid-connected Power Plants" (hereinafter referred to as "the two rules"), thermal power / hydropower / gas units (hereinafter referred to as "controllable units") ) must receive the AGC frequency regulation command issued by the power grid. At the same time, the two detailed rules specify three indicators to measure the response of the controllable unit after receiving the AGC command: response time, output climbing rate and response accuracy. The power grid company rewards and punishes the controllable units based on...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems in the above-mentioned prior art that the loss during adjustment is too large, the system cannot achieve optimal configuration, and the return on investment is low, and provides an energy storage configuration method for a combined energy storage system, so that the entire system can achieve The optimized configuration reduces the primary investment of the energy storage system, improves the performance of the energy storage AGC adjustment, prolongs the service life of the energy storage system, and greatly improves the return on investment of the energy storage project

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