A three-phase voltage dynamic regulation control method and system for a comprehensive experimental building

By automatically detecting and predicting three-phase voltages in the experimental building and dynamically adjusting with the SVG device, the voltage imbalance caused by the increase or decrease of the equipment is solved, and the reduction of power loss and the safe operation of the power consumption equipment is achieved.

CN119765396APending Publication Date: 2025-04-04河北省疾病预防控制中心(河北省卫生检测中心河北省医学科学院河北省职业病防治院河北省预防医学科学院)
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Patent Information

Application Number
CN202411917504.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

The increase or decrease of equipment in the experimental building leads to unbalanced three-phase voltage distribution, increasing the power loss of lines and distribution transformers, and affecting the safe operation of power equipment.

Method used

After the experimental equipment is added or dismantled in the experimental building, the voltage detection equipment is used to automatically detect the three-phase voltage, predict the three-phase voltage through the neural network model, and determine the voltage deviation value and deviation ratio. When the voltage deviation exceeds the preset range, a voltage signal in the opposite direction is generated by the SVG device to achieve three-phase balance.

Benefits of technology

It realizes dynamic adjustment of three-phase voltage, reduces power loss, ensures the safe operation of electrical equipment, and meets power supply and use needs.

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Abstract

The present invention discloses a three-phase voltage dynamic regulation control method and system for a comprehensive experimental building, which relates to the field of three-phase electrical technology, and includes the following steps: after adding or removing experimental equipment in the experimental building, using voltage detection equipment to automatically detect voltage at the detection position to obtain a three-phase voltage measurement sequence; obtaining a three-phase voltage prediction sequence through a neural network model; determining a voltage deviation value and a deviation ratio based on the three-phase voltage measurement sequence and the three-phase voltage prediction sequence; when the voltage deviation value and / or the deviation ratio exceeds a corresponding preset range, there is a three-phase voltage imbalance phenomenon; pre-processing a difference signal obtained based on the voltage deviation value, and controlling an SVG device to generate a voltage signal that is equal in size and opposite in direction to the difference signal, so as to achieve three-phase balance. The present invention requires low personnel costs, more accurate detection results, better real-time performance, and can realize dynamic regulation and control of three-phase voltage imbalance to meet power supply requirements and usage needs.
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