Wireless Charging Technology Research Articles

A Review on Wireless Charging for Electric Vehicles

Energy is available in various forms from different natural sources such as solar energy, nuclear energy and chemical energy of fuels. The paper gives wireless charging techniques for electrical vehicle using solar energy. The fuel existing cars produces noise, air pollution and it produces major effects on an environment. But the wireless charging technology overcomes this pollution problems. Wireless power Transmission is very reliable, efficient, noiseless and pollution free technology. WPT is popular and gaining technology finding its application in various fields. It uses the principle of mutual inductance. Keywords— WPT-Wireless Power Transmission, EV- Electrical Vehicles, IPT-Inductive Power Technology

Components of Wireless Charging Technology for Smart Cars and Simple Applications

A wireless charging smart car that can perform rapid short-term wireless charging was designed in this research. This car features energy-saving, fast, and efficient operation, with strong usability and potential for development. The CH32V307VCT6 microcontroller is used as the main controller for the smart car, and the CH32V203C8T6 microcontroller functions as a control chip for the wireless charging transmitting end. Combining the use of a super-capacitor group as an energy storage device along with the DRV8701 motor drive and corresponding sensors, it enables the smart car to accomplish wireless charging and automatic tracking. The wireless transmission terminal of this project employs an LCC compensation circuit method and an inverter circuit to achieve high-power wireless charging of 600W. The wireless charging receiver module receives and converts electrical energy to ultimately power the movement of the smart car.

Wireless Electric Vehicle Chargers Using Solar Energy

This study presents a novel wireless electric vehicle (EV) charger powered by solar energy, integrating wireless charging technology with renewable sources. Core components include solar panels, a wireless charging transmitter, and an EV-installed receiver. Solar panels harness sunlight, managed by a power system, and wirelessly transfer power to the EV via a transmitter-receiver setup. Safety features like overcharge protection ensure user safety, with real-time monitoring optimizing efficiency. The system reduces reliance on grid electricity, minimizing carbon emissions. Future research focuses on scalability, cost-effectiveness, and optimization for widespread adoption. Key Words:- Aurdino, Relay, Solar Panel, Boost Converter, Wireless Power Transmission, I2C Display, Ultra Sonic Sensor

Continuously Safe Wireless Charging for Electric Vehicles

Wireless charging technology has emerged as a promising solution for improving the convenience and efficiency of electric vehicle (EV) charging. This literature review examines the current state of the art in sustainable and safe wireless charging technology for electric vehicles. It provides insight into technological advances, safety considerations, and challenges associated with implementing wireless charging technology, safety considerations, and challenges associated with implementing wireless charging systems. Through a comprehensive examination of existing research and innovations, this review aims to provide insights into the future of wireless charging for electric vehicles.

Planning dynamic wireless charging infrastructure for battery electric bus systems with the joint optimization of charging scheduling

To address the battery-related shortcomings of battery electric buses (BEBs), dynamic wireless charging (DWC) technology that allows BEBs to charge while in motion has emerged, thereby extending the driving range and reducing the size of onboard batteries. The introduction of DWC technology raises a critical problem, namely, the deployment of DWC facilities. To resolve the infrastructure planning problem, this study first proposes a (higher-level) strategic planning model that optimizes the deployment of DWC facilities and battery capacity of BEBs, and then establishes a (lower-level) tactical planning model of optimal charging scheduling under the time-of-use (TOU) tariff mechanism considering the interdependence between infrastructure design and charging activities of BEBs. Mixed-integer nonlinear programming (MINLP) is proposed to optimize the model, aiming to minimize the overall cost associated with charging facilities, batteries, and charging. The proposed optimization model is tested and evaluated using a real-world bus system network, and the results demonstrate that the model effectively determines the DWC facility locations and battery sizes and optimizes the charging scheduling considering the TOU tariff for BEBs. The proposed model in this study provides a comprehensive guideline for relevant practitioners and further promotes the application of DWC technology in BEBs.

Interoperability Study of Wireless Charging System Based on Generalized DD Coil

In recent years, with the popularization of intelligent auxiliary driving technology, wireless charging technology has garnered widespread attention due to its advantages in automation. However, there are still many issues to be resolved before the widespread adoption of wireless charging technology, with a key issue being the interoperability of coupling structures. To achieve adaptive interoperability, this paper proposes a wireless charging system based on dual generalized double-D (DD) coils. The system introduces a receiving structure composed of two generalized DD coils, which can naturally decouple the two coils. At the same time, the system topology employs a series connection of half-bridge rectifiers to enhance the system’s equivalent mutual inductance. Mathematical models and simulation verifications are provided. The proposed approach has been validated through simulations, showing that the system can automatically achieve interoperability with unipolar coils, DD coils, and quadrupolar coils.

