Design Methodology and Circuit Analysis of Wireless Power Transfer Systems Applied to Electric Vehicles Wireless Chargers

Bouanou, Tasnime; Fadil, H. El; Lassioui, Abdellah; Bentalhik, I.; Koundi, Mohamed; Jeilani, Sidina El

doi:10.3390/wevj14050117

Cited by 9 publications

(4 citation statements)

References 31 publications

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“…Equation (12) illustrates the relationship between the coupling coefficient and mutual inductance [36]. In WPT systems, the power transfer depends on the coupling coefficient, which, in turn, depends on the coil design [39]. Moreover, the coupling coefficient also depends on the precise alignment of the coils.…”

Section: 𝐶 =mentioning

confidence: 99%

Design and Implementation of a Wireless Power Transfer System for Electric Vehicles

Sari

2024

WEVJ

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Wireless power transfer (WPT) systems, which have been around for decades, have recently become very popular with the widespread use of electric vehicles (EVs). In this study, an inductive coupling WPT system with a series–series compensation topology was designed and implemented for use in EVs. Initially, a 3D Maxwell (ANSYS Electromagnetics Suite 18) model of the system was generated. The impact of individual parameters on the coupling coefficient was analyzed through systematic variations in each parameter’s values. As a result, a system with a higher coupling coefficient was obtained. Using this system, three distinct load cases were investigated for their efficiency in the Simplorer (ANSYS Electromagnetics Suite 18) circuit. Subsequently, a prototype of the system was constructed, and the experimental results were compared with the model’s results. This study shows that both the output power and the efficiency of the system increase as the load resistance increases. The results obtained in this study are anticipated to offer valuable insights for the enhancement of WPT system design.

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Section: 𝐶 =mentioning

confidence: 99%

Design and Implementation of a Wireless Power Transfer System for Electric Vehicles

Sari

2024

WEVJ

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“…The dimensions of coupling coils have a substantial impact on the inductive parameters [4]. The authors introduced a design methodology for a serial-serial (SS) wireless system, detailing the process of determining optimal pad dimensions to facilitate power transfer to the EV battery [5]. Many academics and industry experts are focused on transferring maximum power to the receiving pad, which boosts an EV's efficiency in dynamic conditions.…”

Section: Introductionmentioning

confidence: 99%

Coil Parameter Analysis for Inductively Coupled Wireless Charging for Electric Vehicles

Chakibanda,

Komanapalli

2024

Vehicles

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Wireless charging (WC) has gained popularity for the charging of electric vehicles in recent years of research, particularly dynamic wireless charging systems (DWCSs). Among the different topologies of DWCSs, this paper focuses on an inductively coupled wireless charging system (ICWCS). In this ICWCS, double-D (DD) coils create horizontal and vertical flux components between different pad configurations, which show optimal features in contrast to circular pad coils. In this work, the three-dimensional (3D) finite element technique (FEM) is used to establish the proposed design to observe the coupling coefficient, while the system design’s performance is evaluated using a circuit simulator. In the simulation, the proposed DD coil configuration is used for both the transmitter and receiver sides. It provides the maximum coupling coefficient and efficiency at perfect alignment when using an in-between air gap of 166 mm and six I-type ferrite bars on the transmitter side and five I-type ferrite bars on the receiver side. The coupling coefficient and system parameters, such as power and efficiency, are considered for different misalignments in the proposed configuration. The results of this work satisfy the Society of Automotive Engineers (SAE) J2954 Class 3 criteria. The best results obtained are on account of optimizing the ferrite core, which is achieved by varying its length and width. While varying the ferrite core’s dimensions, 0.2451, as the optimal k value, is obtained at the effective width and length of 57.5 mm and 400 mm, respectively. The simulation results of the Ansys Maxwell 3D software prove the feasibility of the proposed structure.

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“…Another explored method is electromagnetic induction technology, which demonstrated effective working at short distances (a few centimeters) with high efficiencies in a particular study. However, this method has limitations, including the need for close proximity and challenges in aligning the coils due to the short distance [6]. Magnetic resonance coupling theory represents a groundbreaking wireless energy transfer technology that originated in 2007 with the invention of WiTricity by MIT scientists.…”

Section: Introductionmentioning

confidence: 99%

Analysis of a transformer designed for wireless power transmission system for different distance and alignment conditions and optimization with a developed algorithm

Ozupak,

Cinar

2024

Scientia Iranica

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In this study, the investigation of various positions of receiver and transmitter coils in a wireless power transfer (WPT) system was conducted using magnetic resonance-based coupling theory. The aim was to determine the air gap limits for achieving high efficiency in analyzing different coil positions. Selfinductance, mutual inductance, and coupling coefficient were calculated for this purpose. The efficiency of the system was determined for different coil positions by calculating input and output powers. Additionally, an optimized wireless power transfer system was achieved using the developed Wound Healing Algorithm (WHA). The MATLAB Simulink was employed to obtain mutual inductance and coupling coefficient values based on the distance between the coils in the wireless power system. The efficiency of the system was then calculated. The results were compared with those obtained from ANSYS Maxwell for interpretation. The findings indicated efficient power transfer up to specific distances in various coil positions. The points where efficiency started to decrease provided insights into determining the air gap and angular limits of the designed WPT system.

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Design Methodology and Circuit Analysis of Wireless Power Transfer Systems Applied to Electric Vehicles Wireless Chargers

Cited by 9 publications

References 31 publications

Design and Implementation of a Wireless Power Transfer System for Electric Vehicles

Design and Implementation of a Wireless Power Transfer System for Electric Vehicles

Coil Parameter Analysis for Inductively Coupled Wireless Charging for Electric Vehicles

Analysis of a transformer designed for wireless power transmission system for different distance and alignment conditions and optimization with a developed algorithm

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