Site Application of Comprehensive Defense Device in Medium Frequency Induction Furnace udner Serious Distortion of Power Supply Voltage

LU Wei; HUANGFU Linggang; ZHAO Lufei

doi:10.14044/j.1674-1757.pcrpc.2025.05.013

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Site Application of Comprehensive Defense Device in Medium Frequency Induction Furnace udner Serious Distortion of Power Supply Voltage

Research on System Application | 更新时间：2025-10-30

- Site Application of Comprehensive Defense Device in Medium Frequency Induction Furnace udner Serious Distortion of Power Supply Voltage
- Power Capacitor & Reactive Power Compensation Vol. 46, Issue 5, Pages: 114-121(2025)
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- DOI：10.14044/j.1674-1757.pcrpc.2025.05.013
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- Received：23 April 2025，
  
  Published：25 October 2025
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LU Wei, HUANGFU Linggang, ZHAO Lufei. Site Application of Comprehensive Defense Device in Medium Frequency Induction Furnace udner Serious Distortion of Power Supply Voltage[J]. Power Capacitor & Reactive Power Compensation, 2025, 46(5): 114-121.
DOI：

LU Wei, HUANGFU Linggang, ZHAO Lufei. Site Application of Comprehensive Defense Device in Medium Frequency Induction Furnace udner Serious Distortion of Power Supply Voltage[J]. Power Capacitor & Reactive Power Compensation, 2025, 46(5): 114-121. DOI： 10.14044/j.1674-1757.pcrpc.2025.05.013.

摘要

中频感应电炉作为金属熔炼的核心设备，其非线性负载特性导致电网电压严重畸变，表现为谐波含量超标（如5次、7次谐波电流畸变率可达20%以上）、电压波动和功率因数低下。这种电能质量问题不仅影响设备运行效率，还可能引发生产事故。本文结合某冶炼公司2024年实际案例，探讨基于综合防御装置技术的现场应用与效果。

Abstract

Medium frequency induction furnace is the core equipment for metal melting. However，its nonlinear load characteristics lead to severe distortion of voltage in the power grid，manifested as excessive harmonic content（such as 5th and 7th harmonic current distortion rates are over 20%），low voltage fluctuations and power factor. This type of power quality issue not only affects operation efficiency of equipment，but may also cause production accidents. In this paper，the on-site application and effectiveness based on comprehensive defense device technology are explored in combination with the actual case of a certain smelting company in 2024.

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references

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