Solar wireless charging of battery in electrical vehicle

Energy comes from a variety of natural sources, including the sun, nuclear power plants, and the chemical energy found in fuels. This study explores innovative solar-powered wireless charging methods for electric vehicles, aiming to enhance both efficiency and environmental sustainability. Traditional gasoline-powered vehicles contribute significantly to air pollution, noise pollution, and environmental degradation. In contrast, wireless charging technology, particularly through wireless power transmission (WPT), offers a cleaner alternative by eliminating the need for physical connections and reducing the associated emissions. The study highlights that WPT is not only reliable and effective but also operates silently, further contributing to a reduction in urban noise pollution. By integrating solar power, this method not only supports sustainable energy practices but also advances the push towards a cleaner and quieter future for transportation.

Teaching Reform and Practice of “Power Electronics Technology” Course —Taking “Wireless Charging Technology” as an Example

Teaching Reform and Practice of “Power Electronics Technology” Course —Taking “Wireless Charging Technology” as an Example

Comprehensive Analysis of Wireless Charging Technology in Electric Vehicles

In this new era, transportation vehicles mainly uses non renewable primary energy - fossil fuels. In order to avoid energy shortages, electric vehicles using clean energy have emerged. New electric vehicles require fixed charging stations for charging, as traditional technologies such as fixed charging stations cannot be charged on the move and have longer charging cycles, acquire high equipment and environmental requirements, and require manual intervention, resulting in higher costs. Therefore, people urgently need new ways and mechanisms to optimize the charging process, reduce human intervention, and make the charging process safer, automated, and intelligent. Wireless charging WPT technology has just made up for many shortcomings of traditional charging stations, and can achieve high-speed and mobile charging. This article provides an overview of the technologies and principles applied in wireless charging of electric vehicles, as well as a comparison of different wireless charging technologies and their possible future development directions.

Recent Advances in Wireless Power Transfer Technologies for Electric Vehicles

With the advancement of innovative technology in the contemporary world, wireless power transfer technology is also playing an increasingly important role in electric vehicles. In the past, there did not have enough electric products and spaces to apply to this wireless charging technology so the use of it by humans is limited to some levels of understanding of the technology, such as one or two technical classifications contained in wireless power transfer (WPT). However, people have more in-depth research on convey of power wirelessly and charging for the electric vehicle nowadays. By reason of this situation, this paper focuses on the three technologies in the WPT system, which are magnetic resonant coupling, capacitive coupling, and inductive coupling. Meanwhile, the compensation network that is associated with three technologies is also illustrated directly in it. Additionally, it compares those technologies in a clear table with advantages and disadvantages. Eventually, it summarizes all the previous content and proposes a vision for the future improvement description.

Research on the Development Status of Static Wireless Charging Technology for Electric Vehicles

With the greenhouse effect and massive energy exploitation, the energy crisis and environmental issues have attracted more and more attention. Electric vehicles have received widespread attention for their advantages of clean energy saving, low noise, environmental protection, zero emission, and smooth start. Wireless charging technology has advantages that contact charging cannot match, such as safety and convenience. Therefore, the adoption of static wireless charging technology for electric vehicles represents a prominent future development trend. This article commences by presenting the current research landscape of static wireless charging technology for electric vehicles globally, elucidates the principles behind three such technologies, conducts a comparative analysis of their merits and demerits, and ultimately outlines the future technological trends in static wireless charging for electric vehicles.

Analytical review of wireless charging technologies for electric vehicles

Problem. The article provides a comprehensive analysis of the various wireless charging technologies tailored for electric vehicles (EVs). It delves into an in-depth exploration of existing methodologies, challenges, and prospective advancements in this burgeoning field. Goal. The purpose of this work is to conduct a comprehensive analysis and critical assessment of diverse wireless charging technologies tailored for electric vehicles (EVs). The primary aim is to systematically evaluate and elucidate the existing methodologies, highlighting their advantages, drawbacks, and key challenges prevalent in this domain. Methodology. The research methodology involves an extensive literature review to gather information on wireless charging technologies for electric vehicles. It includes data collection from reputable sources, comparative analysis of technologies based on efficiency and limitations, identification of trends and challenges, interpretation of findings, and conclusions with recommendations. Ethical considerations and acknowledgment of limitations are integral parts of the methodology. Originality. Research will focus on analyzing wireless charging technologies for electric vehicles, emphasizing original insights derived from comprehensive literature review, comparative analysis, and identification of emerging trends and challenges, ensuring unique contributions to the field. Ethical practices and acknowledgment of limitations will be integral aspects of the research. Conclusions. The study presents detailed results of a comparative analysis that highlights the effectiveness, limitations, and emerging trends in wireless charging technologies for electric vehicles. It presents the findings of a comprehensive review that provides insight into the current state and future prospects of these technologies. Practical value. Research aims to provide practical value by offering insights into the effectiveness, limitations, and future potential of wireless charging technologies for electric vehicles, contributing actionable recommendations for industry stakeholders and policymakers.

