SIMULATION-AND-HARDWARE-IMPLEMENTATION-ON-WIRELESS-CHARGING-SYSTEM.pptx

Wireless power transfer

1. NAMASTE EV CHARGING

2. FOR ELECTRIC VECHICLE SIMULATION AND HARDWARE IMPLEMENTATION ON WIRELESS CHARGING SYSTEM EV CHARGING

3. Project Supervisor Mohamed Badrudoza IOE, Pulchowk Campus Presented By: Apekshya Shakya (077BEL009) Bipin Prasad Devkota (077BEL019) Manish Bhattarai (077BEL023) Purushottam Thakur (077BEL030) A PRESENTATION FOR PROJECT-PROPOSAL DEFENCE ON SIMULATION AND HARDWARE IMPLEMENTATION ON WIRELESS CHARGING SYSTEM FOR ELECTRIC VECHICLE Department of Electrical Engineering Pulchowk Campus IOE

4. TABLE OF CONTENTS Introduction Literature Review Problem statement Objective Methodology Problems Encountered Result Conclusion Reference EV CHARGING

5. Introduction Wireless Power Transfer (WPT) is the technology by which one or multiple transmitters generate an electromagnetic wave, which is received by one or several receivers without any type of conductor in order to extract power from wave . There are many ways of power transfer and inductive power transfer is one of them. The power transfer is carried out with flux coupling between two coils therefore it’s also termed as inductive power transfer (IPT). An IPT system is able to work with relatively less voltage and current rated devices compared to other methods (e.g. capacitive, radiative) for the same amount of power transfer and in this way the responsible coils (primary and secondary) can carry high power. EV CHARGING 5

6. Introduction T his idea leads to a system where a vehicle can be charged contactless, convenient, clean and safe. The inductive power transfer consists of a pair of inductively coupled coils, one is primary coil or transmitting coil another is secondary or pickup coil. The transmitting coil is fixed and connected to the grid through required power converters and the pickup captures power inductively and delivers to the battery load. The main requirement of power supply to feed primary coil is high frequency (in kHz) for high efficiency in power transfer. In this system the inductive counterpart is pickup or receiving coil which is placed at the vehicle chassis. EV CHARGING 6

7. Literature Review Recently, many literatures have been published regarding wireless charging systems in electric vehicle and their contribution in coil designing providing significant influence on system efficiency. The followings are some published literatures related to wireless EV charging systems: A new wireless charging system for electric vehicles using two receiver coils [1] . This paper has presented a novel method to improve the performance of the dynamic wireless recharge system by adding receiver coils to measure source-to-vehicle power transmission confirming the validity of the simulation results. Wireless Electric Vehicle Charging System (WEVCS) [2]. This paper has presented the description of the types of WCS and types of EV wireless charging systems such as capacitive, permanent magnetic gear, inductive and resonant inductive wireless charging systems.   Wireless charging systems for electric vehicles, Renewable and Sustainable Energy Reviews [3]. This paper has presented the fundamentals of WPT for EV chargers containing MATLAB and Simulink files to understand the particularities of the technology and even design their own EV wireless charger.   EV CHARGING 7

8. Literature Review Review of Electric Vehicle Technologies, Charging Methods, Standards and Optimization Techniques [7]. This paper has presented EV charging methods such as Battery Swap Station (BSS), Wireless Power Transfer (WPT), and Conductive Charging (CC) and analysis for sizing and placement of EV charging stations.   Charging the Future: Challenges and Opportunities for Electric Vehicle Adoption [8]. This paper has presented modeling different types of charging infrastructure and comparing their costs of charging infrastructure on installation, utility service, transformers, and equipment.   Wireless charging technologies for electric vehicles: Inductive, capacitive, and magnetic gear [9]. This paper has presented a review of the three key wireless charging technologies . For inductive and capacitive technologies, their working principle, architectures, topologies, advantages, and challenges analyzing the concept of mixed wireless power transfer, which combines inductive and capacitive charging systems. EV CHARGING 8

9. Literature Review A New Integration Method for an Electric Vehicle Wireless Charging System Using LCC Compensation Topology: Analysis and Design [10]. This paper has presented integration method for wireless charging system to optimize the integrated coils, and detailed design procedures on improving system efficiency. Wireless Charger for Electric Vehicles with Electromagnetic Coil Based Position Correction [11]. This paper has presented a vertically mounted compact dual-coil charging pad for reduced airgap and coil misalignment. Also, a position-correcting control algorithm that detects the system impedance and resonant frequency. Similarly, there are various applications of wireless EV charging systems in which power is taken from the grid to be converted into DC Source and into the high frequency AC signal forming compensation network to increase the power quantity received for fast dc charging system. In this project, it proposed to design an adaptor without connectors or cables in acceptable power transfer efficiency with a relevant gap. EV CHARGING 9

