A method and system for constructing an equivalent energy storage model of a gas pipeline network

By constructing an equivalent energy storage model for gas pipeline networks, the issues of information privacy and computational burden in the joint dispatch of gas pipeline networks and power systems were resolved. This enabled the quantification of energy storage capacity in gas pipeline networks and improved dispatch accuracy, ensuring the feasibility of control strategies.

CN116485101BActive Publication Date: 2026-07-21TSINGHUA UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TSINGHUA UNIVERSITY
Filing Date
2023-03-15
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In integrated energy systems, the joint dispatch of gas pipeline networks and power systems faces challenges such as information privacy issues, heavy computational burden, and the slow dynamic characteristics of gas pipeline networks making it difficult to quantify energy storage capacity, thus hindering joint dispatch.

Method used

An equivalent energy storage model for a gas pipeline network is constructed. By building dynamic equations, network constraint models, and equipment operation constraint models, the power constraint region is calculated, the equivalent energy storage model is defined, and the equivalent energy storage power and energy boundary parameters of the gas system are integrated to form the final model.

Benefits of technology

It enables accurate reflection of gas transient processes in gas pipeline networks, improves the accuracy of power system dispatching and the feasibility of control strategies, and facilitates embedding into power system optimization dispatching models.

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Abstract

The application belongs to the technical field of operation control of comprehensive energy systems, and discloses a method and system for constructing an equivalent energy storage model of a gas pipe network, wherein the method comprises the following steps: constructing a dynamic equation and a network constraint model of the gas pipe network; constructing an operation constraint model of each device in the gas pipe network; calculating a power constraint region between each device in the gas pipe network; defining an equivalent energy storage model of the gas system; calculating equivalent energy storage power and energy boundary parameters of the gas pipe network; and integrating the equivalent energy storage model of the gas system to obtain a final equivalent energy storage model of the gas pipe network. The equivalent energy storage model of the gas pipe network constructed by the application can be easily embedded into an optimal dispatching model of a power system, compared with the existing method, the equivalent energy storage model of the gas pipe network can more accurately reflect a gas transient process of the gas pipe network, improve the accuracy of dispatching, and ensure the feasibility of a control strategy.
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