A high efficiency of a Class-D resonant inverter high power factor for induction heating multi-coils hardening application

Haema, Juthathip; Bilsalam, A.; Ekkaravarodome, Chainarin; Jirasereeamornkul, Kamon

doi:10.1109/peds.2013.6527140

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…It can be concluded that, the introduction of the filter has helped not only to reduce of the dc link current ripple, but also to improve the system input power factor. These findings are similar to those published in [20]. Furthermore, this trend is in good agreement with the simulation results reported in section II.…”

Section: F Discussion Of the Experimental Resultssupporting

confidence: 93%

Comprehensive Power Control Performance Investigations of Resonant Inverter for Induction Metal Surface Hardening

Meziane

Zeroug

2016

IEEE Trans. Ind. Electron.

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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, control techniques for full bridge resonant inverter aimed to induction heating are evaluated comprehensively, through simulation and experiment, and compared to each other in terms of heating rate, efficiency and input power factor, using one metal sample hardened to 1mm in depth up to 600°C, with a 400 W power supply. These techniques are implemented digitally in way to allow a high resolution power control. 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, efficiency and input power factor. The strategy with the input DC voltage and the pulse density modulation (PDM) controls appear to suit the surface metal treating for large temperature variation, and enable the heating process to perform well when compared to the other techniques based on phaseshift and PWM duty cycle control.

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Section: F Discussion Of the Experimental Resultssupporting

confidence: 93%

Comprehensive Power Control Performance Investigations of Resonant Inverter for Induction Metal Surface Hardening

Meziane

Zeroug

2016

IEEE Trans. Ind. Electron.

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“…In an inverter system for a motor drive, the technologies for compact size and efficient power conversion has been enthusiastically developed in respond to the large demand of low cost and energy saving [1][2][3]. The inverter system is composed of power devices such as high voltage switches and control system circuits for a motor drive with low-voltage operation.…”

Section: Introductionmentioning

confidence: 99%

An isolated DC power supply free compact GaN inverter module

Kawai

Nagai

Tabata

et al. 2015

2015 IEEE 11th International Conference on Power Electronics and Drive Systems

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A low-cost and small size inverter module is required for a low-power motor system. In this work, we developed a compact GaN inverter module that is composed of GaN-GIT power devices and DBM (Drive-by-Microwave) gate drivers. The fabricated compact 5kW GaN inverter module successfully reduced its foot print for the gate drivers by 55% because it doesn't require an isolated DC power source. The fabricated inverter module successfully realized 5.0kW motor drive and achieved the higher power conversion efficiency over a 96% under a low-output power (<1.0kW) due to the no threshold offset voltage of the GaN-GIT power device.I.

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Resonant inverter power and coil parameters determination for metal surface hardening

Attab

Zeroug

Meziane

2015

2015 IEEE Industry Applications Society Annual Meeting

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A high efficiency of a Class-D resonant inverter high power factor for induction heating multi-coils hardening application

Cited by 4 publications

References 3 publications

Comprehensive Power Control Performance Investigations of Resonant Inverter for Induction Metal Surface Hardening

Comprehensive Power Control Performance Investigations of Resonant Inverter for Induction Metal Surface Hardening

An isolated DC power supply free compact GaN inverter module

Resonant inverter power and coil parameters determination for metal surface hardening

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