Wireless charging technologies for electric vehicles: Inductive, capacitive, and magnetic gear

AbstractWireless charging technologies have emerged as a promising solution for electric vehicle (EV) charging, offering convenience and automation. This paper provides a comprehensive review of the three key wireless charging technologies: inductive, capacitive, and magnetic gear. For inductive and capacitive technologies, the working principle, architectures, topologies, advantages, and challenges are discussed and analyzed considering both stationary and dynamic modes of operation. In addition, the paper introduces and analyzes the concept of mixed wireless power transfer, which combines inductive and capacitive charging systems. Additionally, the study explores the magnetic gear wireless power transfer technology, which leverages the interaction between synchronous permanent magnets to transmit power wirelessly. Various research and development efforts related to these technologies are reviewed considering academia, research labs and industry. A comparative analysis among different technologies is presented, considering key performance metrics such as power transfer, efficiency, cost, and operating frequency was presented. This review paper serves as a comprehensive resource for researchers, engineers, and industry professionals interested in wireless charging technologies for EV charging. It highlights the advancements, trade‐offs, and potential synergies among inductive, capacitive, and magnetic gear systems, paving the way for the widespread adoption of wireless charging and the development of self‐charging and self‐driving EVs.

A Measurement Method of Power Transferred to an Electric Vehicle Using Wireless Charging.

The increasing number of zero-emission vehicles on the roads demands novel vehicle charging solutions that ensure convenience, safety, increased charging infrastructure availability, and aesthetics. Wireless charging technology is seen as the one that could assure these desirable properties and could be applied not just in conventional implementations but also in off-grid solutions together with roadway energy harvesting systems. Both approaches require proper transfer of energy metering methods. In this paper, a method for measuring the power transferred to the load in a wireless charging system is presented, and its systematic error is assessed in the relevant range of influencing factors. The novelty of the method is that it does not require any metrologically certified measurement instrumentation on the receiver side of the wireless charging system. The error analysis is performed using a numerical simulation. Considered error-influencing factors included secondary side electrical load, coils' coupling coefficient and quality factor, current and voltage quantization resolution, and compensation topology type (serial-serial (SS) and serial-parallel (SP)). It was determined that the systematic error of the power assessment does not exceed 0.7% for SS and 1.1% for SP topologies when the coupling coefficient is in the range of 0.05 to 0.4 and the quality factor of the resonant system is in the range of 100 to 800.

Optimal wireless power transfer to hybrid energy storage system for electric vehicles: A comparative analysis of machine learning-based model-free controllers

Wireless charging technology for electric vehicles (EVs) is gaining popularity as a result of advancements in battery technology and government incentives. It offers convenience, efficiency, and safety, and is much quicker than traditional plug-in charging. However, optimal power transfer in a wireless power transfer (WPT) system remains a challenge. To design an effective control system for a hybrid energy storage system (HESS), it is important to have an accurate and reliable model of the system. But still, no model can fully represent the nonlinearity of the system. So model-free controllers are designed to operate without an explicit model, using feedback from sensors to adjust the control inputs. This article presents an LCC series-series network-based WPT-HESS model, supported by literature. The HESS system consists of a supercapacitor (SC) and a battery connected to the WPT system through a bidirectional DC–DC buck-boost converter. Three types of machine learning-based model-free controllers, i.e., an artificial neural network controller, a fuzzy logic controller, and a reinforcement learning-based deep Q-network controller, are designed for the HESS DC–DC converters aimed at tracking optimal power. During charging, the supercapacitor is given priority due to its faster charging time, and current references are generated based on the state-of-charge (SoC) of the supercapacitor and battery. The proposed controllers for WPT-HESS are simulated in MATLAB/Simulink and hardware validation is carried out by doing a hardware-in-loop experiment with the C2000 Delfino™ and the MCU F28379D LaunchPad, which has a TMS320F28379D dual-core CPU and runs at 200 MHz.

