Open-loop control of full-bridge resonant inverter for induction metal surface heating

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2014-10-01 DOI:10.1109/IECON.2014.7048978

H. Zeroug, B. Meziane

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引用次数: 3

Abstract

In this paper, several control techniques for induction metal treating are examined to assess their performances using resonant series inverter. In fact, many types of steel are treated with heat to increase toughness and resistance to wear. Induction heating seems to be appropriate and provides several advantages in comparison with conventional techniques. In this paper, these techniques are evaluated comprehensively, through simulation and experiment, and compared to each other in terms of heating rate and efficiency, using one metal sample hardened to 1mm in depth up to 700°C, with a 400 W power supply. The simulation results obtained are satisfactory, and agree with those of the experiments. Furthermore, the study shows the control strategy based on frequency may not be sufficient, but should be associated with other control techniques in order to address appropriately the hardening process, bearing in mind processing time and efficiency. The strategy with frequency associated with phase shift control appears to fit well metal treating during the hardening, and can be easily tailored to its hardening requirements, compared to the other techniques.

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感应金属表面加热全桥谐振逆变器的开环控制

本文研究了几种感应金属处理的控制技术，并利用谐振串联逆变器对其性能进行了评价。事实上，许多类型的钢都经过热处理以增加韧性和耐磨性。感应加热似乎是合适的，与传统技术相比，它提供了几个优点。在本文中，通过模拟和实验对这些技术进行了全面的评估，并在加热速率和效率方面进行了比较，使用一个金属样品在700°C下硬化至1mm深度，使用400w电源。仿真结果与实验结果吻合较好。此外，研究表明，基于频率的控制策略可能是不够的，但应该与其他控制技术相结合，以便在考虑加工时间和效率的情况下适当地解决硬化过程。与其他技术相比，与相移控制频率相关的策略似乎很适合淬火过程中的金属处理，并且可以轻松地根据其硬化要求进行调整。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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