An Improved $LLC$ Resonant Inverter for Induction-Heating Applications With Asymmetrical Control

Chudjuarjeen, Saichol; Sangswang, Anawach; Koompai, Chayant

doi:10.1109/tie.2010.2070779

Cited by 128 publications

(47 citation statements)

References 29 publications

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“…Maximum current gain (equal to ) is observed for operation at the proposed operating point = 1. The characteristics and design of L-LC RI for IH applications operating at = = √(1 + )/ have been reported extensively in the literature [15][16][17][18][19][20][21]. At this operating point,…”

Section: Analysis Of L-lc Cnmentioning

confidence: 99%

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A 25 kW, 25 kHz Induction Heating Power Supply for MOVPE System Using L-LC Resonant Inverter

Borage

Tiwari

2013

Advances in Power Electronics

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A topology named L-LC resonant inverter (RI) for induction heating (IH) applications takes most of the merits of the conventional series and parallel resonant schemes, while eliminating their limitations. In this paper, fundamental frequency AC analysis of L-LC RI is revisited, and a new operating point is suggested featuring enhanced current gain and near in-phase operation as compared to the conventional operating point. An approximate analysis of the circuit with square-wave voltage source is also described highlighting the effect of auxiliary inductor on the source current waveform. The analysis also leads to an optimum choice of the auxiliary inductance. The requirements of the metal organic vapour phase epitaxy (MOVPE) system in which a graphite susceptor is required to be heated to 1200 ∘ C demanding a 25 kW, 25 kHz IH power supply, the configuration of developed IH system, and experimental results are presented.

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Section: Analysis Of L-lc Cnmentioning

confidence: 99%

“…A topology named L-LC RI has been proposed for IH applications [14][15][16][17][18][19][20][21], which takes most of the merits of SRI and PRI while eliminating their limitations. It operates with input dc voltage source, thereby eliminating bulky input current smoothening inductor.…”

Section: Introductionmentioning

confidence: 99%

A 25 kW, 25 kHz Induction Heating Power Supply for MOVPE System Using L-LC Resonant Inverter

Borage

Tiwari

2013

Advances in Power Electronics

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“…En [23] la potencia de salida se controló por cancelación de voltaje asimétrico y un PLL que garantizan el ajuste automático de la frecuencia de operación para mantener un ángulo constante de fase en atraso ante la variación de los parámetros de carga.…”

Section: Inversores Serie -Paralelo (L-lc)unclassified

Electrónica de potencia para el calentamiento por inducción doméstico: revisión del estado del arte

et al. 2013

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Este trabajo presenta la revisión de la literatura que relaciona los desarrollos de los sistemas de calentamiento por inducción. Inicialmente, se presenta una contextualización de la forma general de funcionamiento y se concentra en las características particulares para uso doméstico y de manera más específica en la electrónica de potencia. Se presentan los principios de operación, las topologías de inversores resonantes más usadas (serie, paralelo, híbrida, cuasi-resonante y de un solo interruptor), las estrategias de modulación, estrategias de control usando modulación de frecuencia, por ancho de pulso y por densidad de pulso y las metodologías de conmutación (suave y forzada). Finalmente, se hace un pequeño análisis sobre las áreas donde aún es necesaria la investigación tales como sistemas de calefacción por inducción con múltiples salidas, topologías de inversores de un solo interruptor y los inversores cuasi-resonantes.

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“…In such cases, different phase control methods are used to have a control between the output voltage and current. In [3], [4], the dual control loop is employed for full bridge inverter with Phase-Shift modulation technique. Here the first loop adjusts the fsw which guarantees the Zero Voltage Switching (ZVS) and the second loop adjusts the firing angle of the rectifier in accordance with the output power regulation.…”

Section: Introductionmentioning

confidence: 99%

Investigations on stability and performance of a varia-ble frequency based fuzzy logic controller for induction cooking system

Vishnuram¹,

Nagarajan²,

Sureshkumar³

2017

IJET

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Load variability and perturbation is an important issue in the induction cooking applications as it hinders the performance of the heating system considerably .Therefore a precise power control technique is required for induction heating applications by considering the stability issues and dynamic response of the system. Also, the safety operating ranges need to be confirmed to ascertain the competency of the controller. In this paper, a Fuzzy logic based power control scheme is introduced by considering the load uncertainties. The suggested power control technique uses variable frequency control of the inverter for reaching the target power level. Also, a detailed stability study is done for investigating stability range within which the system operation is safe and stable. The said work is simulated in MATLAB/Simulink environment and realized as a prototype where advanced FPGA controller renders its hand .The simulation and hardware results reveal that the suggested technique is versatile.

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An Improved $LLC$ Resonant Inverter for Induction-Heating Applications With Asymmetrical Control

Cited by 128 publications

References 29 publications

A 25 kW, 25 kHz Induction Heating Power Supply for MOVPE System Using L-LC Resonant Inverter

A 25 kW, 25 kHz Induction Heating Power Supply for MOVPE System Using L-LC Resonant Inverter

Electrónica de potencia para el calentamiento por inducción doméstico: revisión del estado del arte

Investigations on stability and performance of a varia-ble frequency based fuzzy logic controller for induction cooking system

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