By: Yassin Al Kafri
Electric vehicles are the future of automobiles. Dynamic wireless power transfer (DWPT) is a technology currently under development that allows wireless charging of electric vehicles. As Govind P. Gupta proposed, this technology is more efficient than the current one: wire charging at electric stations (Balas et al., 2019). Following a brief description of how dynamic wireless power transfer technology functions, this article will examine its advantages, disadvantages, and limitations.
How Does DWPT Function?
High-frequency inverters with a coil attached underground send a frequency to another coil in the car. This frequency is then inverted from AC to DC with the help of a converter (Mahesh et al., 2022).
Electric wireless charging paths represent an innovative solution for quick charging. The main problem with current electric stations is the duration it takes for vehicles to charge, which affects the availability of charging stations. To solve this issue, DWPT technology suggests charging moving cars with grid-connected charging stations that will wirelessly charge any moving vehicle (Wang et al., 2021). The cars will have built-in frequency receivers that allow the vehicle to receive the frequency provided by the path.
The Advantages of DWPT
Dynamic wireless power transfer has many advantages. DWPT allows for more efficient charging of vehicles along with reduced battery size (Agrawal, 2021). This, in turn, reduces the vehicle’s weight and improves its speed and efficiency. Charging through DWPT is significantly dependent on the areas where the paths are built. The speed of the cars and the amount of traffic on roads play a tremendous role in charging the vehicles.
In addition, dynamic wireless power transfer could optimize and develop public transportation to reduce the cost and increase the efficiency of bus systems worldwide. By using DWPT paths, bus systems with organized schedules could ensure that buses are always charged and at a low cost (Jin et al., 2021).
The main advantage of dynamic wireless power transfer is that it will benefit all types of vehicles regardless of whether they operate for public or private purposes. Overall, DWPT could enable electric cars to be more efficient and last longer, allowing them to go on longer trips than electric cars currently do. This initiative will benefit public transportation and the day-to-day use of private vehicles. It also reduces battery weight and increases speed.
However, it is necessary to consider the costs of manufacturing the vehicles and roads needed to implement dynamic wireless power transfer technology. One must also consider the efficiency of this technology in unfavorable weather conditions.
Disadvantages and Limitations of DWPT
Every new technology that emerges comes with some limitations and concerns that must be solved and improved before it is efficient enough to be used by the public. One of this new technology’s main concerns is the magnetic fields radiated by the charging paths. These radiations could interfere with radiofrequency and interrupt it (Uno et al., 2021).
As established in (Uno et al., 2021), some countries have laws to prevent the creation of wireless charging paths that could interfere with the frequency of radios. Although DWPT technology could be cost-effective in the long term (Machura & Li, 2019), building the system and new cars is very costly. The building of DWPT will have to consider any laws against it and find a solution to that issue before manufacturing begins.
Dynamic wireless power transfer technology has limitations that may impede its production and implementation. DWPT technology does not take into consideration unfavorable weather conditions. Subsequent improvements to DWPT technology must consider the influence of unfavorable weather.
Finally, DWPT is a new technology that still faces some obstacles as it is being developed, which may lead to more limitations and disadvantages. While DWPT technology could be very efficient in countries with stable weather conditions, the radiations of paths could cause a problem as they interfere with the radiofrequency of cars on the path.
Conclusion
In conclusion, this article discusses the importance of dynamic wireless power transfer as the future of technology. This article examined the functioning of DWPT technology. This technology has several advantages, such as increased vehicle efficiency and speed, improved charging efficiency, and reduced battery size. Moreover, DWPT benefits both the private and public sectors, emphasizing its benefits to public transportation systems. Regardless, there are still some issues and concerns, including radio frequency interference, bad weather conditions, and specific laws and regulations that DWPT technology will need to consider before implementation.
References
Agrawal., R. (2021). Advances in Smart Communication and Imaging Systems (pp. 388-394). Springer Singapore.
Balas, V., Sharma, N., & Chakrabarti, A. (2019). Data management, analytics and innovation (1st ed., pp. 654-662). Singapore: Springer Nature Singapore Pte Ltd.
Jin, Y., Xu, J., Wu, S., Xu, L., & Yang, D. (2021). Enabling the Wireless Charging via Bus Network: Route Scheduling for Electric Vehicles. IEEE Transactions On Intelligent Transportation Systems, 22(3), 1827-1839. https://doi.org/10.1109/tits.2020.3023695
Machura, P., & Li, Q. (2019). A critical review on wireless charging for electric vehicles. Renewable And Sustainable Energy Reviews, 104, 209-234. https://doi.org/10.1016/j.rser.2019.01.027
Mahesh, A., Pratik, U., Jovicic, A., Hasan, N., & Pantic, Z. (2022). Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review. Ieeexplore.ieee.org. Retrieved 26 February 2022, from https://ieeexplore.ieee.org/document/9552904
Uno, H., Ogawa, K., Shijo, T., Kanekiyo, Y., Ogura, K., Obayashi, S., & Ishida, M. (2021). EMI Reduction Techniques from 100 kW Wireless Charging Systems for Heavy-Duty Vehicles. 2020 International Symposium On Antennas And Propagation (ISAP). https://doi.org/10.23919/isap47053.2021.9391312
Wang, H., Pratik, U., Jovicic, A., Hasan, N., & Pantic, Z. (2021). Dynamic Wireless Charging of Medium Power and Speed Electric Vehicles. IEEE Transactions On Vehicular Technology, 70(12), 12552-12566. https://doi.org/10.1109/tvt.2021.3122366
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