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Investigation on Performance of Various Power Control Strategies with Bifilar Coil for Induction Surface Melting Application

Author

Listed:
  • Alagarsamy Sureshkumar

    (Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Chennai 603 203, India)

  • Ramachandiran Gunabalan

    (School of Electrical Engineering, VIT Chennai, Chennai 600 127, India)

  • Pradeep Vishnuram

    (Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Chennai 603 203, India)

  • Sridhar Ramsamy

    (Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Chennai 603 203, India)

  • Benedetto Nastasi

    (Department of Planning, Design and Technology of Architecture, Sapienza University of Rome, 00196 Rome, Italy)

Abstract

In recent years, induction heating applications assisted by electronic power control have been very appealing. For melting applications, induction heating is widely used as it seems to be appropriate and provides higher efficiency, zero pollutants, non-contamination of material, etc. in comparison with conventional heating. The conventional variable frequency control scheme is not sufficient for melting applications because of its high switching loss, low efficiency, and lower heat rate. A superlative control technique is required to control the output power smoothly, for a high heating rate with minimum power loss, and to lower the number of components. In this paper, a capacitorless self-resonating bifilar coil is proposed for induction surface melting applications. The performance of the system in terms of modular losses, heat rate, and efficiency is analyzed for various power methods such as pulse duty cycle control, phase shift control, pulse density modulation control, and asymmetric duty cycle control. An experimental validation is performed for the 1 kW prototype, and the heating rate, efficiency, and modular losses are calculated. The control technique is digitally validated using a PIC16F877A microcontroller with 30 kHz switching frequency. The temperature distribution is analyzed using a FLIR thermal imager. Among the tested methods, pulse density modulation-based control provides smooth and varied power control from 0% to 100% with minimum modular losses. The efficiency of the system is 89% at a rated output power and is greater than 85% for pulse density modulation control with a fast heating rate.

Suggested Citation

  • Alagarsamy Sureshkumar & Ramachandiran Gunabalan & Pradeep Vishnuram & Sridhar Ramsamy & Benedetto Nastasi, 2022. "Investigation on Performance of Various Power Control Strategies with Bifilar Coil for Induction Surface Melting Application," Energies, MDPI, vol. 15(9), pages 1-25, April.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:9:p:3301-:d:806816
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    References listed on IDEAS

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    1. Pradeep Vishnuram & Gunabalan Ramachandiran & Thanikanti Sudhakar Babu & Benedetto Nastasi, 2021. "Induction Heating in Domestic Cooking and Industrial Melting Applications: A Systematic Review on Modelling, Converter Topologies and Control Schemes," Energies, MDPI, vol. 14(20), pages 1-34, October.
    2. Pradeep Vishnuram & Suchitra Dayalan & Sudhakar Babu Thanikanti & Karthik Balasubramanian & Benedetto Nastasi, 2021. "Single Source Multi-Frequency AC-AC Converter for Induction Cooking Applications," Energies, MDPI, vol. 14(16), pages 1-21, August.
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    Cited by:

    1. Huabin Song & Youhua Wang & Jiangpai Peng & Chengcheng Liu, 2022. "Study on the Uniformity of Temperature Distribution of Transverse Flux Induction Heating Based on a New Magnetic Pole," Energies, MDPI, vol. 15(19), pages 1-15, October.
    2. Benedetto Nastasi & Andrea Mauri, 2022. "Energy Consumption in a Smart City," Energies, MDPI, vol. 15(20), pages 1-3, October.

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