电弧炉电极控制方法、装置、设备及存储介质

By calculating the voltage change rate and difference in real time in the electric arc furnace, and combining hysteresis control and PID control, the electrode position is optimized, which solves the problem of drastic load changes in the electric arc furnace, realizes dynamic adjustment of the electrode position, reduces short circuits and arc interruptions, and improves the stability and power supply efficiency of the electric arc furnace.

CN121876669BActive Publication Date: 2026-07-17DUNSHI MAGNETIC ENERGY TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DUNSHI MAGNETIC ENERGY TECH
Filing Date
2026-03-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

During the smelting process, the load of the electric arc furnace changes drastically. The conventional electrode control device has a slow dynamic response speed, which leads to frequent short circuits, arc interruptions and load flickering. In addition, the constant impedance control strategy causes three-phase current imbalance, which increases equipment losses.

Method used

The three-phase output voltage is determined by the output current and current loop of the three-phase control circuit of the electric arc furnace, and a drive signal is generated. By combining hysteresis control and PID control, the voltage change rate and difference are calculated in real time, the number of drive steps of the stepper motor is optimized, and the dynamic adjustment of the electrode position is realized. The control parameters are optimized by using a knowledge base and self-learning algorithm.

Benefits of technology

It improves the electrode's response speed to load changes, reduces the frequency of short circuits and arc interruptions, stabilizes the arc length, improves the balance of three-phase current, reduces electrode wear and furnace lining erosion, and enhances the operational stability and power supply efficiency of the electric arc furnace.

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Abstract

本发明提供一种电弧炉电极控制方法、装置、设备及存储介质，涉及电弧炉控制技术领域。该方法包括：基于电弧炉的三相控制电路的输出电流和电流环，确定三相输出电压，并基于三相输出电压生成三相控制电路的驱动信号；计算三相输出电压的变化率，以及与设定输出电压的差值；基于变化率、差值、滞环控制及PID控制，确定电弧炉的每相电极对应的步进电机的驱动步数，以基于每个驱动步数调节对应的电极的位置。本发明能够改善电弧炉的三相功率均衡性，降低电极损耗和炉衬侵蚀，延长设备寿命，提高电弧炉的运行稳定性和供电效率。
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Citation Information

Patent Citations

  • Automatic electrode lifting control method and device, terminal and storage medium

    CN115913014A

  • Controller, and apparatus, method and program for adjusting control parameter

    JP2008102720A