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.

Maximum Power Transfer of Wireless Charging System Using a Data-Based Approach

2021 ◽  
Author(s):  
Balaji Sriram ◽  
Sanjeevikumar Padmanaban ◽  
Vidhya Sagar Devendran ◽  
Sharmeela Chenniappan ◽  
Elango Sundaram
Keyword(s):  
Maximum Power ◽  
Wireless Charging ◽  
Power Transfer ◽  
Charging System

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.

Selection of maximum power transfer region for resonant inductively coupled wireless charging system

2018 ◽  
Vol 84 ◽  
pp. 84-92 ◽  
Author(s):  
Durga P. Kar ◽  
Sushree S. Biswal ◽  
Pradyumna K. Sahoo ◽  
Praveen P. Nayak ◽  
Satyanarayan Bhuyan
Keyword(s):  
Maximum Power ◽  
Wireless Charging ◽  
Power Transfer ◽  
Inductively Coupled ◽  
Charging System ◽  
Transfer Region ◽  
Selection Of

Wireless Charging of Electric Vehicles: A Review and Experiments

2011 ◽  
Author(s):  
Chengbin Ma ◽  
Minfan Fu ◽  
Xinen Zhu
Keyword(s):  
Magnetic Resonance ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
High Efficiency ◽  
System Level ◽  
Prototype System ◽  
Wireless Charging ◽  
Charging System ◽  
Magnetic Resonance Coupling ◽  
Resonance Coupling

In this paper, the technologies for electric vehicle wireless charging are reviewed including the inductive coupling, magnetic resonance coupling and microwave. Among them, the magnetic resonance coupling is promising for vehicle charging mainly due to its high efficiency and relatively long transfer range. The design and configuration of the magnetic resonance coupling based wireless charging system are introduced. A basic experimental setup and a prototype electric vehicle wireless charging system are developed for experimental and research purposes. Especially the prototype system well demonstrates the idea of fast and frequent wireless charging of supercapacitor electric vehicles using magnetic resonance coupling. Though the idea of wireless energy transfer looks sophisticated, it is proved to be a handy technology from the work described in the paper. However, both component and system-level optimization are still very challenging. Intensive investigations and research are expected in this aspect.

Study on Topology Design of Wireless Power Transfer for Electric Vehicle Based on Magnetic Resonance Coupling

2011 ◽  
Vol 308-310 ◽  
pp. 1000-1003 ◽  
Author(s):  
Hao Qiang ◽  
Xue Liang Huang ◽  
Lin Lin Tan ◽  
Hui Huang
Keyword(s):  
Magnetic Resonance ◽  
Electric Vehicle ◽  
High Efficiency ◽  
Wireless Power Transfer ◽  
High Sensitivity ◽  
Topology Design ◽  
Power Transfer ◽  
Wireless Power ◽  
Magnetic Resonance Coupling ◽  
Resonance Coupling

Wireless power transfer (WPT) is required for the diffusion of Electric Vehicle (EV) because it makes possible the process of automatically charging EV. Magnetic resonance coupling is a new technology for WPT, which can transfer a large amount of energy with high efficiency in middle distance. In this paper the topology design of WPT for EV by using this technology is investigated. Through theoretical analysis we obtain expressions of optimal efficiency with different topologies based on equivalent circuits and define a condition criterion, which is related with load resistance, transmission distance, resonance frequency and coil size. According to the condition criterion we can design the appropriate topology easily to guarantee optimal transmission efficiency. Finally, simulations and experiments show that the defined condition criterion has high sensitivity and the proposed method of designing topology is effective and feasible.

scholarly journals Electric vehicle technology impacts on energy

2019 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Wael A. Salah ◽  
Mahmoud A. M. Albreem ◽  
Basim Alsayid ◽  
Basem Abu Zneid ◽  
Mutasem Alkhasawneh ◽  
...  
Keyword(s):  
Control Systems ◽  
Electric Vehicle ◽  
High Efficiency ◽  
Harmonic Distortion ◽  
Digital Signal ◽  
Environmental Issues ◽  
Gasoline Price ◽  
Continuous Increase ◽  
Vehicle Technology ◽  
Propulsion Unit

The CO<sub>2</sub> emission level is becoming a serious issue worldwide. The continuous increase in gasoline price forms the essential base of development of electric vehicle (EV) drives. Moreover, economic and environmental issues relate to fabrication and operation of traditional powered vehicles. The basic considerations and development perspectives of EVs are presented in this paper. The development of an efficiently designed motor and drive satisfy the need of efficient characteristics that enable EVs to perform as part of the propulsion unit. The use of digital signal controllers compared with conventional control systems minimizes the motor’s total harmonic distortion, lowers operating temperatures, and produces high efficiency and power factor ratings. This paper addresses the view of EV technology as well its advantages over other technologies.

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.

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