User side energy storage capacity configuration method based on portfolio theory

Abstract

The invention provides a user side energy storage capacity configuration method based on a portfolio theory. The method comprises the following steps of S01, predicting energy storage life; S02, establishing an energy storage full life cycle optimization configuration model based on the portfolio theory; S03, obtaining the energy storage capacity configuration according to the configuration model; wherein the step S02 comprises the portfolio, the energy storage operation benefits and risks in different markets and an energy storage operation benefit calculation model. Aiming at a user side energy storage economic capacity optimization configuration problem, the method fully considers a market in which user side energy storage can participate and make profits and the possible risks, considers the energy storage actual operation life calculation, and establishes the energy storage optimization configuration model based on the portfolio theory on the basis of a whole life cycle cost, and the values and possible risks of the user side energy storage in different markets are fully mined.

Description

technical field [0001] The field of energy storage of the present invention relates to an energy storage capacity allocation method, in particular to a user-side energy storage capacity allocation method based on investment portfolio theory. Background technique [0002] At this stage, user-side energy storage still does not have economies of scale. On the one hand, the initial investment cost of energy storage is high, and on the other hand, the efficiency of energy storage operation is low. The economic risks faced by the different electricity markets were also not taken into account. Therefore, economic evaluation and capacity optimization of energy storage, fully excavating energy storage optimization operation benefits and possible income uncertainties can help investors improve the economics of energy storage allocation and further promote the application and development of user-side energy storage . [0003] At present, energy storage is mainly used in a single mark...

AI Technical Summary

Problems solved by technology

In terms of energy storage on the user side, there are methods to study the application of energy storage equipment in peak shaving and valley filling, providing backup auxiliary services, and absorbing renewable energy, but they do not fully consider the application of energy storage in different application scenarios. Combination applications cannot accurately reflect the economic value of energy storage, and only construct an energy storage optimization operation scheduling model without further consideration of energy storage configuration issues; there are methods that analyze the optimal investment strategy for user-side energy storage based on the full life cycle cost, However, they all take the rated life of the energy storage as the planning period, without considering the actual life of the energy storage, which will affect the accuracy of the configuration.

[0004] At present, the application value of user-side energy storage in multiple power markets has been proven, but most of the current methods do not consider the comprehensive application of energy storage in various markets, nor consider the economic risks such as price changes that energy storage applications may face, and The calculation of the actual operating life of energy storage is rarely considered in the configuration process

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