Research and overview of wireless charging technology for electric vehicle

In recent years, in order to effectively reduce energy consumption, the development of electric vehicles has gained the attention of many countries. The wireless charging system of electric vehicles does not have exposed wires and connectors,meanwhile it can realize the indirect electrical power transmission between the grid and electric vehicles, it has gradually become an important direction of current research. This paper introduces the background of wireless charging technology in various countries, lists out the two types of wireless power transfer technology, and explains the current technology based on the principle of wireless charging for electric vehicles. Today's wireless charging technology is divided into near-field radiation power transfer and far-field radiation power transfer. The charging mode can be divided into dynamic charging and static charging. This paper illustrates the topology of compensation network used to adjust the frequency of the electromagnetic coupled resonant wireless charging system, and introduces the process of transmitting the grid voltage to the battery of electric vehicle through the inverter circuit and rectifying circuit. Finally, it analyzes the defects of current wireless charging technology and puts forward personal views for its solutions. Through the research, hope to provide some reference for the development of wireless charging technology for electric vehicles.

The state-of-the-art wireless power transmission technology in electric vehicles

Since the 21st century, people have been paying attention to energy and environmental protection issues, and the world is accelerating the development and promotion of new energy vehicles. At present, the mainstream charging method of new energy vehicles is wired charging, but this charging method has certain safety hazards. So using wireless charging technology can effectively make up for this shortcoming. This paper starts with the development history of wireless charging technology, and expounds the birth and development of wireless charging technology. Then three common wireless charging technologies are introduced. This article will introduce the three wireless charging technologies from their principle, topology and advantages and disadvantages. Secondly, by comparing the three wireless charging technologies, it is concluded that IPT technology is the most mature and widely used technology at present, at the same time, CPT technology is also promising. Finally, the technical challenges and development prospects of wireless charging technology are discussed.

Double Coupling In-Wheel IPT System for Electric Vehicles

The electric automotive industry revolutionizes the transportation sector with new disruptive technologies like wireless charging systems and the tire industry is no exception. New airless and sustainable tire designs offer new possibilities to embody wireless charging technologies. This paper presents a novel in-Wheel Inductive Power Transfer (inWIPT) batteries charger design for electric vehicles (EV). The proposed system uses two magnetic couplers (MC) to transfer the energy: one from the off-board side to the wheel and another from the wheel to the on-board side. The proposed configuration keeps the air gap between the off-board transmitter pad and the wheel receiver to a minimum and almost independent of the vehicle type (Sedan, Suv, Truck). The two MCs are connected by a new resonant tank which modifies the voltage transfer characteristics. A step by step methodology that identifies the operational range of the mutual inductances, based on certain design specifications and constraints, is also presented. Experimental results validate the proposed inWIPT in a quasi load independent voltage operation in different coupling charging scenarios and a maximum output power of 2.6 kW with an efficiency of 89.3 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\%$</tex-math></inline-formula> .

A review of electric vehicle wireless charging technology research

With an increasing focus on environmental protection and sustainability, electric vehicles have become the mainstream trend for future automotive development. However, the development of electric vehicles has been limited by the bottleneck of charging technology. As a result, wireless charging technology for electric vehicles is viewed as an important solution, featuring high efficiency, high power density, and low cost. Specifically, three-phase wireless charging technology offers superior advantages such as high power density, low magnetic field leakage, and high coupling tolerance, making it the major trend for future development. This paper provides an overview of wireless charging technology for electric vehicles, while highlighting the benefits of three-phase technology over single-phase alternatives.

Development of charging technology for new energy vehicles

In the context of a global energy shortage, new energy vehicles are gradually becoming the mainstream trend of future automotive development. The development of fast and safe charging methods will bring a better experience to new energy vehicle users and gradually solve the problem of mileage anxiety for new energy vehicle users. At present, the main charging method of new energy vehicles is wired charging, but this charging mode charging time is slow and due to the external influence of the charging environment, causing the battery to overcharge the cars spontaneous combustion phenomenon, the application of wireless charging and power exchange technology to the future charging technology, wireless charging can bring higher charging efficiency and power exchange technology can bring similar to the fuel car replenishment energy experience. This paper first introduces the meaning of the three charging technologies and analyses their advantages and disadvantages. The three charging methods are described separately for wireless charging technology and compared with each other to arrive at the most suitable for future development. By comparing these three charging technologies, it can be seen that wireless charging technology is more suitable for the development trend of unopened new energy vehicle charging technology, and finally, the difficulties that need to be overcome for the future development of wireless charging are briefly described. This paper has important implications for developing new energy vehicle charging technology and popularizing the use of new energy vehicles.