Design and Implementation of a FPGA-Based Controller for Resonant Inverters

Tian, Jingjing; Berger, G.; Reimann, T.; Scherf, M.; Petzoldt, S.J.

doi:10.1109/pesc.2007.4342087

Cited by 6 publications

(6 citation statements)

References 8 publications

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“…The relation between the current amplitude i L and the current phase angle T to the control inputs, d and ɘ sw , is nonlinear, and small-signal analysis was employed in [18,19].…”

Section: B Small Signal Low Frequency Current and Power Modelsmentioning

confidence: 99%

“…The small signal duty-to-phase-angle T, G Td (s), angular frequency-to-phase-angle, G TZ (s), duty-to-output-power, G pd (s), and angular frequency-to-output-power, G pZ (s), transfer functions are used in [19] to implement a multi-loop power control loop, but no analytical expressions were given. In order to obtain the small-signal transfer functions we linearize the output equations.…”

Section: B Small Signal Low Frequency Current and Power Modelsmentioning

confidence: 99%

“…Although these high-frequency terms can be dropped out, analytical transfer functions are difficult to be obtained even for a simple series resonant inverter (SRI). For induction heating applications, in [14,15] the small-signal model of a phase-shift and frequency controlled SRI by EDF are presented respectively, in [16] the small-signal model of a dual half bridge series resonant inverter (DHBSRI) by EDF is provided, in [17][18][19] a small-signal model of a half-bridge series resonant inverter (HBSRI) by phase-based phasor transformation is obtained. However, neither [14][15][16] nor [17][18][19] provides analytical transfer functions.…”

Section: Introductionmentioning

confidence: 99%

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Reduced-Order Models of Series Resonant Inverters in Induction Heating Applications

Domínguez

Barragán

Artigas

et al. 2017

IEEE Trans. Power Electron.

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Abstract--From the controller design framework, a simple analytical model that captures the dominant behavior in the range of interest is the optimal. When modeling resonant circuits, complex mathematical models are obtained. These high-order models are not the most suitable for controller design. Although some assumptions can be made for simplifying these models, variable frequency operation or load uncertainty can make these premises no longer valid. In this work, a systematic modeling order reduction technique, Slowly Varying Amplitude and Phase (SVAP), is considered for obtaining simpler analytical models of resonant inverters. SVAP gives identical results as the classical model-order residualization technique from automatic control theory. A slight modification of SVAP, Slowly Varying Amplitude Derivative and Phase (SVADP) is applied in this paper to obtain a better validity range. SVADP is validated for a half-bridge series resonant inverter (HBSRI) and for a highorder plant, a dual-half bridge series resonant inverter (DHBSRI) giving analytical second-order transfer functions for both topologies. Simulation and experimental results are provided to show the validity range of the reduced-order models.

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“…The relation between the current amplitude i L and the current phase angle T to the control inputs, d and ɘ sw , is nonlinear, and small-signal analysis was employed in [18,19].…”

Section: B Small Signal Low Frequency Current and Power Modelsmentioning

confidence: 99%

Section: B Small Signal Low Frequency Current and Power Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reduced-Order Models of Series Resonant Inverters in Induction Heating Applications

Domínguez

Barragán

Artigas

et al. 2017

IEEE Trans. Power Electron.

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“…From (21) and (19) we can obtain the following reducedorder model of the state variables set x 1 of interest:…”

Section: A Model-order Reduction With Svap and Svadp Approachesmentioning

confidence: 99%

Reduced-order model of a half-bridge series resonant inverter for power control in domestic induction heating applications

Domínguez

Barragán

Artigas

et al. 2015

2015 IEEE International Conference on Industrial Technology (ICIT)

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“…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. The same control technique is used in [5], for half bridge inverter to regulate the output power with ZVS. Pulse Density Modulation (PDM) based power control is proposed in [6], [7] with constant fsw.C.…”

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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Design and Implementation of a FPGA-Based Controller for Resonant Inverters

Cited by 6 publications

References 8 publications

Reduced-Order Models of Series Resonant Inverters in Induction Heating Applications

Reduced-Order Models of Series Resonant Inverters in Induction Heating Applications

Reduced-order model of a half-bridge series resonant inverter for power control in domestic induction heating applications

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

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