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Single Source Multi-Frequency AC-AC Converter for Induction Cooking Applications

Author

Listed:
  • Pradeep Vishnuram

    (Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Chennai 603203, India)

  • Suchitra Dayalan

    (Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Chennai 603203, India)

  • Sudhakar Babu Thanikanti

    (Department of Electrical and Electronics Engineering, Chaitanya Bharathi Institute of Technology (CBIT), Hyderabad 500075, India)

  • Karthik Balasubramanian

    (Design and Engineering (Electrical), Offshore Technology Development Private Limited, Keppel Offshore and Marine Limited, Singapore 629353, Singapore)

  • Benedetto Nastasi

    (Department of Planning, Design, and Technology of Architecture, Sapienza University of Rome, Via Flaminia 72, 00196 Rome, Italy)

Abstract

In recent years, induction heating (IH) applications aided by electronic power control have gained significance. Particularly, for cooking applications, an appropriate control technique is required to feed power from a single source to multiple loads with minimum switching losses. Additionally, when multiple loads are used, it requires independent control and operation for each of the loads. The main idea of this work is to develop a single-stage AC-AC converter topology to feed power to multiple loads independently with a single source, with a reduced number of switching devices and with minimum switching losses. The proposed topology uses a frequency bifurcation concept to feed power to multiple loads by placing the transmitting coil and work coil at a distance of 3 cm. The source is resonated at a 25 kHz switching frequency, with the designed bifurcated frequencies of 20 kHz and 33 kHz. The resonant capacitors are appropriately chosen to operate at those frequencies. For real-time applications, simultaneous and independent power control are inevitable in multi load-fed IH applications. This is achieved through a pulse density modulation scheme with minimum switching losses. The simulation of the proposed system is performed in MATLAB/Simulink, and also the 1 kW system is validated using a PIC16F877A microcontroller. The real-time thermal variation in the load is also recorded using a FLIR thermal imager. The experimental and simulation results are observed, and the obtained efficiency of the system is plotted for various duty cycles of pulse density modulation control.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:4799-:d:609946
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    References listed on IDEAS

    as
    1. Sang Min Park & Eunsu Jang & Dongmyoung Joo & Byoung Kuk Lee, 2019. "Power Curve-Fitting Control Method with Temperature Compensation and Fast-Response for All-Metal Domestic Induction Heating Systems," Energies, MDPI, vol. 12(15), pages 1-16, July.
    2. Héctor Sarnago & Óscar Lucía & Iulian O. Popa & José M. Burdío, 2021. "Constant-Current Gate Driver for GaN HEMTs Applied to Resonant Power Conversion," Energies, MDPI, vol. 14(9), pages 1-10, April.
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    Citations

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    Cited by:

    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. 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.

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