Safety and Reliability of Wireless Charging System for Electric Vehicles Based on the Yunnan Power Grid

2014 ◽  
Vol 518 ◽  
pp. 324-328 ◽  
Author(s):  
Hong Liang Wang ◽  
Juan Liu ◽  
Min Cao ◽  
Xian Fu Chen ◽  
Da Da Wang ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Large Scale ◽  
Power Transmission ◽  
Power Grid ◽  
Wireless Charging ◽  
Wireless Power ◽  
Gradual Improvement ◽  
Electric Cars ◽  
Huge Impact ◽  
Battery Technology

Electric cars are emerged as the energy crisis and environmental problems have become more severe. Electric vehicles charging include contact and non-contact. The battery technology has not been solved absolutely for Contactless charging, in addition, charging pile construction will take up a lot of urban land, normal charge is slow, fast charge will have a huge impact to grid, the high cost of change the batteries, these drawbacks of electric vehicles has been hampered the large-scale development of EV. With the development and gradual improvement of wireless power transmission technology .wireless charging technology applied to electric vehicles has great prospects. In the wireless power charging process safe, reliable transmission is very important. In this paper, security and reliability problems have been discussed for the various aspects of wireless charging systems and combined analysis of the characteristics of Yunnan Power Grid for wireless charging systems of electric vehicles.

Wireless Charging System for Electric Vehicles

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
K. Paramesh ◽  
R.P. Neriya ◽  
M.V. Kumar
Keyword(s):  
Electric Vehicles ◽  
Power Transmission ◽  
Wireless Transmission ◽  
Electric Load ◽  
Wireless Charging ◽  
Electrical Load ◽  
Wireless Power ◽  
Charging System ◽  
Electrical Devices ◽  
Resonance Coupling

Wireless power transmission (WPT) is popular and gaining technology finding its application in various fields. The power is transferred from a source to an electrical load without the need of interconnections. WPT is useful to power electrical devices where physical wiring is not possible or inconvenient. The technology uses the principle of mutual inductance. One of the future applications finds in automotive sector especially in Electric Vehicles. This paper deals with research and development of wireless charging systems for Electric vehicles using wireless transmission. The main goal is to transmit power using resonance coupling and to build the charging systems. The systems deal with an AC source, transmission coil, reception coil, converter and electric load which are battery.

scholarly journals Advancements in Battery Technologies of Electric Vehicle

2021 ◽  
Vol 2129 (1) ◽  
pp. 012011
Author(s):  
V.K Bupesh Raja ◽  
Ignatius Raja ◽  
Rahul Kavvampally
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Automobile Industry ◽  
Combustion Engine ◽  
Maximum Energy ◽  
Electric Cars ◽  
Alternative Materials ◽  
Tremendous Amount ◽  
Battery Technology ◽  
Compact Design

Abstract The Automotive Industry has undergone a huge revolution – Electric Vehicles! Electric cars are growing fast and the demand for them is increasing all around the world, thanks to the more and improved choice, reduced prices, and enhancing battery technology. Introduced more than 100 years ago, electric vehicles have gone through a tremendous amount of advancement. This paper reviews the current major challenges faced by the Electric Vehicle Industry along with possible solutions to overcome them. Although electric vehicles have come a long way, the battery used in the vehicles needs to be further explored to harness maximum energy with a compact design. Electric vehicles should soon be able to compete with combustion engine vehicles in every aspect. Also, this paper reviews alternative materials for electrodes and batteries to make charging faster and reliable than ever. This paper envisages few concepts that could revolutionize Automobile Industry further in the future.

scholarly journals Innovative management of projects for electric mobility development: foreign experience and Ukraine

2020 ◽  
pp. 26-29
Author(s):  
Serhii KHARIN ◽  
Hanna PURII
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Large Scale ◽  
Specific Weight ◽  
Electric Mobility ◽  
Scale Production ◽  
Total Production ◽  
Electric Cars ◽  
Foreign Countries ◽  
Vehicle Production

