A Double Helix Flux Pipe-Based Inductive Link for Wireless Charging of Electric Vehicles

Hwang, Young Jin; Kim, Jongmyung

doi:10.3390/wevj11020033

Cited by 6 publications

(5 citation statements)

References 31 publications

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“…The peak efficiency is due to the fact that when the capacitors are tuned to the calculated expressions, the overall reactance of the circuit is cancelled and the power transfer capacity is increased. This is well illustrated in (8) and (9). The peak efficiency is due to the fact that when the capacitors are tuned to the calculated expressions, the overall reactance of the circuit is cancelled and the power transfer capacity is increased.…”

Section: Effect Of the Compensation Network On The Efficiency Of The ...mentioning

confidence: 72%

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Analysis, Design and Realization of a Wireless Power Transfer Charger for Electric Vehicles: Theoretical Approach and Experimental Results

Bentalhik

Lassioui

Fadil

et al. 2022

WEVJ

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Wireless power transfer (WPT) chargers are promising solutions for charging electric vehicles (EVs). Due to their advantages such as ease and safety of use, these chargers are increasingly replacing conductive ones. In this paper, we first provide a detailed analysis to illustrate the effect of varying parameters on the operation of the WPT charger. Secondly, we present the main design steps of the charger elements while respecting the recommendations of the SAEJ2954 standard in terms of operating frequency, efficiency and misalignments. Regarding the design of the ground-side and vehicle-side coils, we propose three different circular geometries whose parameters are determined using an iterative approach. The latter is compared with a finite element analysis performed under Ansys Maxwell software showing the convergence between theoretical calculations and the simulation results. Finally, an experimental prototype with a power of 500 W is realized. In addition, different test scenarios are performed to validate the proposed design approach. In this respect, an efficiency of 90% is obtained for a power of 500 W and a distance between coils of 125 mm. Moreover, the test of the charger in the most unfavorable operating case (misalignments of Δx = 70 mm, Δy = 10 mm and Δz = 150 mm) gives an efficiency of 83.5%, which remains above the limit of the SAEJ2954 standard.

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Section: Effect Of the Compensation Network On The Efficiency Of The ...mentioning

confidence: 72%

“…Regarding safety and ease of use, powering an EV using the wireless method is much easier and safer for the user [8]. In addition, the absence of physical contact (no mechanical friction) can reduce the maintenance of the wireless charger and prolong its lifetime [9,10]. The circuit topology of a WPT charger is shown in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

Analysis, Design and Realization of a Wireless Power Transfer Charger for Electric Vehicles: Theoretical Approach and Experimental Results

Bentalhik

Lassioui

Fadil

et al. 2022

WEVJ

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show abstract

“…The DD coil structure is named after its unique shape-the coil is composed of two square or rectangular coils that are connected in series. The DD coil generates a directional magnetic flux along one of the axes-similar to a flux-pipe-type coupler [23][24][25][26]. The main advantage of the DD coil is better misalignment tolerance compared to the nondirectional planar coils.…”

Section: Dd Planar Coil Measurement Resultsmentioning

confidence: 99%

3D Platform for Coupling Coefficient Evaluation of an Inductive Power Transfer Systems

Domajnko

Milanovič

Prosen

2022

Sensors

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This paper presents a custom-made, computer-connected, and controlled 3D platform that enables the evaluation of the coupling coefficient between the transmitter and receiver coil parts of an inductive wireless power transfer (IPT) system. The platform includes a computer application, a 3D positioning mechanism, and an inductance measurement circuit. The positioning mechanism moves the coils to the point in 3D space, and the inductance circuit measures the mutual inductance between the transmitter and the receiver coil. The measured value can be used to calculate the coupling coefficient between the transmitter and the receiver coil. The data are sent to the computer for further visualisation. The transmitter and the receiver coil can be evaluated by measuring the coupling coefficient between them in multiple points in space. Measurements performed with the platform can be used in the design and evaluation phases of inductive wireless power transfer systems and to extrapolate the polynomial function of the coupling coefficient in relation to the distance between coils or their misalignment.

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“…Although it contains little tolerance of lateral misalignment, its power transfer competence reduces considerably through misalignment. A number of studies on flux pipe topology have been carried out based on the poor misalignment routine of flat coil topology due to their excellent misalignment tolerance 32 …”

Section: Recent Research Work: a Brief Reviewmentioning

confidence: 99%

Mitigating unbalance and improving voltage considering higher penetration of EVs and DG using hybrid optimization technique

Saravanan

Kannayeram

Muniraj³

2021

Int Trans Electr Energ Syst

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Summary In this manuscript, an efficient hybrid method is proposed aimed at mitigating imbalance, improving the voltage in the higher penetration of electric vehicles (EVs) and distributed generation (DG). The proposed hybrid method is the combination of the mayfly algorithm (MA) and the radial basis function neural network (RBFNN), called the mayfly algorithm‐radial basis function neural network (MA‐RBFNN) method. These major contributions of the proposed work mitigate network unbalancing and voltage profile with the loss of network energy, utilize obtainable network capacity and enlarge the comfort level for EV consumers. The MA is utilized for solving the multi‐objective optimization issue of coordinating EV together with DG in the distribution grid. The RBFNN agrees with the distribution system operators to mutually enhance the phase sequence with the optimum dispatch of DGs for improving the performance of the network. The proposed system allows distribution system operators to mutually enhance the phase sequence with an optimum DG dispatch for recovering the performance of the network and solve the multi‐objective optimization issue of coordinating EV and DG on the distribution network. This proposed technique is implemented on the MATLAB/Simulink platform as well as evaluated for efficiency, likened to the existing methods such as genetic algorithm (GA), particle swarm optimization (PSO) and MA technique. The performance of the proposed method was analysed in terms of quality of solution comparison, integral of the time‐weighted absolute error (ITAE), integral squared error (ISE) and loss reduction (%). These comparative outcomes display the eminence of the proposed method more than any other existing technique.

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A Double Helix Flux Pipe-Based Inductive Link for Wireless Charging of Electric Vehicles

Cited by 6 publications

References 31 publications

Analysis, Design and Realization of a Wireless Power Transfer Charger for Electric Vehicles: Theoretical Approach and Experimental Results

Analysis, Design and Realization of a Wireless Power Transfer Charger for Electric Vehicles: Theoretical Approach and Experimental Results

3D Platform for Coupling Coefficient Evaluation of an Inductive Power Transfer Systems

Mitigating unbalance and improving voltage considering higher penetration of EVs and DG using hybrid optimization technique

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