Oil pipeline heating method based on GBDT heat tracing power source frequency prediction

The GBDT algorithm predicts the optimal working frequency of the heating power supply in the oil pipeline, and combines the dual closed-loop control of temperature and current, the problem that the industrial frequency current in the skin effect heating tracing of the oil pipeline is difficult to meet the heating needs, and efficient and stable pipeline heating is achieved.

CN119761202AInactive Publication Date: 2025-04-04HARBIN INST OF TECH
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Patent Information

Application Number
CN202411926205.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-04-04
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the skin-effect heating process of oil pipelines, conventional power frequency currents are difficult to meet the heating needs, and are prone to cause three-phase imbalance in the power grid. Excessively high heating current frequency will increase the switching losses of the power supply power supply and reduce heating efficiency.

Method used

The GBDT-based heat-tracing power supply frequency prediction method is adopted to establish a GBDT frequency prediction model with the input current amplitude and pipeline size, predict the optimal operating frequency, and adopt a dual closed-loop control strategy of temperature and current to achieve efficient heating of the oil pipeline.

Benefits of technology

It effectively reduces non-essential power switch losses, improves heating efficiency, meets the heating needs of oil pipelines of different pipe diameters and sizes, reduces the impact on the power grid, and realizes constant temperature control.

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Abstract

The invention discloses an oil pipeline heating method based on GBDT heat tracing power source frequency prediction, and belongs to the technical field of application foundations combining artificial intelligence prediction and power conversion control. According to the method, the problem that when heat tracing is conducted on the oil pipeline through the skin effect, the output current amplitude is limited, so that the heating efficiency is reduced is solved, the optimal working frequency of the skin effect of the heat tracing power source is predicted through the GBDT algorithm, and a GBDT frequency prediction model with the current amplitude and the pipeline size as input is established; and double-closed-loop power supply control of the temperature current is performed based on the predicted frequency, so that efficient heating of the oil pipeline is realized. According to the method, the minimum frequency meeting the heating requirement is calculated, unnecessary power switch loss is effectively reduced, and the efficiency is high. The influence of a power grid is small, and constant-temperature control over the oil pipeline can still be achieved under the small current amplitude.
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