The research considers various aspects of electric vehicle production in some leading foreign countries. Dynamics of specific weight of electric vehicles in total transport and its forecast indices are under analysis considering those of the countries planning complete transition to electric mobility. Urgency of building an expanded network of charging stations of various capacity is pointed out. It is revealed that Volkswagen, the world largest automobile concern, is going to introduce much more new designs of electric vehicles than it considered before – 70 instead of 50 by 2028. It is planned to produce more electric vehicles – from 15 to 22mln in the decade to follow. Besides, the share of electric vehicles in the concern’s total production is to exceed 40% by 2030. It is indicated that 44bln euros will be invested into designing new VW automobiles in the nearest 5 years. It is significant that in many foreign countries there are subsidies and tax reduction for electric vehicle owners which are used as an important tool of the state’ incentives. Besides, special attention is paid to improvement and development of production of batteries for electric cars, especially in the EU countries. The authors suggest schemes of elaborating electric mobile innovations and power supply for electric mobility providing green and economic solutions for generating power for electric cars by wind generators. Potential production of Ukrainian electric cars is under analysis. It is highlighted that electric vehicle production allows combining two economically beneficial factors – innovative character of a product and its large-scale production. In this case, there will be a novelty effect and huge unsatisfied demand as well as scale saving.

scholarly journals Wireless Charging of Electrical Vehicle on Road

2021 ◽  
pp. 270-276
Author(s):  
Mr. Suraj Hussainsaheb Mulla ◽  
Mr. Vipul Uddhav Hawale ◽  
Mr. Pradeep Ramrao More ◽  
Mr. Kiran Joy Mandumpal ◽  
Prof. Supriya Shigwan
Keyword(s):  
Electric Vehicles ◽  
Storage System ◽  
Selection Criterion ◽  
Wireless Power Transfer ◽  
Antenna System ◽  
Prototype System ◽  
Wireless Charging ◽  
Power Transfer ◽  
Wireless Power ◽  
Vehicle Charging

Electric vehicles are seen as an alternative option in response to the depletion of resources. In order to increase the use of EVs in daily life, practical and reliable methods to charge batteries of EVs are quite important, accordingly wireless power transfer (WPT) is considered as a solution to charge batteries. In this project, a prototype system of wireless charger which has 60 kHz operation frequency is designed and implemented. Plug-in Electric Vehicles (PEV) are burdened by the need for cable and plug charger, galvanic isolation of the on-board electronics, bulk and cost of this charger and the large energy storage system (ESS) packs needed. But by using Wireless Charging system‘s Wireless charging opportunity. It Provides convenience to the customer, inherent electrical isolation, regulation done on grid side and reduces on-board ESS size using dynamic on-road charging. The main objective of our project is to design and develop an antenna system suitable for vehicle using resonant magnetic coupled wireless power transfer technology to electric vehicle charging systems. Application of WPT in EVs provides a clean, convenient and safe operation. At the core of the WPT systems are primary and secondary coils. These coils construct a loosely coupled system where the coupling coefficient is between 0.1-0.5. In order to transfer the rated power, both sides have to be tuned by resonant capacitors. The operating frequency is a key selection criterion for all applications and it especially affects the dimensions of the coils and the selection of the components for the power electronic circuit. A Resonant wireless transfer system for vehicle charging technology is designed.

The Research of Microgrid Optimized Dispatching Method Based on MEA

2014 ◽  
Vol 494-495 ◽  
pp. 1841-1844
Author(s):  
Bao Yi Wang ◽  
Chen Wei ◽  
Shao Min Zhang
Keyword(s):  
Large Scale ◽  
Scheduling Algorithm ◽  
Power Grid ◽  
Renewable Energy Sources ◽  
Energy Resource ◽  
Mixed Integer ◽  
Programming Algorithm ◽  
Storage Element ◽  
Electric Cars ◽  
Operation Control

Integration of large scale renewable energy sources and electric cars into power grid will bring new opportunities and challenges to the operation, control of the power grid and the power market .The microgrid , which integration the distributed generation systems, energy storage element and loads ,has been seen as one effective way to solve the problems. This paper proposed a MEA-based scheduling algorithm, and studied a microgrid that contains 32 nodes and 50 electric cars. Both the MEA algorithm and mixed integer nonlinear programming algorithm (MINLP) can solve the energy resource scheduling problem,but the results of our simulation shows that the total cost of MEA is higher than that of the MINLP,but there is a significant improvement in the efficiency of execution.The results shows that we can use MEA to achieve optimal scheduling,it also verify the effectiveness of the algorithm.

