Improving the Reliability of Series Resonant Inverters for Induction Heating Applications

Esteve, V.; Jordán, J.; Sanchis-Kilders, E.; Dede, E.J.; Maset, E.; Ejea, J.B.; Ferreres, A.

doi:10.1109/tie.2013.2278509

Cited by 68 publications

(38 citation statements)

References 14 publications

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“…This causes some problems in size and cost. In order to overcome these problems, inverters with power control by frequency variation (FV) [7] pulse width modulation (PWM) [8] or phase-shift variation (PS) [9] are normally used to regulate the output power and using a single diode bridge rectifier as a dc voltage source.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Pulse-Density-Modulated Power Control for High-Frequency Induction Heating Inverters

Esteve

Jordán

Sanchis-Kilders

et al. 2015

IEEE Trans. Ind. Electron.

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This paper presents a 100 kW, 100 kHz IGBT series resonant inverter for induction heating applications that uses an improved power control scheme based on the standard pulse density modulation (PDM). This standard power control is a good solution for the design of high frequency inverters because the output power factor is near to unity in a wide range of output power, resulting in a great reduction of switching losses and electromagnetic noise. However, the output current can be in discontinuous mode especially for resonant loads of low quality factor or for low output power or low load operation. This output current fluctuation produces a high output current ripple that can lead to an increase of power losses and loss of accuracy of the response of the frequency tracking control. The proposed control strategy, called enhanced pulse density modulation (EPDM), provides twice less output current ripple, thus resulting in an improved inverter behaviour in terms of frequency tracking accuracy and energy efficiency. Experimental tests have been made in order to compare the EPDM strategy with standard power control schemes.

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Section: Introductionmentioning

confidence: 99%

Enhanced Pulse-Density-Modulated Power Control for High-Frequency Induction Heating Inverters

Esteve

Jordán

Sanchis-Kilders

et al. 2015

IEEE Trans. Ind. Electron.

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“…In this type of inverters the switching devices are turned ON and OFF when the voltage or its current become zero, resulting in low switching losses. However, Full Bridge SRI is very much reliable, cost-effective and offers various power control techniques [12].…”

Section: Fig1 Power Conversion Flow In An Ih Systemmentioning

confidence: 99%

Power control techniques used in high frequency induction heating applications

Parida

Kumari

Bhaskar

et al. 2015

2015 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2015]

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Resonant inverters are widely used in induction heating applications. Series Resonant Inverter (SRI) fed with voltage source is very much reliable, cost-effective and provides various power control techniques. Different power control schemes like phase shift control (PSC), asymmetrical duty cycle (ADC) control, asymmetrical voltage cancellation (AVC) control, pulse density modulation (PDM) control are normally used at SRI for high frequency induction heating. In this paper a new hybrid control technique by combining PSC and PDM is analyzed. The new control technique overcomes the drawback of individual scheme and provides a wide range of power control. The analyses of all the control techniques are verified through MATLAB simulation results

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“…In the literature, one can find hard switching topologies used for assessment of soft switching loss [11]. Likewise, the soft switching losses of a converter are often calculated using the input from datasheet, which is actually meant for the hard switching case, for example, the characteristic curve of turn-off energy loss as a function of the switching current is used in [12]. Furthermore, a resonant converter is employed with an inductive load in [13] and an LC load in [14].…”

Section: Introductionmentioning

confidence: 99%

Hard and soft switching losses of a SiC MOSFET module under realistic topology and loading conditions

Tiwari

Langelid

Midtgård

et al. 2017

2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe)

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This paper investigates the switching performance of a 1.2 kV half-bridge SiC MOSFET module from Sanrex. Unlike in a standard SiC MOSFET module, where the MOSFET and the anti-parallel diode chips are fabricated separately, in the chosen MOSFET module (FCA150XB120), both the MOSFET and the diode are fabricated on a single chip. The device is characterized under both hard and soft switching conditions. For the hard switching characterization, an inductive clamped buck converter is employed, whereas for the soft switching characterization, a resonant half-bridge converter with LC load is used. A comparison of the hard switching loss is performed with the soft switching loss at the same current. This comparison provides insight into the significance of employing an appropriate circuit topology, load and control scheme to reflect the waveforms as in a real application, in order to get a more accurate assessment of the switching losses that will occur. This insight is the main contribution of this paper.

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Improving the Reliability of Series Resonant Inverters for Induction Heating Applications

Cited by 68 publications

References 14 publications

Enhanced Pulse-Density-Modulated Power Control for High-Frequency Induction Heating Inverters

Enhanced Pulse-Density-Modulated Power Control for High-Frequency Induction Heating Inverters

Power control techniques used in high frequency induction heating applications

Hard and soft switching losses of a SiC MOSFET module under realistic topology and loading conditions

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