A high-voltage frequency converter digital twin modeling system and method

By constructing a multi-physics coupled twin model and a degradation model embedding harmonic aging factors, the problems of virtual-real mapping deviation and dynamic optimization of health status in the digital twin model of high-voltage frequency converters are solved, and high-precision equipment condition assessment and harmonic control are achieved.

CN122452299APending Publication Date: 2026-07-24HBIS CHENGDE VANADIUM TITANIUM NEW MATERIAL CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HBIS CHENGDE VANADIUM TITANIUM NEW MATERIAL CO LTD
Filing Date
2026-04-02
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing digital twin models of high-voltage frequency converters are only single electrical characteristic models and cannot map non-ideal operating conditions. As the equipment operates for longer periods, the deviation between the model and the physical entity widens, making it impossible to achieve dynamic optimization of the equipment's health status and harmonic control.

Method used

A multi-physics coupled twin model is constructed, a degradation model with harmonic aging factors is embedded, and a health-driven low-harmonic collaborative closed-loop control mechanism is established to realize dynamic updating of model parameters and assessment of equipment health status.

Benefits of technology

It significantly improves the accuracy of virtual-real mapping, solves the problem of static model deviation, realizes deep integration of operation and maintenance with harmonic control, and enhances the practical value of system engineering.

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Abstract

The application relates to a high-voltage frequency converter digital twin modeling system and method, and belongs to the technical field of digital twin equipment and methods. The technical scheme of the application is that a data acquisition module and a data preprocessing module are connected with each other, and a digital twin modeling module is connected with the data preprocessing module and a component degradation modeling module respectively. The application has the beneficial effects that by constructing a multi-physical-field coupling twin model, the problem of large simulation deviation of a single electrical model under non-ideal working conditions is solved, and the virtual-to-real mapping precision is greatly improved; by embedding a degradation model with a harmonic aging factor, the dynamic updating of model parameters with the equipment state is realized, and the problem of continuous expansion of the deviation of a static model with the running time is solved; by building a health-driven low-harmonic collaborative closed-loop control mechanism, the operation and maintenance and harmonic control are deeply integrated, and the practical value of the system engineering is significantly improved.
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