Induction Heating Appliances: Toward More Flexible Cooking Surfaces

Lucía, Óscar; Acero, J.; Carretero, C.; Burdío, J.M.

doi:10.1109/mie.2013.2247795

Cited by 143 publications

(64 citation statements)

References 34 publications

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“…The operation frequency has been normalized, f swn , with respect to f 0 . Although this wide range is not optimal considering efficiency and magnetics, it is mandatory in DIH because of the great power range to be controlled, from 50 W up to more than 3 kW [1]. It can be seen in Fig.2 that P i -relationship is non monotonic.…”

Section: Small-signal Modelmentioning

confidence: 99%

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Small-signal model of dual half-bridge series resonant inverter sharing resonant capacitor for domestic induction heating

Domínguez

Barragán

Otín

et al. 2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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The state-of-the-art of induction heating technology requires more and more multivariable control systems able to provide a suitable response for a wide set of vessels to be heated. The goal of this paper is to propose a small signal model of a multivariable system, a dual half-bridge series resonant inverter sharing a common resonant capacitor. A Phase Shift Square Wave Modulation (PSSWM) is considered to control the output power of two induction heating loads where the switching frequency and the phase shift are the control inputs. Thus, the topology to be controlled is a Two-Input-Two-Output (TITO) system that presents significant interactions between the inputs and the outputs. A transfer function matrix based on the harmonic balance approach is proposed and validated in simulation. Moreover, stability, output controllability and performance limitations are analyzed highlighting the control problems that arise in this particular application.

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Section: Small-signal Modelmentioning

confidence: 99%

“…These control systems must provide a robust performance independently of the induction loads characteristic variability [1].…”

Section: Introductionmentioning

confidence: 99%

Small-signal model of dual half-bridge series resonant inverter sharing resonant capacitor for domestic induction heating

Domínguez

Barragán

Otín

et al. 2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

View full text Add to dashboard Cite

show abstract

“…During this process, the effective voltage applied to the work coil becomes decreased due to the variation in the effective impedance of the load and the coil. The effective impedance also varies under the steady state operating conditions due to temperature, frequency, and alignment between coil-load assembly [15,16]. Maintaining the load voltage at the rated value without disturbing the resonant operation of the inverter plays an important role in the IH system during its initial loading and change in load parameter conditions [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Fuzzy logic based voltage control scheme for improvement in dynamic response of the class D inverter based high frequency induction heating system

Nagarajan¹,

Sathi²,

Vishnuram³

2016

Turk J Elec Eng & Comp Sci

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Abstract:In high frequency induction heating systems, the effective load parameters change during the different operating conditions. It is necessary to maintain constant input voltage to the induction heating load to improve the quality of the heating. The resonant based high frequency converter is generally used for these applications for the reduction of switching losses. The resonant condition is also affected during the variation in load parameters. The controller should provide a good voltage regulation with less response time and less overshoot during the loading conditions. In this paper, a load adaptive fuzzy logic control scheme is proposed to perform the voltage control of the high frequency inverter under variable load conditions. A frequency tracking control system is also employed for the inverter system using the phase lock loop. The phase lock loop ensures the resonant frequency operation of the inverter during the change in load parameters. The state space model of the system is discussed to study the inverter during different operating conditions. The fuzzy logic controller based closed loop control scheme is developed using the MATLAB simulation tool. The responses of the conventional and fuzzy logic controllers are studied for load voltage regulation and the effectiveness of the control schemes is verified. The dynamic behavior of the system is studied under no load and loaded conditions with the two controllers. The fuzzy based closed loop control scheme improves the dynamic response of the system compared to the conventional controller. The response of the induction heating system is validated with a hardware prototype. The results are presented in order to confirm the proposed control strategy.

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“…Since it is non-contact, the heating process does not contaminate the material being heated. It is also very efficient compared to the other heating methods, since the heat is actually generated inside the workpiece (Acero et al, 2008;Lucia, Acero, Carretero, & Burdio, 2013). This can be contrasted with the other heating methods where heat is generated with a flame or heating element, which is then applied to the workpiece.…”

Section: Introductionmentioning

confidence: 99%

“…Power control by variable frequency operation (Sarnago, Lucia, Mediano & Burdio, 2013a) has several disadvantages including high electromagnetic interference, poor utilization of the components and complex filtering of output voltage ripple. Fixed frequency control techniques (Sarnago Sarnago, Lucia, Mediano & Burdio, 2013b;Lucia et al, 2013) can overcome the above problems.…”

Section: Introductionmentioning

confidence: 99%

<b>Pulse Mask Controlled HFAC Resonant Converter for high efficiency Industrial Induction Heating with less harmonic distortion

Nagarajan¹,

Ramareddy²

2016

Acta Sci. Technol.

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ABSTRACT. This paper discusses about the fixed frequency pulse mask control based high frequency AC conversion circuit for industrial induction heating applications. Conventionally, for induction heating load, the output power control is achieved using the pulse with modulation based converters. The conventional converters do not guarantee the zero voltage switching condition required for the minimization of the switching losses. In this paper, pulse mask control scheme for the power control of induction heating load is proposed. This power control strategy allows the inverter to operate closer to the resonant frequency, to obtain zero voltage switching condition. The proposed high frequency AC power conversion circuit has lesser total harmonic distortion in the supply side. Modeling of the IH load, design of conversion circuit and principle of the control scheme and its implementation using low cost PIC controller are briefly discussed. Simulation results obtained using the Matlab environment are presented to illustrate the effectiveness of the pulse mask scheme. The obtained results indicate the reduction in losses, improvement in the output power and lesser harmonic distortion in the supply side by the proposed converter. The hardware results are in good agreement with the simulation results.

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Induction Heating Appliances: Toward More Flexible Cooking Surfaces

Cited by 143 publications

References 34 publications

Small-signal model of dual half-bridge series resonant inverter sharing resonant capacitor for domestic induction heating

Small-signal model of dual half-bridge series resonant inverter sharing resonant capacitor for domestic induction heating

Fuzzy logic based voltage control scheme for improvement in dynamic response of the class D inverter based high frequency induction heating system

<b>Pulse Mask Controlled HFAC Resonant Converter for high efficiency Industrial Induction Heating with less harmonic distortion

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