A High-Frequency Resonant Inverter Using Current-Vector Control Scheme and Its Performance Evaluations

Savary, Pierre; Nakaoka, Mutsuo; Maruhashi, Toru

doi:10.1109/tie.1987.350961

Cited by 10 publications

(2 citation statements)

References 2 publications

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“…The resonant and power factor correction (PFC) tuned capacitor C o is connected in series with the IH load [16]. The two inverters U 1 and U 2 produce the two resonant link currents i L1 and i L2 respectively, which are controlled by changing the PS angle φ in the IGBT gate pulse signals between Q 1 -Q 2 and Q 3 -Q 4 [17] [18]. Synthesizing the resonant link currents i L1 and i L2 yields the load current i o with a lower harmonic distortion.…”

Section: A New Zvs Hf Resonant Inverter a Circuit Descriptionmentioning

confidence: 99%

A New Current Phasor-Controlled ZVS Twin Half-Bridge High-Frequency Resonant Inverter for Induction Heating

Mishima

Takami

Nakaoka

2014

IEEE Trans. Ind. Electron.

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A novel soft-switching high-frequency (HF) resonant (HF-R) inverter for induction heating (IH) applications is presented in this paper. By adopting the current phasor control of changing a phase shift (PS) angle between two half-bridge inverter units, the IH load resonant current can be regulated continuously under the condition of wide range soft-switching operations. In addition to this, the dual mode power regulation scheme based PS angle control & asymmetrical pulse-widthmodulation (PWM) in one inverter unit is proposed for improving the efficiency in low output power settings. The essential performances on the output power regulation and soft-switching operations are demonstrated in an experiment using its 1 kW-60 kHz HF-R inverter prototype, then the topological validity is evaluated from a practical point of view. Index Terms-induction heating (IH), high-frequency (HF) resonant (HF-R) inverter, zero voltage soft-switching (ZVS), current phasor, phase shift (PS) angle control, asymmetrical PWM.

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Section: A New Zvs Hf Resonant Inverter a Circuit Descriptionmentioning

confidence: 99%

A New Current Phasor-Controlled ZVS Twin Half-Bridge High-Frequency Resonant Inverter for Induction Heating

Mishima

Takami

Nakaoka

2014

IEEE Trans. Ind. Electron.

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“…HE basic induction heating converters are based on resonant inverters in which the load circuit is formed by the heating coil, its equivalent loss resistance, and a series capacitor, in a series resonant inverter (SRI) [1] - [3] or in parallel, in a parallel resonant inverter (PRI) [4] - [7]. Both are used for heating, welding, melting, hardening, and more metal heat treatment applications.…”

Section: Introductionmentioning

confidence: 99%

Optimal LLC Inverter Design With SiC MOSFETs and Phase Shift Control for Induction Heating Applications

Esteve

Jordán

Dede³

et al. 2022

IEEE Trans. Ind. Electron.

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This work presents the analysis of a converter based on an LLC resonant output inverter and its optimal design used in induction heating applications. The new optimal design method improves several operating parameters that leads to an optimization of the dimensioning of the components of the converter. Additionally, this converter achieves an output power factor that can be considered optimal since it allows to minimize the reactive power of the resonant circuit components and reduces the rms values of the output current of the inverter and the current of its switching devices in relation to that found in traditional designs. A complete study of the circuit based on classic models is carried out to introduce simple rules for the design of this type of inverter for induction heating applications and to control its output power based on a phase shift system (PS). Since the inverter is made with silicon carbide (SiC) MOSFET transistors, an efficiency greater than 99% is reached. The experimental results were obtained from the test of a 12 kW 20 kHz converter for induction heating application.

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Resonant Inverters

Séguier¹,

Labrique²

1993

Power Electronic Converters

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A High-Frequency Resonant Inverter Using Current-Vector Control Scheme and Its Performance Evaluations

Cited by 10 publications

References 2 publications

A New Current Phasor-Controlled ZVS Twin Half-Bridge High-Frequency Resonant Inverter for Induction Heating

A New Current Phasor-Controlled ZVS Twin Half-Bridge High-Frequency Resonant Inverter for Induction Heating

Optimal LLC Inverter Design With SiC MOSFETs and Phase Shift Control for Induction Heating Applications

Resonant Inverters

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