Dual frequency inverter configuration for multiple‐load induction cooking application

Papani, Sharath Kumar; Vishwanathan, N.; Murthy, Bhagwan K.

doi:10.1049/iet-pel.2014.0114

Cited by 38 publications

(29 citation statements)

References 26 publications

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“…The circuit diagram of dual‐frequency FB inverter is shown in Figure 26. In Ref., 44 the authors have proposed a novel control technique for the FB inverter to handle two loads. In this system, two loads are considered with different resonant frequency in which one load is designed to operate at low frequency and the other at high frequency.…”

Section: Two‐stage Induction Heating Power Supply Feeding Power To Mumentioning

confidence: 99%

“…Asymmetrical duty cycle (ADC) control is a constant frequency control, which is used to vary the output power without EMI problem. [43][44][45][46] In this technique, the width of the positive and negative cycles of the output voltage is made asymmetrical to control the output power. The main drawback is that even harmonics are injected in the source side.…”

Section: Introductionmentioning

confidence: 99%

“…Domestic applications 5,14,16,35,42,44,54 : The power converter used in domestic applications should have higher efficiency, low cost and medium operating frequency in the range of 1 to 50 kHz. The control and modulation algorithm comprises of power factor correction, harmonics control, multi-load management and temperature control problems to feed the power to the load as per requirement.…”

Section: Introductionmentioning

confidence: 99%

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A comprehensive overview of power converter topologies for induction heating applications

Vishnuram

Gunabalan

Sridhar

et al. 2020

Int Trans Electr Energ Syst

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The concept of induction heating is slowly entrenching as it has the traits of homogeneous heating, zero pollution and higher power density. To achieve these traits convincingly in reality, there is a need to develop energy efficient converter topologies, which aid in achieving power regulation of soft switching and very high frequency operation. This paper presents the salient features of converter topologies used for domestic and industrial heating applications with a focus on its stage-wise power conversion, power density, load handling capacity, soft switching, reliability and size. The performance of these topologies is analysed in terms of converter switching frequency, power rating, modulation techniques, flicker, user performance and efficiency. Moreover, this review paper predicts the future trends associated with the adaptation of wide band-gap power semiconductor materials, multi-output topologies, variable frequency control scheme with minimum losses and filter design to improve source-side power factor. The detailed technology review will be extremely useful for researchers, designers and engineers in choosing the appropriate topology for the chosen application.

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Section: Two‐stage Induction Heating Power Supply Feeding Power To Mumentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A comprehensive overview of power converter topologies for induction heating applications

Vishnuram

Gunabalan

Sridhar

et al. 2020

Int Trans Electr Energ Syst

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“…In [9–12], the multi‐load systems with single transmitting coil, multiple transmitting coils or multiple repeater coils were discussed in detail, and the feasibility of the system scenario with two or more receivers was validated. In order to identify different loads in the system and further distribute the power to loads, the concept of multi‐frequency was proposed, and the multiple transmitting coils operating at different resonant frequencies were adopted to transfer power to multiple receivers [13–15]. In [16], the fundamental and third harmonics were used for power transmission, and it proved that the performance of multi‐frequency systems is better than single‐frequency systems at same power level.…”

Section: Introductionmentioning

confidence: 99%

Selected harmonic elimination‐derived multi‐frequency pulse width modulation control strategy for multi‐load MCR WPT system with single transmitting coil

Chen

Han

2020

IET power electron.

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Magnetically coupled resonant wireless power transfer (MCR WPT) has become the research focus in recent years because of its safety, simplicity and high efficiency. In multi‐load applications, the ‘one‐to‐one’ charging scenario is difficult to meet the requirement of load diversity, and the development of the ‘one‐to‐many’ charging has become increasingly important. In this study, a multi‐load MCR WPT system with single transmitting coil and multiple receiving coils was investigated. To discriminate the loads for targeted power distribution, each receiving coil cascaded by the load is designed to operate at an individual frequency. For this purpose, a single‐phase full‐bridge inverter and a multi‐frequency pulse width modulation (MFPWM) control strategy were used to generate a multi‐frequency mixed excitation voltage that servers as the input of the single transmitting coil. In view of the different voltage features, two control modes defined as the unipolar and the bipolar modes were presented, and the characteristics of these two modes were analysed. To further reduce the harmonic content in the voltage waveform, a phase‐shifted MFPWM control strategy was proposed, and the design guideline of the phase‐shifted angle was given. Finally, a dual‐load MCR WPT system was taken as an example for the experimental verification, which confirms the correctness and effectiveness of the proposed control strategies.

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“…Therefore, manufacturers have to invest more construction costs for achieving required multi-output units. To expand a number of output units, multioutput or two-output inverters have been presented in [11][12][13][14][15] for overcoming limitation of conventional inverters. Two-output inverters could provide two-output units simultaneously and independently as well as reduce costs and components in circuit comparing with two conventional inverters.…”

Section: Introductionmentioning

confidence: 99%

Implementation of two‐output three‐level series‐resonant inverter for induction melting application

Meesrisuk¹,

Jangwanitlert²,

Suwan-ngam³

2018

IET Power Electronics

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This study aims to present a two-output three-level series-resonant inverter together with an implementation and experiments for an induction melting application. A three-level circuit is applied for each branch of inverter in order to decrease the voltage stress on switching devices. A phase-shifted pulse-width modulation (PSPWM) with variable frequency control is applied for providing and maintaining a zero-voltage switching condition over a wide load range. In addition, the PSPWM could provide symmetrical output voltage and current waveforms that result in decreasing the THD v and THD i of output waveforms and harmonic losses of high-frequency transformer cores comparing to other PWM schemes. Finally, the prototype was designed, built, and tested to verify the consistency between the experimental results and theories of the proposed inverter.

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Dual frequency inverter configuration for multiple‐load induction cooking application

Cited by 38 publications

References 26 publications

A comprehensive overview of power converter topologies for induction heating applications

A comprehensive overview of power converter topologies for induction heating applications

Selected harmonic elimination‐derived multi‐frequency pulse width modulation control strategy for multi‐load MCR WPT system with single transmitting coil

Implementation of two‐output three‐level series‐resonant inverter for induction melting application

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