Shared energy storage capacity value evaluation method and device

Abstract

The invention provides a shared energy storage capacity value evaluation method and device, and the method comprises the steps: building an operation model of a user side energy system comprising a plurality of participants, the operation model representing the relation between the participants; on the basis of a parameter planning method, converting the operation model into an evaluation model of the shared energy storage capacity value; carrying out processing according to a linear programming dual method to obtain an optimal value evaluation strategy of the evaluation model, the optimal value evaluation strategy expressing the relation between the system electricity utilization cost and the shared energy storage capacity, and the shared energy storage capacity comprising the power capacity and the energy capacity of the centralized shared energy storage equipment. The method comprises the following steps: establishing a centralized shared energy storage mechanism that multiple users invest and construct energy storage equipment and cooperatively use the energy storage equipment, firstly establishing an operation model of a system, converting the operation model into an evaluation model in order to evaluate the operation model, and obtaining an optimal value evaluation strategy based on a linear programming dual theory.

Description

technical field [0001] The invention relates to the field of new energy technologies, in particular to a method and device for evaluating the value of a shared energy storage capacity. Background technique [0002] In recent years, new energy power generation technologies represented by wind power generation and photovoltaic power generation have developed rapidly. New energy will play a vital role in the process of building a new power system and realizing "carbon peaking and carbon neutrality". At the same time, the installed capacity of distributed new energy continues to increase, and the user-side access to distributed new energy can reduce electricity costs. However, the uncertainty of new energy will bring fluctuations in electricity costs: for example, during the peak period of electricity consumption, the electricity price is high, if the output of new energy is high at this time, the user's electricity cost will be low; otherwise, the cost will be high. [0003] ...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and device for evaluating the value of shared energy storage capacity, which is used to solve the defect in the prior art that each user independently builds energy storage equipment with relatively high investment costs, and realizes centralized energy storage equipment invested and used by multiple users. Shared energy storage mechanism to reduce system electricity cost

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