Power tracking with maximum efficiency for wireless charging of E-bikes

Pellitteri, Filippo; Boscaino, V.; Miceli, R.; Madawala, Udaya K.

doi:10.1109/ievc.2014.7056208

Cited by 17 publications

(10 citation statements)

References 17 publications

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“…The MEPT principle is important to WPT for both low-power applications due to the large quantities of portable electronic devices and high-power applications due to high power consumption. In 2014, five research publications reported independent investigations on various ideas of tracking optimal load or tracking maximum efficiency operations [7]- [11]. Interestingly, three references [7]- [9] appeared online in August 2014 and as printed versions in the same 2015 issue of the IEEE Transactions on Power Electronics.…”

Section: A Basic Principles Of Maximum Efficiency Point Tracking (Mept)mentioning

confidence: 99%

“…For this reason, any WPT operation based on the maximum power theorem or impedance matching with a source impedance of 50Ω cannot achieve energy efficiency higher than 50%. Since [7]- [11] were published, there are over 50 MEPTrelated research publications from 2015-2022 according to IEEE Xplore. Some of these publications with different implementation approaches will be highlighted in the following discussion.…”

Section: A Basic Principles Of Maximum Efficiency Point Tracking (Mept)mentioning

confidence: 99%

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Wireless Power Transfer: A Paradigm Shift for the Next Generation

Hui

Yang

Zhang

2023

IEEE J. Emerg. Sel. Topics Power Electron.

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The first generation of wireless power transfer (WPT) standard Qi, launched in 2010, contains a wide range of transmitter and receiver designs with the aim of maximizing compatibility to attract many manufacturers to share the same standard. Such compatibility feature (i.e., interoperability) has not only attracted over 400 company members in the Wireless Power Consortium (WPC), but also facilitated a fast-growing wireless power market for a decade. The WPC is now expanding the scope of WPT applications to mid-power and high-power applications up to several kilowatts while the Society for Automobile Engineers also set the SAE standard for wireless charging of electric vehicles (EVs) up to tens of kilowatts. Without compromising compatibility, the authors share in this paper their views on the need for a paradigm shift from compatibility to optimal performance in terms of maximum energy efficiency for the entire charging process and minimum charging time. This paradigm change is imminent and important in view of the increasing power of WPT applications. Several enabling technologies essential to the paradigm shift will be addressed.

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Section: A Basic Principles Of Maximum Efficiency Point Tracking (Mept)mentioning

confidence: 99%

Section: A Basic Principles Of Maximum Efficiency Point Tracking (Mept)mentioning

confidence: 99%

Wireless Power Transfer: A Paradigm Shift for the Next Generation

Hui

Yang

Zhang

2023

IEEE J. Emerg. Sel. Topics Power Electron.

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“…Moreover, it's worth remembering that one of the most elements of a MOSFET producing switching diode, which is traversed by current reverse recovery time. This interval time is Definition of reverse recovery time [28] in fact, both for diodes and , this charge, called reversed recovery I d (t)dt (10) urn-off power losses are [28]:…”

Section: Analysis Of the Isolated Convertermentioning

confidence: 99%

“…Because of their great thermal conductivity and wide bandgap, these ones can be exploited to get high power and to operate at high temperatures. These are the reasons why SiC plays an important role in the implementation of new technology applications, such as high efficiency DC-DC converters, DC-AC converters, inverters for solar and wind energy, photo-voltaic converters, power converters for electrical and vehicles, motor drives, power inverters for industrial equipment, high voltage switches for X-ray generators, thin-film coating processes, chargers and power supplies for renewable energy systems [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Many power devices are produced, such as Schottky barrier diodes, MOSFETs, power modules, IGBTs, BJTs, and many companies are engaged in making them.…”

Section: Introductionmentioning

confidence: 99%

Power losses comparison between Silicon Carbide and Silicon devices for an isolated DC-DC converter

Pellitteri

Busacca

Martorana

et al. 2021

2021 IEEE 15th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)

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In recent years, new efficient power devices have been implemented; in particular, Silicon Carbide (SiC) devices have advantages as regards their electrical characteristics, such as very low power losses, low gate charge, low capacitances, a low on-state resistance and many others, when compared to the Silicon (Si) devices; these devices can operate at high switching frequency and high voltages; with reference to their thermal characteristics, thanks to their great thermal conductivity, high power can be obtained and, because of their wide bandgap, high temperature can be reached; for these reasons, these devices are utilized in a wide range of technological applications, including power electronics. In this paper, power losses in Si and SiC devices are evaluated in simulation and compared to each other; in order to demonstrate the remarkable advantages of the SiC devices over the silicon ones, a study which makes use of an isolated DC-DC converter is proposed in this paper. As regards the proposed full-bridge converter, SiC and silicon MOSFETs and diodes, of whom some static and dynamic parameters are compared, are used in order to transfer power from a DC voltage supply to a load.

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“…The problems can be solved by wireless charging systems with convenience and can save people from the tiresome plugging action. Therefore, the wireless power transfer (WPT) technique for EB chargers has been studied for a few years [2][3][4][5], and the wireless charging market has been growing rapidly for a couple of years.…”

Section: Introductionmentioning

confidence: 99%

Two‐/three‐coil hybrid topology and coil design for WPT system charging electric bicycles

Cui

Yang

et al. 2019

IET Power Electronics

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Wireless power transfer (WPT) for charging electric bicycles (EBs) can save people from tiresome plugging actions and avoid electrical shock hazards, especially in adverse weather. This study proposed a two-/three-coil hybrid topology to achieve constant current (CC) and constant voltage (CV) for charging EBs, simplifying control schemes. The system realises CC output with two-coil topology and operates in CV mode with three-coil topology by turning on a switch. Besides, an inductor array is used to compensate reactive power in CV mode when massive EBs are charged by one high-frequency inverter (HFI). The secondary side of the proposed topology is compact, and the number of components and HFI can be reduced. A coil design process based on doubleD type for the three-coil system is given, with the constraint of mutual inductances among three coils and limited size. To demonstrate the validity of the proposed methods, an experimental setup is built, and the performance of the two-/three-coil hybrid system indicates that the fluctuations of charging current and voltage are <0.64 and 2.12% in the whole charging profile. Moreover, the performance of two WPT chargers connected with one HFI hints that massive EBs can be charged with only one HFI.

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Power tracking with maximum efficiency for wireless charging of E-bikes

Cited by 17 publications

References 17 publications

Wireless Power Transfer: A Paradigm Shift for the Next Generation

Wireless Power Transfer: A Paradigm Shift for the Next Generation

Power losses comparison between Silicon Carbide and Silicon devices for an isolated DC-DC converter

Two‐/three‐coil hybrid topology and coil design for WPT system charging electric bicycles

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