Comparison of Position-Independent Contactless Energy Transfer Systems

Smeets, J.P.C.; Overboom, T.T.; Jansen, J.W.; Lomonova, E. A.

doi:10.1109/tpel.2012.2205404

Cited by 72 publications

(37 citation statements)

References 20 publications

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“…Inductive power transfer (IPT) systems are employed in many ultra-clean, ultra-dirty environments as a power provider to transfer power from the primary side to the secondary load side over a moderate airgap distance through magnetic coupling [1]- [9] on the basis of specific application requirements. The potential advantages of IPT systems include immunity to ice, water, and other chemicals; environmental friendliness; and zero maintenance requirement.…”

Section: Introductionmentioning

confidence: 99%

A Power Regulation and Harmonic Current Elimination Approach for Parallel Multi-Inverter Supplying IPT Systems

2018

IJRTER

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ABSRACT: The single resonant inverter is widely employed in typical inductive power transfer (IPT) systems to generate a high-frequency current in the primary side. However, the power capacity of a single resonant inverter is limited by the constraints of power electronic devices and the relevant cost. Consequently, IPT systems fail to meet high-power application requirements, such as those in rail applications. Total harmonic distortion (THD) may also violate the standard electromagnetic interference requirements with phase shift control under light load conditions. A power regulation approach with selective harmonic elimination is proposed on the basis of a parallel multi-inverter to upgrade the power levels of IPT systems and suppress THD under light load conditions by changing the output voltage pulse width and phase shift angle among parallel multi-inverters. The validity of the proposed control approach is verified by using a 1,412.3 W prototype system, which achieves a maximum transfer efficiency of 90.602%. Output power levels can be dramatically improved with the same semiconductor capacity, and distortion can be effectively suppressed under various load conditions.

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Section: Introductionmentioning

confidence: 99%

A Power Regulation and Harmonic Current Elimination Approach for Parallel Multi-Inverter Supplying IPT Systems

2018

IJRTER

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“…It has been employed for various applications including biomedical implants [5,6], mining applications [7], under-water power supply [8] and electric vehicles [9][10][11][12][13][14] with the advantages of being unaffected by ice, water or other chemicals.…”

Section: Introductionmentioning

confidence: 99%

A Novel WPT System Based on Dual Transmitters and Dual Receivers for High Power Applications: Analysis, Design and Implementation

Mai

Lin

et al. 2017

Energies

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Traditional Wireless Power Transfer (WPT) systems only have one energy transmission path, which can hardly meet the power demand for high power applications, e.g., railway applications (electric trains and trams, etc.) due to the capacity constraints of power electronic devices. A novel WPT system based on dual transmitters and dual receivers is proposed in this paper to upgrade the power capacity of the WPT system. The reliability and availability of the proposed WPT system can be dramatically improved due to the four energy transmission paths. A three-dimensional finite element analysis (FEA) tool ANSYS MAXWELL (ANSYS, Canonsburg, PA, USA) is adopted to investigate the proposed magnetic coupling structure. Besides, the effects of the crossing coupling mutual inductances among the transmitters and receivers are analyzed. It shows that the same-side cross couplings will decrease the efficiency and transmitted power. Decoupling transformers are employed to mitigate the effects of the same-side cross couplings. Meanwhile, the output voltage in the secondary side can be regulated at its designed value with a fast response performance, and the system can continue work even with a faulty inverter. Finally, a scale-down experimental setup is provided to verify the proposed approach. The experimental results indicate that the proposed method could improve the transmitted power capacity, overall efficiency and reliability, simultaneously. The proposed WPT structure is a potential alternative for high power applications.

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“…Bidirectional IPT systems suffer significant performance degradation when detuned and thus parallel and series compensations are typically used to improve the powerhandling capabilities of IPT systems, causing the systems to behave as high-order resonant networks [29,26,11]. As a consequence, IPT systems are complex in nature and are difficult to both design and control when maintained at an operating frequency of 10-100 kHz [36].…”

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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Comparison of Position-Independent Contactless Energy Transfer Systems

Cited by 72 publications

References 20 publications

A Power Regulation and Harmonic Current Elimination Approach for Parallel Multi-Inverter Supplying IPT Systems

A Power Regulation and Harmonic Current Elimination Approach for Parallel Multi-Inverter Supplying IPT Systems

A Novel WPT System Based on Dual Transmitters and Dual Receivers for High Power Applications: Analysis, Design and Implementation

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

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