A reactive power control method, device and equipment of a direct current converter station and a medium

By constructing a reactive power control optimization model and using the PSO-BA algorithm to adjust the output power of reactive power equipment, combined with multi-scale adaptive convolutional neural networks to predict voltage stability, the problem of insufficient reactive power in DC transmission lines was solved, thereby improving the safety and stability of the power grid and the operational safety of transformers.

CN117791692BActive Publication Date: 2026-07-10CHINA SOUTHERN POWER GRID EXTRA HIGH VOLTAGE POWER TRANSMISSION CO LIUZHOU BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA SOUTHERN POWER GRID EXTRA HIGH VOLTAGE POWER TRANSMISSION CO LIUZHOU BRANCH
Filing Date
2023-12-28
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Insufficient reactive power in DC transmission lines leads to voltage fluctuations, affecting the safety and stability of the power grid. Existing deep learning methods are not ideal in reactive power optimization, and frequent operation of transformers in converter stations generates electric arcs, affecting safe operation.

Method used

By acquiring the operating status data of the DC converter station, a reactive power control optimization model and constraints are constructed. The target output value is calculated using the PSO-BA algorithm, the output power of the reactive power equipment is adjusted, and the voltage stability is predicted by combining a multi-scale adaptive convolutional neural network to optimize the reactive power control strategy.

Benefits of technology

This effectively reduces the frequent operation of transformers in the converter station, improves voltage transient stability, ensures the stable operation of the DC converter station, and reduces network losses.

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Abstract

The application discloses a reactive power control method, device and equipment of a direct current converter station and a medium. The method comprises the following steps: obtaining operation state data of the direct current converter station; constructing a reactive power control optimization model and corresponding constraint conditions according to the operation state data and a preset optimization target; calculating a target output value corresponding to the reactive power control optimization model under the constraint conditions; and adjusting the output power of reactive power equipment in the direct current converter station according to each target output value. Thus, the frequent actions of the converter station transformer for keeping the direct current voltage within a reasonable range are effectively reduced, the voltage transient stability is improved, and the stable operation of the direct current converter station is effectively ensured.
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