A Novel Magnetic Coupling Mechanism for Dynamic Wireless Charging System for Electric Vehicles

Wang, Zhiyuan; Cui, Shumei; Han, Shouliang; Song, Kai; Zhu, Chunbo; Matveevich, Milyaev Igor; Yurievich, Ostanin Sergei

doi:10.1109/tvt.2017.2776348

Cited by 59 publications

(24 citation statements)

References 20 publications

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“…To simplify control requirements of transmitter currents ( = 1,3 ̅̅̅̅ ) , resonance of and ( = 1,3 ̅̅̅̅ ) is adopted at as shown in (14) to keep a constant amplitude of the transmitter's current. Therefore, are expressed in (15).…”

Section: Illustrative Design Example Of Three-phase Wdc Systemmentioning

confidence: 99%

“…Consequently, the efficiency is reduced and electromagnetic interference (EMI) is increased. Several studies are conducted to address EMI problem and also to simplify the structure of the system [12][13][14]. In [12] and [13], I-type and S-type transmitters are proposed with a width of 10 cm and 4 cm, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Additional, by adopting the alternating magnetic polarity for adjacent poles, the EMI around the transmitter coils can be substantially reduced through electromagnetic field cancelation between two adjacent magnetic poles of opposite polarity. The N-type is proposed in [14] to further reduce the volume of ferrite core while maintaining the advantages of I-type structure. However, the studies also pointed out that the magnetic flux density generated by I-type, S-type or N-type power supply on a single receiver varies in a nearly sinusoidal function depending on receiver's position along the driving direction.…”

Section: Introductionmentioning

confidence: 99%

“…A scale down laboratory prototype of 3-kW is developed to experimentally verify the feasibility and effectiveness of the proposed system. Furthermore, in order to show the superiority of the proposed system, a comparison with similar systems is carried out [12][13][14], [21][22]. The following are the main benefits:…”

Section: Introductionmentioning

confidence: 99%

“…A 3-kW prototype is built and tested to demonstrate the validity of the proposed method and to evaluate the performance of the proposed WDC system. The system comparison with other similar systems [12,13,14,21,22] is presented in Section V. Finally, some conclusions are given in Section VI. Fig.…”

Section: Introductionmentioning

confidence: 99%

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A High-Power Multiphase Wireless Dynamic Charging System With Low Output Power Pulsation for Electric Vehicles

Dahidah

Pickert

et al. 2020

IEEE J. Emerg. Sel. Topics Power Electron.

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Wireless Dynamic Charging (WDC) of Electric Vehicles (EV) is a new initiative aimed to increase EV uptake. However, pulsating output power along the driving direction is a major problem with this technology. Moreover, in order to deliver enough driving power for EVs, WDC systems must operate at high power. This paper proposes a WDC system that has the capability of providing a low pulsating and high output power to EVs. The proposed WDC utilizes multiple primary windings that guarantees a homogeneous mutual magnetic flux for the receiver along the driving direction. This results in a constant induced voltage across the receiver and hence constant output power to charge the EV battery. High output power is realized by using multiple transmitter windings which have been arranged in a novel winding method. The structure layout of the proposed WDC, including ferrite cores, windings and resonant tanks is presented. Furthermore, a theoretical analysis is conducted to determine conditions of each winding's current phase and amplitude for achieving constant output power. The crossing mutual inductances between the different transmitter's phases are compensated by adding small capacitors in series with each transmitter winding. An optimization analysis using Maxwell 3D simulation for both, transmitter and receiver is carried out to achieve the highest coupling factor by using minimum ferrite material. The effectiveness of the proposed system is analytically demonstrated and experimentally verified using a 3-kW laboratory prototype. Finally, the performance of the proposed method is compared with similar systems presented in the literature. The comparison shows that the proposed system has the advantages of using simple control, it also eliminates communications between the primary and secondary side and delivers a normalized power of 2.25 which is 125% higher compared to conventional single-phase systems.

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Section: Illustrative Design Example Of Three-phase Wdc Systemmentioning

confidence: 99%