Power-Factor-Corrected Single-Stage Inductive Charger for Electric Vehicle Batteries

Egan, M.G.; O’Sullivan, Don; Hayes, John G.; Willers, M.; Henze, C.P.

doi:10.1109/tie.2007.892996

Cited by 185 publications

(47 citation statements)

References 9 publications

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“…Therefore, it has been gaining popularity and is widely used in some special fields, including household appliances, implanted biomedical sensors for organs, underwater charging, and online electric power supply [5][6][7][8]. The development trend of WPT technology is long-distance, high-power, high-efficiency, misalignment-tolerant, etc.…”

Section: Introductionmentioning

confidence: 99%

A bidirectional wireless power transfer system for an electric vehicle with a relay circuit

Xia¹,

Wang²,

Liu³

et al. 2017

Turk J Elec Eng & Comp Sci

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Abstract:In order to extend the transfer distance, enhance the tolerance for coil misalignment, and improve the capability of energy feedback and power transfer efficiency of conventional wireless power transfer (WPT) systems for electric vehicles, this paper presents a bidirectional WPT topology with a relay circuit. In the proposed topology, the primary and pickup circuits are implemented with virtually identical structures, which can operate in both magnetic field excitation and magnetic field receiving modes to facilitate bidirectional power flow between the primary side and the pickup side. A relay circuit is introduced to achieve high transfer efficiency under special conditions such as long distance or coil misalignment. The mathematical model of the system is established to describe its working mechanism in detail. Both the direction and amount of power flow can be regulated by controlling the shift phase voltages generated by primary and pickup switches. At the same time, the power and efficiency of system are analyzed, which provides a reference to optimize the parameters. The viability of the proposed system is verified by experiments, and the results suggest that the relay bidirectional WPT system is a reliable and efficient system for electric vehicle charging systems.

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Section: Introductionmentioning

confidence: 99%

A bidirectional wireless power transfer system for an electric vehicle with a relay circuit

Xia¹,

Wang²,

Liu³

et al. 2017

Turk J Elec Eng & Comp Sci

View full text Add to dashboard Cite

show abstract

“…Therefore, using a single-stage topology to realize the PFC, isolation and dc/dc conversion sounds more attractive. Several single-stage full-bridge topologies can be found in the literature [6]- [21]. Among them, voltage-fed full-bridge converters [13]- [21], which can operate with a constant frequency and do not have a voltage overshoot problem across the dc bus, have been widely studied.…”

Section: Introductionmentioning

confidence: 99%

A Novel PCCM Voltage-Fed Single-Stage Power Factor Correction Full-Bridge Battery Charger

Zhang¹,

Lu²,

Qian³

et al. 2016

Journal of Power Electronics

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A novel pseudo-continuous conduction mode (PCCM) voltage-fed single-stage power factor correction (PFC) full-bridge battery charger is proposed in this paper. By connecting a freewheeling transistor in parallel with an input inductor, the PFC cell can operate in the PCCM with a constant duty ratio. Thus, the dc/dc stage can be designed using this constant duty ratio and the restriction on the duty ratio of the PFC cell is eliminated. As a result, the input current distortion is less and the dc bus voltage becomes controllable over the wide output power range of the battery charger. Moreover, the operation principle of the dc/dc stage is designed to be similar to that of a conventional phase-shifted full-bridge converter. Therefore, it is easy to implement. In this paper, the operation of the new converter is explained, and the design considerations of the controller and key parameters are presented. Simulation and experimental results obtained from a 1 kW prototype are given to confirm the operation of the proposed converter.

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“…Moreover, the voltage rate of change and the electromagnetic inference are also low in this type of soft-switching power converters (SPC). These distinct advantages have thus greatly enhanced the extensive usage of SPC in industrial and telecommunication applications [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Sneaking Operation Modes in Zero-Current-Switching Converter

Zhang

Tang³

2015

TOEEJ

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This paper reports the occurrence of some abnormal operational modes in soft-switching converters. By constructing a Boolean matrix based on the states of the switching components, some unexpected topological states are identified. Consequently, these states excite the abnormal or sneaking operational modes as referred. A three-stage step-up zero-current switching converter is used as an illustrative example and detailed analysis has been carried out. The phenomenon has also been confirmed in experiences, where performance degradation is noticed.

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Power-Factor-Corrected Single-Stage Inductive Charger for Electric Vehicle Batteries

Cited by 185 publications

References 9 publications

A bidirectional wireless power transfer system for an electric vehicle with a relay circuit

A bidirectional wireless power transfer system for an electric vehicle with a relay circuit

A Novel PCCM Voltage-Fed Single-Stage Power Factor Correction Full-Bridge Battery Charger

Sneaking Operation Modes in Zero-Current-Switching Converter

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