Power control techniques used in high frequency induction heating applications

Parida, Nibedita; Kumari, Veena; Bhaskar, Devara Vijaya; Maity, Tanmoy

doi:10.1109/iccpct.2015.7159378

Cited by 12 publications

(6 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To make the switching process closer to optimum, it is advisable to change the dead-time T DT between the SRI transistor control signals during the work process [6], [18]. In practice, under the steady-state mode the SRI operating frequency ω sw = (2π)/T sw is close to the resonance frequency = 1/√ of the series-resonant circuit.…”

Section: System Description and Operation Principle 21 System Configurationmentioning

confidence: 99%

Soft start-up strategy of pulse-density-modulated series-resonant converter for induction heating application

Herasymenko

Pavlovskyi

2021

IJPEDS

View full text Add to dashboard Cite

This paper presents a soft start-up strategy of pulse-density-modulated series-resonant converter for induction heating application. The pulse-density modulation (PDM) technique is widely used in converters based on voltage-source series-resonant inverters (SRIs) to control the output current or power. However, during a start-up process, PDM has some disadvantages both in inrush current limiting and providing a zero-voltage switching operation of SRI transistors. In the paper, different PDM techniques are considered and basic moments of PDM using within the start-up process are analyzed. A new soft start-up strategy of PDM converter for induction heating application is proposed. The main features of the proposed strategy include an interleaved or a stepped PDM control, an initial combination of PDM at the beginning of the start-up process, and an operating algorithm during the start-up process. The proposed strategy was verified by a 2.5 kW experimental setup of the pulse-density-modulated interleaved converter with an operating frequency from 50 kHz up to 100 kHz. Experimental results confirm the effectiveness of the proposed start-up strategy and show that the maximum current amplitude within start-up processes exceeds the maximum steady-state current amplitude by no more than 30%.

show abstract

Section: System Description and Operation Principle 21 System Configurationmentioning

confidence: 99%

Soft start-up strategy of pulse-density-modulated series-resonant converter for induction heating application

Herasymenko

Pavlovskyi

2021

IJPEDS

View full text Add to dashboard Cite

show abstract

“…IH technologies are energy efficient [1], and they are used extensively for heating applications (e.g., cooking stoves, etc.) [2,3]. IH is also used in office automation appliances.…”

Section: Introductionmentioning

confidence: 99%

Simple Lossless Inductive Snubbers-Assisted Series Load Resonant Inverter Operating under ZCS-PDM Scheme for High-Frequency Induction Heating Fixed Roller

et al. 2022

View full text Add to dashboard Cite

This paper presents a high-frequency pulse-density-modulated (PDM) soft-switching series load resonant inverter for use in induction heating (IH) fixed roller applications, which is used in copy and printing machines. The proposed simple high-frequency resonant inverter uses an asymmetrical pulse pattern PDM control scheme to achieve complete zero-current soft-switching commutations over a wide output range of input power regulation. Additionally, when the printer toner requires operation in very light load conditions, this causes difficulty in achieving zero-voltage or zero-current soft-switching operations in the IH high-frequency resonant inverters with pulse frequency modulation or pulse width modulation control schemes. The proposed resonant inverter demonstrates the capability to accomplish highly efficient power conversions. In this work, a fixed roller for printing machines is developed for doing experiments to verify the efficiency of the proposed circuit topology and its PDM control schemes. The inverter’s steady-state and transient operating principles are analyzed based on the proposed control strategy at a high-frequency PDM. Operating conditions such as power loss analysis, power conversion efficiency and temperature rise characteristics of the proposed inverter are presented and analyzed through experimental results. Finally, from a practical viewpoint, a comparative study of a conventional halogen lamp heater and the proposed IH fixed roller is deliberated.

show abstract

“…This effect results in the flow of alternating current in a fine layer in the direction of work piece. Thus heating effect is highly enhanced due to the current induced in the work piece [28][29][30][31]. In Section 1.1 proposed IH model has been analyzed with the incorporation of Boost PFC.…”

Section: Introductionmentioning

confidence: 99%

Implementation of Boost PFC in the Induction Heating System for EMI–RFI Suppression

Raman

Baruah

Dey

et al. 2021

HighTech. Innov. J.

View full text Add to dashboard Cite

The present work deals with the design and performance analysis of high frequency resonant inverter based Induction Heating (IH) System employing Boost Power Factor Correction (PFC) technique to overcome the problems due to EMI and RFI. Most of the existing techniques use passive filters for harmonics attenuation that fails to meet the present day requirement because of drawbacks like considerably high THD, poor dynamic performance, etc. This paper presents a new control approach for boost PFC based on inner and outer loops to eliminate the problems due to harmonics in the IH system. The equivalent circuit parameter model of the IH system has been used to analyze the presence of harmonics and the incorporation of boost PFC at the input of the system shows its elimination as per the stringent EMI-RFI regulations. Moreover, attention has been paid off to the design algorithm of the boost PFC and a detailed mathematical analysis has been done to outline an approach for its parameter selection. A comparative analysis of the IH system with and without the incorporation of the boost PFC has been done in terms of the THD in the input current waveform. The findings of the present work show that the incorporation of Boost PFC eliminates the harmonics in the IH system in a better manner than the existing techniques. Doi: 10.28991/HIJ-2021-02-02-05 Full Text: PDF

show abstract

Power control techniques used in high frequency induction heating applications

Cited by 12 publications

References 27 publications

Soft start-up strategy of pulse-density-modulated series-resonant converter for induction heating application

Soft start-up strategy of pulse-density-modulated series-resonant converter for induction heating application

Simple Lossless Inductive Snubbers-Assisted Series Load Resonant Inverter Operating under ZCS-PDM Scheme for High-Frequency Induction Heating Fixed Roller

Implementation of Boost PFC in the Induction Heating System for EMI–RFI Suppression

Contact Info

Product

Resources

About