Wireless power transfer technology using full‐bridge current‐fed topology for medium power applications

Samanta, Suvendu; Rathore, Akshay Kumar

doi:10.1049/iet-pel.2015.0775

Cited by 55 publications

(32 citation statements)

References 41 publications

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“…A WPT architecture based on a current-fed converter is proposed in [24], where a 420 W prototype was developed showing a maximum efficiency close to 90%. An integrated two-stage DC-AC converter is presented in [25], where a dynamic control strategy is proposed aiming to track the maximum efficiency of the high-efficiency bidirectional DC-AC converter, which was registered as 97.2% for an operating power of 3 kW.…”

Section: Wpt Design and Simulationmentioning

confidence: 99%

Design of an Intrinsically Safe Series-Series Compensation WPT System for Automotive LiDAR

et al. 2020

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The earliest and simplest impedance compensation technique used in inductive wireless power transfer (WPT) design is the series-series (SS) compensation circuit, which uses capacitors in series with both primary and secondary coils of an air-gapped transformer. Despite of its simplicity at the resonant condition, this configuration exhibits a major sensitivity to variations of the load attached to the secondary, especially when higher coupling coefficients are used in the design. In the extreme situation that the secondary coil is left at open circuit, the current at the primary coil may increase above the safety limits for either the power converter driving the primary coil or the components in the primary circuit, including the coil itself. An approach often used to minimize this problem is detuning, but this also reduces the electrical efficiency of the power transfer. In low power, fixed-distance stationary WPT, a fair trade-off between efficiency and safety must be verified. This paper aims to consolidate a simple design procedure for such a SS-compensation, exemplifying its use in the prototype of a WPT system for automotive light detection and ranging (LiDAR) equipment. The guidelines herein provided should equally apply to other low power applications.

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Section: Wpt Design and Simulationmentioning

confidence: 99%

Design of an Intrinsically Safe Series-Series Compensation WPT System for Automotive LiDAR

et al. 2020

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“…To achieve high frequency voltage source inverters (VSI) are used for S-S, S-P compensated topologies [63][64][65][66][67] and current source inverters are used for P-S, P-P compensated topologies [68,69]. As a full bridge VSI gives an output voltage twice than that of a half bridge VSI, a full bridge VSI is suitable for high power applications.…”

Section: High Frequency Converter and Its Control Strategiesmentioning

confidence: 99%

“…As the converters are operating at high switching frequency, silicon carbide MOSFETS with soft switching techniques are used to reduce switching losses [40]. For P-S, P-P compensated topologies, the DC inductor is connected at the input side of the VSI to get a stiff current from voltage source [68,69].…”

Section: High Frequency Converter and Its Control Strategiesmentioning

confidence: 99%

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Review on Contactless Power Transfer for Electric Vehicle Charging

Ravikiran

Keshri

2017

Energies

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Abstract:For the past few years the feasibility of contactless power transfer (CPT) is being explored extensively as a future solution for charging electric vehicles (EVs). Studies report that the main obstacles in CPT are low power efficiency, misalignment tolerance, cost, range and charging time anxiety. This paper presents a review based on existing literature of the CPT systems for EV charging. Different cases of CPT technologies, their principle of operation and equivalent circuit based analysis is carried out. A discussion on compensation strategies and their effectiveness are reviewed and discussed. The design of coil systems for some city electric cars has been referenced in general. At the end recommendations and conclusions are made based on the study and analysis of the information available in literature.

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“…In recent years, IPT system has become a hot research field all over the world [1]- [3]. At present, IPT technology has been widely used in electric vehicles, medical devices, consumer electronics and other fields [4]- [7], and gradually develops towards high-power directions such as maglev train, urban rail transit vehicle, high-speed railway train [8]- [10].…”

Section: Introductionmentioning

confidence: 99%

Load Segment Tracking Control of IPT System Based on Power Efficiency Optimization

et al. 2020

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In the induction electric energy transmission system applied to fix point charging of vehicles, the mutual inductance change caused by position deviation or air gap change, and the equivalent load change caused by power demand change will make the output power and efficiency fluctuate, thus affecting the output stability of the system. In order to ensure the reliability of the charging process of the system and at the same time have a strong power output capacity, this paper proposes a load segmental tracking control strategy based on the optimal power efficiency. This control strategy adjusts the equivalent load to track different power efficiency indicator curves according to different mutual inductance states of the system and power demand when the vehicle is static charging, so that it can always maintain the optimal power efficiency state according to different charging conditions and improve the system performance. Finally, simulation and experimental verification are carried out under different states of mutual inductance. The results show that this method can achieve the equivalent load segmental tracking under different mutual inductance states, and always maintain the optimal power efficiency output. INDEX TERMS Efficiency, inductive power transmission, load tracking, optimization, power.

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Wireless power transfer technology using full‐bridge current‐fed topology for medium power applications

Cited by 55 publications

References 41 publications

Design of an Intrinsically Safe Series-Series Compensation WPT System for Automotive LiDAR

Design of an Intrinsically Safe Series-Series Compensation WPT System for Automotive LiDAR

Review on Contactless Power Transfer for Electric Vehicle Charging

Load Segment Tracking Control of IPT System Based on Power Efficiency Optimization

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