Optimization and coordination method of hybrid thermal power-wind power-electric vehicle system in marketization power system

By optimizing the hybrid thermal power-wind power-electric vehicle system through four-level energy dispatch and a deviation price model, the problems of single energy storage form and rigid dispatch strategy in the power system are solved, achieving a dual improvement in frequency stability and economy, and enhancing the system's ability to cope with renewable energy fluctuations and market response.

CN121503958APending Publication Date: 2026-02-10CHINA THREE GORGES UNIV
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Patent Information

Application Number
CN202511433817.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-09
Publication Date
2026-02-10

AI Technical Summary

Technical Problem

The existing power system suffers from inefficiency and insufficient economic efficiency in responding to the volatility of renewable energy and market-based electricity price signals. This is especially true in hybrid thermal power-wind power-electric vehicle systems, where energy storage is limited to a single form, dispatch strategies are rigid, the mobile energy storage characteristics of electric vehicles are not fully utilized, and there is a lack of market-based linkage mechanisms.

Method used

A four-level energy dispatching mechanism is adopted to dynamically match the grid frequency and wind power deviation. Combined with the deviation electricity price model, six major operating scenarios and eleven states are divided. The system profit is optimized through a sequential quadratic programming algorithm to achieve refined energy management and market response of electric vehicle batteries.

Benefits of technology

It significantly improves the stability and economy of the system, shortens the response time to renewable energy fluctuations, reduces operating costs, enhances the adaptability and stability of the system in different environments, and strengthens the economic benefits of the system.

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Abstract

The invention discloses an optimization and coordination method of a hybrid thermal power-wind power-electric vehicle system in a marketization power system, and belongs to the technical field of joint dispatching operation and centralized control containing widely distributed energy. In order to solve the problems of power grid congestion, frequency fluctuation and economic loss caused by wind power uncertainty, a profit model including thermal power, wind power and electric vehicle battery sub-income and cost is constructed, and maximization of the total profit of the system is taken as a core target. By accurately deciding output distribution of various energy units such as thermal power, wind power and an electric vehicle battery and combining the real-time energy level of the electric vehicle battery, flexible adjustment of the power grid frequency is realized. And an efficient sequential quadratic programming algorithm is adopted to solve the model, and finally a wind power-thermal power-electric vehicle collaborative power supply optimization scheme is obtained. According to the invention, the economic benefit of the system and the stable operation of the power grid are effectively balanced, the utilization efficiency of energy storage resources is remarkably improved, and the anti-interference capability of the system to deal with uncertainty is greatly enhanced.
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Citation Information

Patent Citations

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    CN116187702A