10. Problem Statement Improperly handled plugs or cables in the EV can lead to electric shocks, tripping hazards, or potential hazards to the EV charging port. Plugging in and unplugging the charging cable can be physically demanding, especially for individuals with disabilities, elderly people, or in harsh weather conditions. It can also be hard to manage if the charging port and station are not conveniently aligned. Different EV manufactures use different types of plug types and standards (e.g., CCS, CHAdeMO, Tesla Supercharger) which leads to compatibility issues. That is why multiple adapters are required to be designed to meet this requirement. EV CHARGING 10

11. Objectives To eliminate the use of the plug and adopter which are use in the wired charging. To eliminate the risk of the short circuit during plugging To facilitate the EV charging safely during the adverse weather condition. To extend situation in which EV can be charged while moving or stationary for a short period. This will lead EV Battery size can be smaller. EV CHARGING 11

12. Methodology The methodology is completed in mainly 2 steps. They are listed below: Phase 1: Simulation Implementation The various steps involved here are given below: Requirement Specifications Possible setup Design of the Power Converters Design of the Control Algorithms Software Tests Phase 2: Hardware Implementation EV CHARGING 12

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16. Hardware Implementation Primary and Secondary coils Primary and secondary compensation networks Transmitter side rectifier Inverter Gate driving circuit Voltage controlled oscillator and DC supply circuit Receiver side rectifier EV CHARGING 16

17. NAME OF THE HARDWARE COST TRANSFORMER (2) 750*2 RECTIFIER CIRCUIT (2) 500*2 POWER INVERTER 2000 COMPENSATION NETWORK CIRCUIT (2) 500*2 TRANSMITTER AND RECEIVER coil 3000 SIMPLE INVERTER 1500 CONTROLLER (2) 3000 BATTERY 2500 Connector 1000 Car parts 1000 Total Amount 17500 EV CHARGING 17

18. Expected Result With this purposed system the problems like inconvenience of plug-in cables, the need for charging infrastructure can be eliminated completely. To offer convenience and safety benefits, reduce tripping hazards. The purposed system is expected to boost overall demand in the wireless EV market in Nepal EV CHARGING 18

19. Reference [1] N. Mohamed , F. Aymen , M. Alqarni , R. A. Turky , Basem Alamri , Ziad M. Ali et. al “A new wireless charging system for electric vehicles using two receiver coils” https ://doi.org/10.1016/j.asej.2021.08.012   [2] K. Momidi , “Wireless Electric Vehicle Charging System (WEVCS)”. July 12, 2019, https://circuitdigest.com/article/wireless-electric-vehicle-charging-systems [3] A. T. Cabrera, J. M. González-González, J. A. Aguado “Wireless Power Transfer for Electric Vehicles: Foundations and Design Approach”  [4] M. Amjad, M. Farooq- i - Azam,N . Qiang , M. Dong, E. A. Ansari, “Wireless charging systems for electric vehicles, Renewable and Sustainable Energy Reviews, Volume 167, 2022, 112730 https://authors.elsevier.com/a/1fNaj4s9Hw62gk EV CHARGING 19

20. Reference [5] EV charging summit, “Everything You Need to Know About Wireless EV Charging” Everything You Need to Know About Wireless EV Charging - EV Charging Summit Blog   [6] WiTricity Corporation,” Witricity Wireless EV Charging” WiTricity • Wireless EV Charging [7] S. M.Arif , T. T. Lie, B. C. Seet , S. Ayyadi and K. Jensen, “Review of Electric Vehicle Technologies, Charging Methods, Standards and Optimization Techniques”. Electronics 2021, 10, 1910. https://doi.org/ 10.3390/electronics10161910   [8] H. Lee, A. Clark, “Charging the Future: Challenges and Opportunities for Electric Vehicle Adoption” Belfer Center for Science and International Affairs, Cambridge, Mass: Harvard University, August 2018 www.belfercenter.org/ENRP   [9] A. A. S. Mohamed , A. A. Shaier , H. Metwally , S. I. Selem , “Wireless charging technologies for electric vehicles: Inductive, capacitive, and magnetic gear”, Wireless charging technologies for electric vehicles: Inductive, capacitive, and magnetic gear - Mohamed - IET Power Electronics - Wiley Online Library EV CHARGING 20

21. Reference [10] T. Kan, T. D. Nguyen, J. C. White, R. K. Malhan , C. C. Mi, Fellow, et. al “A New Integration Method for an Electric Vehicle Wireless Charging System Using LCC Compensation Topology: Analysis and Design [11] N. A. Khan, “Wireless Charger for Electric Vehicles with Electromagnetic Coil Based Position Correction” Master of Applied Science Graduate Department of Electrical and Computer Engineering University of Toronto, 2019. [12] H. K. Dashora , “Dynamic Wireless Charging of Electric Vehicle” University Centre of Studies and Activities for Space, University of Padova, Italy, 2021 EV CHARGING 21

22. THANK YOU!! EV CHARGING 22