Design considerations for a misalignment tolerant wireless inductive power system for electric vehicle (EV) charging

Bandyopadhyay, Samir Kumar; Prasanth, V.; Ramírez-Elizondo, Laura; Bauer, Pavol

doi:10.23919/epe17ecceeurope.2017.8099320

Cited by 15 publications

(11 citation statements)

References 15 publications

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“…Researchers proposed different kind of method to reduce the effects of misalignment. The majority of research is focused on advance coil and core structures, like DD, DDC, DDQ, and BP have been analyzed and different coil combination of coils are used, which are shown to be some extent resistant to misalignment coils used, which are shown to be some extent resistant to misalignment [242][243][244][245]. Researchers also proposed misalignment tolerant methods based on frequency tuning technologies and compensation circuits for power electronics [246][247][248].…”

Section: Misalignmentmentioning

confidence: 99%

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Bharatiraja²,

2021

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Considering a future scenario in which a driverless Electric Vehicle (EV) needs an automatic charging system without human intervention. In this regard, there is a requirement for a fully automatable, fast, safe, cost-effective, and reliable charging infrastructure that provides a profitable business model and fast adoption in the electrified transportation systems. These qualities can be comprehended through wireless charging systems. Wireless Power Transfer (WPT) is a futuristic technology with the advantage of flexibility, convenience, safety, and the capability of becoming fully automated. In WPT methods resonant inductive wireless charging has to gain more attention compared to other wireless power transfer methods due to high efficiency and easy maintenance. This literature presents a review of the status of Resonant Inductive Wireless Power Transfer Charging technology also highlighting the present status and its future of the wireless EV market. First, the paper delivers a brief history throw lights on wireless charging methods, highlighting the pros and cons. Then, the paper aids a comparative review of different type's inductive pads, rails, and compensations technologies done so far. The static and dynamic charging techniques and their characteristics are also illustrated. The role and importance of power electronics and converter types used in various applications are discussed. The batteries and their management systems as well as various problems involved in WPT are also addressed. Different trades like cyber security economic effects, health and safety, foreign object detection, and the effect and impact on the distribution grid are explored. Prospects and challenges involved in wireless charging systems are also highlighting in this work. We believe that this work could help further the research and development of WPT systems..

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Section: Misalignmentmentioning

confidence: 99%

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Bharatiraja²,

2021

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“…Hence, a large current (i.e. magneto-motive force) is obligatory to produce a sufficient magnetic field to link receiver coils [64]. It is essential to maximise coupling efficiency by tuning the transmitter and receiver coils to the same resonant frequency [65].…”

Section: 𝑒 𝑆mentioning

confidence: 99%

In-depth perception of dynamic inductive wireless power transfer development: a review

Nanda

Hanifah

Yusoff

et al. 2021

IJPEDS

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The emerging of inductive wireless power transfer (IWPT) technology provides more opportunities for the electric vehicle (EV) battery to have a better recharging process. With the development of IWPT technology, various way of wireless charging of the EV battery is proposed in order to find the best solution. To further understand the fundamentals of the IWPT system itself, an ample review is done. There are different ways of EV charging which are static charging (wired), static wireless charging (SWC) and dynamic wireless charging (DWC). The review starts with a brief comparison of static charging, SWC and DWC. Then, in detailed discussion on the fundamental concepts, related laws and equations that govern the IWPT principle are also included. In this review, the focus is more on the DWC with a little discussion on static charging and SWC to ensure in-depth understanding before one can do further research about the EV charging process. The in-depth perception regarding the development of DWC is elaborated together with the system architecture of the IWPT and DWC system and the different track versions of DWC, which is installable to the road lane.

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“…The first route is to optimize the system in the design stage, which includes coil design and compensation circuit design. The parameters of coil and magnetic core are modeled and designed for efficiency optimization in [7]- [9]. It is emphasized in [8] that the parameter κQ is vital for coil efficiency.…”

Section: Figurementioning

confidence: 99%

Efficiency Improvement of Wireless Charging System Based on Active Power Source in Receiver

et al. 2019

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Wireless charging technology adapts to the electrified, lightweight, and intelligent trends of electric vehicle development. However, energy efficiency of wireless charging is still lower than conductive charging, and it is important for the wireless charging system to achieve global efficiency optimization in a constant current-constant voltage (CC-CV) charging operation. This paper proposes a novel system configuration, which adds an active power source into the receiver of the wireless charging system. It is proved that the efficiency can be increased significantly with amplitude and phase of the active power source be properly set. A novel current decoupling algorithm is used to analyze the efficiency of the new configuration, and a simulation model is established to validate the theoretical result and to explain the mechanism of efficiency improvement. The simulation shows that the active power source is able to change the power distribution and the current balance, and as a result, the efficiency increases in part of the operating region. The proposed configuration is realized in the experiment and then the efficiency improvement is demonstrated. The experimental result shows that the efficiency increases from 84.9% to 95.7% in a low coupling and slightly detuning working condition.INDEX TERMS Active power source, electric vehicles, energy efficiency, inductive power transmission, wireless charging.

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Design considerations for a misalignment tolerant wireless inductive power system for electric vehicle (EV) charging

Cited by 15 publications

References 15 publications

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

In-depth perception of dynamic inductive wireless power transfer development: a review

Efficiency Improvement of Wireless Charging System Based on Active Power Source in Receiver

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