A Wireless Power Pickup Based on Directional Tuning Control of Magnetic Amplifier

Hsu, Jhih-Da; Hu, Aiguo Patrick; Swain, Akshya

doi:10.1109/tie.2009.2020081

Cited by 110 publications

(42 citation statements)

References 25 publications

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“…It has been shown that the sensitivity is a function of the quality factor Q, which clearly needs to be designed at low value in order to avoid the losses in the system due to high-Q mistuned receiver. Therefore, a saturable-core magnetic amplifier has been proposed for tuning LCL-compensated receivers which is considered as a bulky solution suitable for high power applications [40]. Similarly, a double-sided LCC compensation has been proposed in [41] to achieve a unity power factor at the transmitter and the receiver.…”

Section: Comparison With Other Solutions In the Literaturementioning

confidence: 99%

Insights into Dynamic Tuning of Magnetic-Resonant Wireless Power Transfer Receivers Based on Switch-Mode Gyrators

Saad

Alarcón

2018

Energies

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Magnetic-resonant wireless power transfer (WPT) has become a reliable contactless source of power for a wide range of applications. WPT spans different power levels ranging from low-power implantable devices up to high-power electric vehicles (EV) battery charging. The transmission range and efficiency of WPT have been reasonably enhanced by resonating the transmitter and receiver coils at a common frequency. Nevertheless, matching between resonance in the transmitter and receiver is quite cumbersome, particularly in single-transmitter multi-receiver systems. The resonance frequency in transmitter and receiver tank circuits has to be perfectly matched, otherwise power transfer capability is greatly degraded. This paper discusses the mistuning effect of parallel-compensated receivers, and thereof a novel dynamic frequency tuning method and related circuit topology and control is proposed and characterized in the system application. The proposed method is based on the concept of switch-mode gyrator emulating variable lossless inductors oriented to enable self-tunability in WPT receivers.

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Section: Comparison With Other Solutions In the Literaturementioning

confidence: 99%

Insights into Dynamic Tuning of Magnetic-Resonant Wireless Power Transfer Receivers Based on Switch-Mode Gyrators

Saad

Alarcón

2018

Energies

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“…The DC current (I MA ) which controls the magnetic amplifier is varied through a transistor operating in linear mode which essentially functions as a variable resistor. The equivalent inductance of L S2 is adjusted through changing the output signal V ctrl from the DTC algorithm, which allows the power pickup to deliver the right amount of power required by the load (Hsu et al, 2009). The boost-up factors for ac voltage (V AC ) and current (I AC ) of the LCL tuning circuit can be determined from the following two transfer functions.…”

Section: Effects Of Power Pickup Parameter Variations On Output Voltagementioning

confidence: 99%

Directional Tuning Control of Wireless/Contactless Power Pickup for Inductive Power Transfer (IPT) System

Hsu¹,

Hu²,

Swain³

2010

Advances in Solid State Circuit Technologies

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“…In the past, most IPT systems have utilised various types of controllers including directional tuning, fuzzy, bit-stream and simple PI and PID controllers as a means of verifying a model or particular control strategy [7,6,9,10,8,12,13,31,32]. These controllers give sub-optimal performance if not correctly tuned and are vulnerable to system disturbances and parametric variations which are prevalent in such systems.…”

Section: Introductionmentioning

confidence: 99%

Robust H<sub>∞</sub> output feedback control of bidirectional inductive power transfer systems

Swain

Almakhles

Neath

et al. 2017

Archives of Control Sciences

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Robust H ∞ output feedback control of bidirectional inductive power transfer systems AKSHYA SWAIN, DHAFER ALMAKHLES, MICHAEL J. NEATH and ALIREZA NASIRI Bidirectional Inductive power transfer (IPT) systems behave as high order resonant networks and hence are highly sensitive to changes in system parameters. Traditional PID controllers often fail to maintain satisfactory power regulation in the presence of parametric uncertainties. To overcome these problems, this paper proposes a robust controller which is designed using linear matrix inequality (LMI) techniques. The output sensitivity to parametric uncertainty is explored and a linear fractional transformation of the nominal model and its uncertainty is discussed to generate a standard configuration for µ-synthesis and LMI analysis. An H ∞ controller is designed based on the structured singular value and LMI feasibility analysis with regard to uncertainties in the primary tuning capacitance, the primary and pickup inductors and the mutual inductance. Robust stability and robust performance of the system is studied through µ-synthesis and LMI feasibility analysis. Simulations and experiments are conducted to verify the power regulation performance of the proposed controller.

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A Wireless Power Pickup Based on Directional Tuning Control of Magnetic Amplifier

Cited by 110 publications

References 25 publications

Insights into Dynamic Tuning of Magnetic-Resonant Wireless Power Transfer Receivers Based on Switch-Mode Gyrators

Insights into Dynamic Tuning of Magnetic-Resonant Wireless Power Transfer Receivers Based on Switch-Mode Gyrators

Directional Tuning Control of Wireless/Contactless Power Pickup for Inductive Power Transfer (IPT) System

Robust H<sub>∞</sub> output feedback control of bidirectional inductive power transfer systems

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