13.56 MHz Scalable Shielded-Capacitive Power Transfer for Electric Vehicle Wireless Charging

2020 ◽  
Author(s):  
Aam Muharam ◽  
Suziana Ahmad ◽  
Reiji Hattori ◽  
Abdul Hapid
Keyword(s):  
Electric Vehicle ◽  
Wireless Charging ◽  
Power Transfer

scholarly journals Efficient wireless charging system for supercapacitor-based electric vehicle using inductive coupling power transfer technique

2019 ◽  
Vol 11 (11) ◽  
pp. 168781401988696
Author(s):  
Ahsan Elahi ◽  
Arslan Ahmed Amin ◽  
Umar Tabraiz Shami ◽  
Muhammad Tayyab Usman ◽  
Muhammad Sajid Iqbal
Keyword(s):  
Electric Vehicle ◽  
Inductive Coupling ◽  
Wireless Charging ◽  
Power Transfer ◽  
Charging System ◽  
Energy Demands ◽  
Experimental Implementation ◽  
Power Transfer Efficiency ◽  
The Cost ◽  
Mathematical Relationships

Wireless charging has become an emerging challenge to reduce the cost of a conventional plug-in charging system in electric vehicles especially for supercapacitors that are utilized for quick charging and low-energy demands. In this article, the design of an efficient wireless power transfer system has been presented using resonant inductive coupling technique for supercapacitor-based electric vehicle. Mathematical analysis, simulation, and experimental implementation of the proposed charging system have been carried out. Simulations of various parts of the systems are carried out in two different software, ANSYS MAXWELL and MATLAB. ANSYS MAXWELL has been used to calculate the various parameters for the transmitter and receiver coils such as self-inductance ( L), mutual inductance ( M), coupling coefficient ( K), and magnetic flux magnitude ( B). MATLAB has been utilized to calculate output power and efficiency of the proposed system using the mathematical relationships of these parameters. The experimental setup is made with supercapacitor banks, electric vehicle, wattmeters, controller, and frequency generator to verify the simulation results. The results show that the proposed technique has better power transfer efficiency of more than 75% and higher power transfer density using a smaller coil size with a bigger gap of 4–24 cm.

scholarly journals Gallium Nitride Inverter Design with Compatible Snubber Circuits for Implementing Wireless Charging of Electric Vehicle Batteries

Machines ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 56 ◽  
Author(s):  
Fatemeh Rahmani ◽  
Payam Niknejad ◽  
Tanushree Agarwal ◽  
Mohammadreza Barzegaran
Keyword(s):  
Gallium Nitride ◽  
Electric Vehicle ◽  
Energy Savings ◽  
High Efficiency ◽  
Harmonic Distortion ◽  
Time Frame ◽  
Maximum Power ◽  
Wireless Charging ◽  
Power Transfer ◽  
Gate Drivers

High-frequency wireless power transfer (WPT) technology provides superior compatibility in the alignment with various WPT standards. However, high-efficiency and compact single-phase power switching systems with ideal snubber circuits are required for maximum power transfer capability. This research aims to develop an inverter using Gallium Nitride (GaN) power transistors, optimized RCD (resistor/capacitor/diode) snubber circuits, and gate drivers, each benefitting WPT technology by reducing the switching and conduction loss in charging electric vehicle batteries. A full-bridge GaN inverter was simulated and instituted as part of the wireless charging circuit design. The RCD circuits were adjusted by transferring maximum power from the power supply to the transmitter inductor. For verification of the simulated output, lab-scale experiments were implemented for two half-bridges controlled by gate drivers with corresponding snubber circuits. After authenticating the output results, the GaN inverter was tested with an input range of 30 V to deduce the success of charging electric vehicle batteries within an efficient time frame. The developed inverter, at 80 kHz frequency, was applied in place of a ready-to-use evaluation board, fully reducing less harmonic distortion and greatly increasing WPT system efficiency (~93%). In turn, the designed GaN inverter boasts considerable energy savings, resulting in a more cost-effective solution for manufacturers.

scholarly journals Modeling, Analysis, and Implementation of Series-Series Compensated Inductive Coupled Power Transfer (ICPT) System for an Electric Vehicle

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Moustapha Elwalaty ◽  
Mohamed Jemli ◽  
Hechmi Ben Azza
Keyword(s):  
Electric Vehicle ◽  
Mathematical Expression ◽  
Electrical Circuit ◽  
Air Gap ◽  
Battery Life ◽  
Receiver Coil ◽  
Wireless Charging ◽  
Power Transfer ◽  
Charging System ◽  
Transmitter Coil

This paper focuses on the modeling and implementation of an Electric Vehicle (EV) wireless charging system based on inductively coupled power transfer (ICPT) technique where electrical energy can be wirelessly transferred from source to vehicle battery. In fact, the wireless power transfer (WPT) system can solve the fundamental problems of the electric vehicle, which are the short battery life of the EV due to limited battery storage and the user safety by handling high voltage cables. In addition, this paper gives an equivalent electrical circuit of the DC-DC converter for WPT and comprises some basic components, which include the H-bridge inverter, inductive coupling transformer, filter, and rectifier. The input impedance of ICPT with series-series compensation circuit, their phases, and the power factor are calculated and plotted by using Matlab scripts programming for different air gap values between the transmitter coil and receiver coil. The simulation results indicate that it is important to operate the system in the resonance state to transfer the maximum real power from the source to the load. A mathematical expression of optimal equivalent load resistance, corresponding to a maximal transmission efficiency of a wireless charging system, was demonstrated in detail. Finally, a prototype of a wireless charging system has been constructed for using two rectangular coils. The resonant frequency of the designed system with a 500 × 200 mm transmitter coil and a 200 × 100 mm receiver coil is 10 kHz. By carefully adjusting the circuit parameters, the implementation prototype have been successfully transferred a 100 W load power through 10 cm air gap between the coils.