Study on Power Transmission Plan of the Nuclear Power Base in Shandong Peninsula

2016 ◽  
Author(s):  
Chengzhu Yin ◽  
Miao Wang
Keyword(s):  
Power Plant ◽  
Nuclear Power ◽  
Large Scale ◽  
Power Transmission ◽  
Short Circuit ◽  
Power Grid ◽  
Short Circuit Current ◽  
Jiaodong Peninsula ◽  
Power Load ◽  
Power Base

The nuclear power site resource is very rich in Jiaodong Peninsula of Shandong Province. It is suitable for construction of the large nuclear power base. The transmission scope and direction of Jiaodong Peninsula nuclear power base is analyzed, and optional transmission plans of Plant 1, Plant 2, Plant 3 and Plant 4 are proposed. The transmission plans are recommended based on technical and economic comparison, which provide good references for construction of the large-scale nuclear power base and power grid development planning. Jiaodong Peninsula nuclear power base is planned to be built in the year of 2016–2030, planning capacity of which is 30500MW. The site of nuclear power base is 100∼400km away from the power load center. The nuclear power will use AC transmission and mainly meet the demand of local power load. The early 15500MW gensets will be accessed to the power grid at 500kV, as the following 15000MW gensets will be accessed at 1000kV UHV (Ultra-high voltage) grid. As the accessing of many large-capacity gensets will produce huge impact to the short-circuit current, sectionalized double-bus configuration is recommended in the 500kV main electrical wiring to reduce the short-circuit current of 500kV bus of nuclear power plant. Double bus section cross wire connection is presented to make sure that every two generators on each bus will be connected to different substations on two transmission lines which are set up on different poles and in different paths, to improve the reliability of the power plant. Through analysis and provement, the construction of large nuclear power base must be based on large and stronge power grid, especially the UHV (Ultra-high voltage) AC grid, to meet the demand of huge nuclear power transmission, and to improve the ability of power exchange and ensure the safety of regional power supply. Also, as the nuclear power plant should better be in base-load operation, the construction of large-scale nuclear power base, would make the system load-control demands increase, which leads to more prominent problems. In order to avoid adding additional depth of peaking power operation and reducing the overall economic operation of power system, power grid should have the necessary means to load-control. Namely the construction of peaking units, such as pumped storage units or gas-fired units at about 5000MW. By analyzing and demonstration, large-scale nuclear power base must rely on large-scale power grid, particularly the support of UHV power grid in order to meet the demond of large-scale power transmission and electricity exchange, and also to ensure regional security of electricity supply.

scholarly journals EXPERIMENTAL STUDY OF A TEST SAMPLE OF A WIRELESS POWER TRANSFER FOR ELECTRIC VEHICLES

2021 ◽  
Vol 2021 (5) ◽  
pp. 21-26
Author(s):  
V.B. Pavlov ◽  
◽  
O.D. Podoltsev ◽  
V.E. Pavlenko ◽  
◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Power Transmission ◽  
Experimental Studies ◽  
External Source ◽  
Test Sample ◽  
Outer Diameter ◽  
Storage Battery ◽  
Wireless Power ◽  
Inductive Type ◽  
Experimental Values

A prototype of a wireless charger of inductive type with serial resonance in the circuits of the transmitting and receiving coils has been developed and manufactured, and experimental studies of the efficiency of power transmission from an external source to a storage battery have been carried out. It is shown that the efficiency of the created sample takes values in the range 39% - 78 % and depends on the operating frequency and the distance between the coils. It is also shown that when using coils with an outer diameter of 500 mm, the positioning of these coils in the process of charging the battery at a distance of up to 10 cm does not lead to a significant decrease in efficiency. The experimental values of the efficiency are compared with the calculated ones obtained on a simplified model that takes into account only resistive losses in the coils, and it is shown that the experimental values of the efficiency are 15-20 % less than the calculated ones. References. 8, figures. 5, table 1.

Sign in / Sign up

Export Citation Format

Share Document