Research on Modelling Inductive Power Transfer for Electric Vehicles

2019 ◽  
pp. 255-291
Author(s):  
Michela Longo ◽  
Morris Brenna ◽  
Federica Foiadelli
Keyword(s):  
Electric Vehicles ◽  
Fossil Fuels ◽  
International Energy Agency ◽  
Institutional Research ◽  
Power Transfer ◽  
Wireless Power ◽  
Energy Agency ◽  
Inductive Power Transfer ◽  
Large Cities ◽  
Inductive Power

The environmental pollution caused by fossil fuels is a hot issue around the world in recent years. The gases lead to poor air quality, in particular in large cities, and the global warming that can cause ecological calamity such as tropical cyclones, heatwaves, drought, and extreme tides. International Energy Agency clearly states that the current energy trend is not sustainable environmentally, economically, and socially. Therefore, it must devise solutions to achieve the future economic growth without adverse environmental effects. The increasing diffusion of electric vehicles is driving academic and institutional research towards exploring different possible ways of charging vehicles in a fast, reliable, and safe way. For this reason, wireless power transfer systems have recently been receiving a lot of attention in the academic literature. This chapter reviews the main analytic and computational tools that are typically used to perform analyses in the context of inductive power transfer systems (IPTSs).

Thermal Evaluation of an Inductive Power Transfer Pad for Charging Electric Vehicles

2021 ◽  
pp. 1-1
Author(s):  
Seho Kim ◽  
Maedeh Amirapour ◽  
Tharindu Dharmakeerthi ◽  
Vahid Zahiri Barsari ◽  
Grant A. Covic ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Inductive Power

Using Sensing Coils to Detect and Correct Lateral Misalignments in an Inductive Power-Transfer Wireless Charging System

2017 ◽  
Author(s):  
Ivan Cortes ◽  
Won-jong Kim
Keyword(s):  
Consumer Products ◽  
Wireless Charging ◽  
Power Transfer ◽  
Wireless Power ◽  
Inductive Power Transfer ◽  
Charging System ◽  
Field Symmetry ◽  
Electrical Transformers ◽  
Efficient Power ◽  
Inductive Power

Inductive power transfer (IPT) remains one of the most common ways to achieve wireless power transfer (WPT), operating on the same electromagnetic principle as electrical transformers but with an air core. IPT has recently been implemented in wireless charging of consumer products such as smartphones and electric vehicles. However, one major challenge with using IPT remains ensuring precise alignment between the transmitting and receiving coils so that maximum power transfer can take place. In this paper, the use of additional sensing coils to detect and correct lateral misalignments in an IPT systems is modeled and tested. The sensing coils exploit magnetic-field symmetry to give a nonlinear measure of misalignment direction and magnitude. Experiments using such sensing coils give a misalignment-sensing resolution of less than 1 mm when applied to a common smartphone wireless charging system. Voltage readings from the sensing coils are used for feedback control of an experimental two-dimensional coil positioner. This system is able to reduce lateral misalignments to less than 2 mm in real time, allowing for efficient power transfer. The results of this experiment give confidence that similar sensing coils can be used to reduce lateral misalignments in scaled IPT systems, such as electric-vehicle wireless chargers.

scholarly journals Feasibility Study GaN Transistors Application in the Novel Split-Coils Inductive Power Transfer System with T-Type Inverter

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4535
Author(s):  
Viktor Shevchenko ◽  
Bohdan Pakhaliuk ◽  
Oleksandr Husev ◽  
Oleksandr Veligorskyi ◽  
Deniss Stepins ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Wireless Power Transfer ◽  
Simulation Software ◽  
Circuit Board ◽  
Transfer System ◽  
Power Transfer ◽  
Wireless Power ◽  
Inductive Power Transfer ◽  
Wireless Power Transfer System ◽  
Inductive Power

A promising solution for inductive power transfer and wireless charging is presented on the basis of a single-phase three-level T-type Neutral Point Clamped GaN-based inverter with two coupled transmitting coils. The article focuses on the feasibility study of GaN transistor application in the wireless power transfer system based on the T-type inverter on the primary side. An analysis of power losses in the main components of the system is performed: semiconductors and magnetic elements. System modeling was performed using Power Electronics Simulation Software (PSIM). It is shown that the main losses of the system are static losses in the filter inductor and rectifier diodes on the secondary side, while GaN transistors can be successfully used for the wireless power transfer system. The main features of the Printed Circuit Board (PCB) design of GaN transistors are considered in advance.

A Review of Methods and Challenges for Improvement in Efficiency and Distance for Wireless Power Transfer Applications

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Sokol Kuka ◽  
Kai Ni ◽  
Mohammed Alkahtani
Keyword(s):  
Electric Vehicles ◽  
Power Efficiency ◽  
Near Field ◽  
Electronic Devices ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Inductive Power Transfer ◽  
The Past ◽  
Transmission Distance

AbstractOver the past few years, interest and research in wireless power transfer (WPT) have been rapidly incrementing, and as an effect, this is a remarkable technology in many electronic devices, electric vehicles and medical devices. However, most of the applications have been limited to very close distances because of efficiency concerns. Even though the inductive power transfer technique is becoming relatively mature, it has not shown near-field results more than a few metres away transmission. This review is focused on two fundamental aspects: the power efficiency and the transmission distance in WPT systems. Introducing the principles and the boundaries, scientific articles will be reviewed and discussed in terms of their methods and respective challenges. This paper also shows more important results in efficiency and distance obtained, clearly explaining the theory behind and obstacles to overcome. Furthermore, an overlook in other aspects and the latest research studies for this technology will be given. Moreover, new issues have been raised including safety and security.

Sign in / Sign up

Export Citation Format

Share Document