Solar Powered Electric Vehicle Through Wireless Power Transfer

2021 ◽  
pp. 219-242
Author(s):  
Balamurugan M. ◽  
Raghu N. ◽  
Kamala N. ◽  
Trupti V. Nandikolmath ◽  
Sarat Kumar Sahoo
Keyword(s):  
Electric Vehicle ◽  
Wireless Power Transfer ◽  
Maintenance Cost ◽  
Time Range ◽  
Small Scale ◽  
Wireless Charging ◽  
Power Transfer ◽  
Wireless Power ◽  
Electric Vehicle Charging ◽  
Solar Powered

Solar powered wireless electric vehicle charging technology functions independently without interface with the utility grid. Wireless power transfer (WPT) technology is incorporated for wireless charging, which brings the benefits of safe operation, less pollution, and little maintenance cost. WPT technology necessitates no physical connection between the charging device and vehicle, thus hazards and inconvenience produced by conventional charging methods have been minimized. WPT in electric vehicle can be used to reduce the charging time, range, and cost. In this chapter, the various configurations of WPT like inductive, capacitive, resonant, and roadway power transfer techniques have been presented. The small-scale prototype of wireless charging has been developed in the laboratory by incorporating inductive power transfer technique. The experimental results have been presented to validate the feasibility of the system in real time.

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

2021 ◽  
Vol 12 (3) ◽  
pp. 1459
Author(s):  
Nadia Nazieha Nanda ◽  
Mohd Shahrin Abu Hanifah ◽  
Siti Hajar Yusoff ◽  
Nadirah Abdul Rahim ◽  
Mashkuri Yaacob ◽  
...  
Keyword(s):  
Electric Vehicle ◽  
Depth Perception ◽  
System Architecture ◽  
Wireless Power Transfer ◽  
Wireless Charging ◽  
Power Transfer ◽  
Wireless Power ◽  
The Road ◽  
Ev Charging

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.

scholarly journals PERFORMANCE ANALYSIS ON DYNAMIC WIRELESS CHARGING FOR ELECTRIC VEHICLE USING FERRITE CORE

2022 ◽  
Vol 23 (1) ◽  
pp. 46-59
Author(s):  
Siti Hajar Yusoff ◽  
Amira Aziera Abdullah ◽  
Nadia Nazieha Nanda ◽  
Ahmed Samir Abed Badawi
Keyword(s):  
Electric Vehicle ◽  
Power Efficiency ◽  
Design Guidelines ◽  
Wireless Charging ◽  
Power Transfer ◽  
Wireless Power ◽  
Ferrite Core ◽  
Output Analysis ◽  
Charging System ◽  
Efficient Coupling

The technology of dynamic Wireless Power Transfer (WPT) has been accepted in the Electric Vehicle (EV) industry. Recently, for a stationary EV charging system, the existence of a ferrite core improves power efficiency. However, for dynamic wireless charging, the output power fluctuates when the EV moves. Two main obstacles that must be dealt with is air-gaps and misalignment between the coils. This paper investigates clear design guidelines for fabrication of an efficient Resonant Inductive Power Transfer (RIPT) system for the EV battery charging application using a ferrite core. Two different geometry shapes of ferrite core, U and I cores, will be investigated and tested using simulation and experimental work. The proposed design was simulated in JMAG 14.0, and the prototype was tested in the laboratory. The expected output analysis from these two techniques was that the power efficiency of the ferrite pair should first be calculated. From the analysis and experimental results, it is seen that the pair of ferrite cores that used a U shape at the primary and secondary side provides the most efficient coupling in larger air-gap RIPT application with 94.69% on simulation JMAG 14.0 and 89.7% from conducting an experiment. ABSTRAK: Teknologi Alih Kuasa Wayarles (WPT) dinamik telah diterima pakai dalam Kenderaan Elektrik (EV). Baru-baru ini, kewujudan teras ferit dalam sistem pengecasan pegun EV dapat meningkatkan kecekapan kuasa. Namun, kuasa pengecasan ini akan berubah apabila EV bergerak bagi sistem pengecasan wayarles secara dinamik. Dua halangan utama yang harus ditangani adalah ketidakjajaran dan jarak antara dua gegelung. Kajian ini merupakan garis panduan yang jelas mengenai rekaan fabrikasi dan kecekapan sistem Alih Kuasa Induktif Resonan (RIPT) bagi aplikasi pengecasan bateri EV menggunakan teras ferit. Dua bentuk geometri teras ferit, iaitu teras U dan I telah dikaji dan diuji menggunakan simulasi dan eksperimen. Rekaan ini telah disimulasi menggunakan JMAG 14.0 dan prototaip diuji di dalam makmal. Kedua-dua teknik ini diharapkan dapat menghasilkan kecekapan kuasa yang sama. Dapatan kajian menunjukkan kedua-dua teras ferit pada sisi primer dan sekunder berbentuk U mempunyai gandingan paling efisien bagi jarak paling besar antara 2 gegelung menggunakan aplikasi RIPT dengan 94.69% simulasi JMAG 14.0 dan 89.7% secara eksperimen.

Sign in / Sign up

Export Citation Format

Share Document