Energy storage capacity collaborative optimization method and device of auxiliary unit frequency modulation system

Abstract

The invention provides an energy storage capacity collaborative optimization method and device for an auxiliary unit frequency modulation system. The method comprises the following steps of determining an energy balance capability index of an energy storage system for representing the energy storage coping capability; determining an energy storage capacity double-layer collaborative optimization model corresponding to the auxiliary unit frequency modulation system, wherein the energy storage capacity double-layer collaborative optimization model comprises an outer-layer optimization model which takes the energy balance capability index of the energy storage system as a constraint condition and is used for optimizing the energy storage configuration strategy cost and an inner-layer optimization model which is used for optimizing the frequency modulation performance of the auxiliary unit frequency modulation system; and based on the characteristics of the energy storage capacity double-layer collaborative optimization model, performing analysis processing by using a preset model optimization analysis mode, and determining an energy storage optimal configuration strategy corresponding to the energy storage system. According to the method, the influence of uncertain factors on the energy storage capacity demand can be fully considered, meanwhile, the coupling relation between energy storage capacity planning and system optimization operation can be considered, and the system configuration robustness is improved.

Description

technical field [0001] The invention relates to the technical field of energy storage capacity configuration of an auxiliary unit frequency regulation system, in particular to a method and device for collaborative optimization of energy storage capacity of an auxiliary unit frequency regulation system. In addition, it also relates to an electronic device and a processor-readable storage medium. Background technique [0002] With the integration of large-scale new energy generation into the grid, the frequency characteristics of the power system are becoming more and more complex. The disadvantages of traditional thermal power units, such as long response time lag, low ramp rate, and poor command tracking performance, have become increasingly prominent. Under the circumstances that the current rules and mechanisms for energy storage to participate in auxiliary services as an independent entity are not perfect, auxiliary units participating in AGC (Automatic Generation Contro...

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Problems solved by technology

[0005] For this reason, the present invention provides a method for synergistic optimization of the energy storage capacity of the frequency regulation system of the auxiliary unit to solve the problem of the high limitation of the collaborative optimization scheme of the energy storage capacity of the frequency regulation system of the auxiliary unit existing in the prior art, resource utilization and energy storage The problem of poor robustness of configuration strategy

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