Charging Automation for Electric Vehicles: Is a Smaller Battery Good for the Wireless Charging Electric Vehicles?

Jeong, Sangbae; Jang, Young Jae; Kum, Dongsuk; Lee, Min Seok

doi:10.1109/tase.2018.2827954

Cited by 73 publications

(28 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, the change in SoC of the battery pack while driving is reduced, and the total on-board battery capacity can be reduced [272], [273]. This leads to a significant reduction in initial cost of EVs [274], [275]. On the other hand, to support the reduced storage capacity DWPT systems need to be deployed at a large scale.…”

Section: Costs Of Wptmentioning

confidence: 99%

A critical review on wireless charging for electric vehicles

Machura

2019

Renewable and Sustainable Energy Reviews

207

View full text Add to dashboard Cite

Electric vehicles (EVs) have recently been significantly developed in terms of both performance and 10 drive range. There already are various models commercially available, and the number of EVs on road 11 increases rapidly. Although most existing EVs are charged by electric cables, companies like Tesla, 12 BMW and Nissan have started to develop wireless charged EVs that don't require bulky cables. 13 Rather than physical cable connection, the wireless (inductive) link effectively avoids sparking over 14 plugging/unplugging. Furthermore, wireless charging opens new possibilities for dynamic chargingcharging while driving. Once realised, EVs will no longer be limited by their electric drive range and the requirement for battery capacity will be greatly reduced. This has been prioritised and promoted worldwide, particularly in UK, Germany and Korea. This paper presents a thorough literature review on the wireless charging technology for EVs. The key technical components of wireless charging are summarised and compared, such as compensation topologies, coil design and communication. To enhance the charging power, an innovative approach towards the use of superconducting material in coil designs is investigated and their potential impact on wireless charging is discussed. In addition, health and safety concerns about wireless charging are addressed, as well as their relevant standards. Economically, the costs of a wide range of wireless charging systems has also been summarised and compared.

show abstract

Section: Costs Of Wptmentioning

confidence: 99%

A critical review on wireless charging for electric vehicles

Machura

2019

Renewable and Sustainable Energy Reviews

207

View full text Add to dashboard Cite

show abstract

“…According to (10), it is possible to calculate φ, Pout, and η. The output power of the AC part of the circuit is obtained as (12). According to (5), ( 6), ( 10), (11), and ( 12), efficiency η can be calculated as (13).…”

Section: Ipt System Modeling and Formulationsmentioning

confidence: 99%

“…In addition to electric shock risks reduction and ease of use for the disabled or the elderly, WPT makes it possible to charge EVs on the go, which is called dynamic wireless charging (DWC) [9][10][11]. With DWC realization, the range anxiety problem could be eliminated [12,13].…”

Section: Introductionmentioning

confidence: 99%

Design and Sensitivity Analysis of Dynamic Wireless Chargers for Efficient Energy Transfer

et al. 2021

View full text Add to dashboard Cite

Tunable Self-Oscillating Switching (TSOS) methods are a robust solution for tuning of Inductive Power Transfer (IPT) systems. However, they require deep analysis to be an appropriate choice for Dynamic Wireless Charging (DWC) systems. In this paper, the optimal operation point of TSOS in the maximum power transfer, efficiency, and Zero Voltage Switching (ZVS) realization perspectives are determined based on sensitivity analysis for DWC of Electric Vehicles (EVs). In the sensitivity analysis, all the possible states of the coupling factor and state of charge (SOC) are considered as system variables. Moreover, a new phasor modeling for constant voltage (battery) loads is proposed. The performance of this model is quite different from the conventional static model for the loads. Moreover, to limit the current of the charger under light couplings, a simple hysteresis controller is employed. A setpoint is proposed based on the sensitivity analysis method to transfer maximum energy in misaligned conditions. The proposed setpoint increases transferred energy and energy efficiency while limits the current of the charger. To analyze this method, simulation is done in the Simulink/MATLAB, and to verify the results, a laboratory prototype is implemented.

show abstract

“…Similarly, here, the load is the vehicle which is in motion. A metal plate named power track [51] is laid on the road which has coils beneath it. The power track is connected to an inverter which turns ON only when a vehicle passes over it.…”

Section: Future Trendsmentioning

confidence: 99%

Overview of Electric Vehicle: Opportunities and Challenges with Smart Grid

Gupta

Saurav

et al. 2020

Lecture Notes in Electrical Engineering

View full text Add to dashboard Cite

EV uses electricity as a fuel and converts it into kinetic energy, which is required for running the vehicle. The electricity can be extracted either from a battery or renewable sources of energy. EV has many advantages such as high performance, high response, no noise, low maintenance and driving cost, highly safe, and there is no need of fuel tanks, carburetor, and smog controllers in them. EVs are not new, although they were around us since the 1800 s. At that time out of 4200 vehicles, 38% were EVs but due to low cost gasoline fuel, evolution, and development of electric starter for gasoline engine, the interest in EV declined. Gasoline vehicles are easy to operate due to electric starter which curb the need for hand crank for starting the engine and due to which most of the electric car manufacturer stopped their production [1]. EV has come into limelight due to the problem of environmental hazards related to the conventional vehicle. The first ever made EV was developed by 'Anyos Jedlik' in 1828. In early 1980s, EV activity again rose but with the development of plug-in hybrid EV (PHEV) and hybrid electric vehicles (HEV), the interest in pure EV again decline. In 2003, T (an automobile company) launched its first pure EV "Tesla roadster." Tesla overcome all the challenges of EV such as they use lithium-ion battery to power the vehicles, and the problem of short range is also overcome to some extent. Some issues related to EV development are: profit determination becomes uncertain considering the high capital cost and uncertainties in policies related to EV production. The government has made various comments about their thoughts for EV but nothing has been put down to policies. This discourages the investment industries. Cost of the EV is also an issue of concern [2]. There is a need for lowering the operating cost of the EVs by optimal usage of the renewable energy resource with the help of a microgrid. A

show abstract

Charging Automation for Electric Vehicles: Is a Smaller Battery Good for the Wireless Charging Electric Vehicles?

Cited by 73 publications

References 23 publications

A critical review on wireless charging for electric vehicles

A critical review on wireless charging for electric vehicles

Design and Sensitivity Analysis of Dynamic Wireless Chargers for Efficient Energy Transfer

Overview of Electric Vehicle: Opportunities and Challenges with Smart Grid

Contact Info

Product

Resources

About