AGC signal intelligent correction and control method, device, equipment and medium

By collecting multi-source heterogeneous data and using digital twin models and incremental PID algorithms for intelligent correction and control of AGC commands, the problems of insufficient signal accuracy and poor adaptability of prediction models in AGC control of thermal power units have been solved. This has enabled accurate power prediction and dynamic compensation of the unit, improving the quality of AGC regulation and the stability of unit operation.

CN121529795APending Publication Date: 2026-02-13HUANENG XINHUA POWER GENERATION CO LTD
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Patent Information

Application Number
CN202511778446.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-28
Publication Date
2026-02-13

AI Technical Summary

Technical Problem

The existing AGC control of thermal power units suffers from insufficient signal accuracy and poor adaptability of prediction models, resulting in substandard AGC performance indicators, which affects the economic benefits of power plants, increases the risk of equipment loss, and makes it difficult to effectively cope with frequency fluctuations caused by the consumption of new energy.

Method used

By collecting multi-source heterogeneous data from the power grid dispatching side and the power plant side, and using digital twin models and incremental PID algorithms to intelligently correct and control AGC command signals, the corrected AGC command signals are generated and incrementally superimposed onto the unit's distributed control system to achieve precise control across the entire load range.

Benefits of technology

It improves the response speed and tracking accuracy of AGC commands, reduces fluctuations in the power regulation process, optimizes the AGC regulation quality, and ensures that the unit can achieve stable and economical operation while meeting the grid dispatch requirements.

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Abstract

The invention provides an AGC signal intelligent correction and control method, device, equipment and medium, and the method comprises the steps: collecting an AGC instruction signal of a power grid dispatching side, an actual power feedback signal of a power plant side and a unit operation state parameter, and constructing multi-source heterogeneous data; inputting the multi-source heterogeneous data into a pre-trained digital twinborn model to obtain a predicted value of the real power of the unit; calculating a real-time deviation between the predicted value of the real power and the actual power feedback signal, and dynamically compensating the AGC instruction signal based on the real-time deviation to generate a corrected AGC instruction signal; and on the basis of the corrected AGC instruction signal, a feedforward control signal is generated, and is superposed to a basic control instruction of a unit distributed control system (DCS) in an increment form, so that full-load section accurate control is realized, and the problems of accurate correction of the AGC signal, accurate prediction of real power and dynamic compensation are solved.
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