Figure 7 - uploaded by Lokesh Dutta
Content may be subject to copyright.
Source publication
Wireless power transmission is the way to transfer power without using wire. Wireless power transmission helps to connect those area where people are unable to get a suitable power source. Everyone can get clean and green wireless power. In future all the devices will relate to the power supply source wirelessly. In this paper we have presented the...
Contexts in source publication
Context 1
... consists of microwave transmitter which is used to convert power into microwave for transmission. According to Figure 7 transmitting microwave from the satellite present in space received by the microwave receiving antenna situated into the earth. This microwave receives antenna then convert microwave into electricity. ...
Context 2
... consists of microwave transmitter which is used to convert power into microwave for transmission. According to Figure 7 transmitting microwave from the satellite present in space received by the microwave receiving antenna situated into the earth. This microwave receives antenna then convert microwave into electricity. ...
Similar publications
Future energy-supply systems must become more flexible than they are today to accommodate the significant contributions expected from intermittent renewable power sources. Although numerous studies on planning flexibility options have emerged over the last few years, the uncertainties related to model-based studies have left the literature lacking...
Citations
... Solar power satellites enable wireless power transmission from orbit to Earth.124 ...
Wireless power transfer (WPT) is a promising technology that has the potential to revolutionize the present methods of power transmission. This paper aims to provide an overview of WPT, including its history, a comparative review of methods, and a review of recent papers about WPT. We discussed different methods of WPT, such as inductive power transmission, capacitive power transmission, optical power transmission, and microwave power transmission. The research briefly discusses the applications, challenges, and opportunities of WPT. The study's findings suggest that WPT can serve as a feasible substitute for traditional wired power transmission. This technology has the potential to offer several advantages, including enhanced convenience, decreased expenses, and heightened safety.
... As IoT devices continue to shrink, WPT may assist minimize system size and enable their deployment in locations where cable transmission is impractical [143]. In the future, a transmitter inside the home will transfer power to all household appliances and receive it via receiving devices in each appliance [142], [144]. EVs may be charged wirelessly [142], [144]. ...
... In the future, a transmitter inside the home will transfer power to all household appliances and receive it via receiving devices in each appliance [142], [144]. EVs may be charged wirelessly [142], [144]. To save fuel and reduce pollution, buses, trains, airplanes, UAVs, and AUVs can be powered wirelessly [144], [145]. ...
... EVs may be charged wirelessly [142], [144]. To save fuel and reduce pollution, buses, trains, airplanes, UAVs, and AUVs can be powered wirelessly [144], [145]. WPT may have a significant impact on the medical industry. ...
The global need for energy is increasing at a high rate and is expected to double or increase by 50%, according to some studies, in 30 years. As a result, it is essential to look into alternative methods of producing power. Solar photovoltaic (PV) power plants utilize the sun's clean energy, but they're not always dependable since they depend on weather patterns and requires vast amount of land. Space-based solar power (SBSP) has emerged as the potential solution to this issue. SBSP can provide 24/7 baseload carbon-free electricity with power density over 10 times greater than terrestrial alternatives while requiring far less land. Solar power is collected and converted in space to be sent back to Earth via Microwave or laser wirelessly and used as electricity. However, harnessing its full potential necessitates tackling substantial technological obstacles in wireless power transmission across extensive distances in order to efficiently send power to receivers on the ground. When it comes to achieving a net-zero goal, the SBSP is becoming more viable option. This paper presents a review of wireless power transmission systems and an overview of SBSP as a comprehensive system. To introduce the state-of-the-art information, the properties of the system and modern SBSP models along with application and spillover effects with regard to different sectors was examined. The challenges and risks are discussed to address the key barriers for successful project implementation. The technological obstacles stem from the fact that although most of the technology is already available none are actually efficient enough for deployment so with, private enterprises entering space race and more efficient system, the cost of the entire system that prevented this notion from happening is also decreasing. With incremental advances in key areas and sustained investment, SBSP integrated with other renewable could contribute significantly to cross-sector decarbonization.
... Compared with the conventional charging method, wireless power transfer (WPT) technology is garnering increasing a ention as a result of the discarding of the traditional wire bondage, making the charging power supply and charging equipment completely isolated, and be er solving the problems of exposed wires, easily produced contact sparks, and poor mobility that exist in wired electrical power transfer [1][2][3][4][5][6][7]. It has been widely employed in electric vehicles [8,9], medical equipment, portable electronic devices, aerospace applications, and ocean-related applications. ...
The eddy current loss caused by the conductivity of seawater results in a relatively low transfer efficiency of underwater wireless power transfer (WPT). And the transfer distance of the current WPT system is relatively short. Considering that most of the wireless power transfer devices in practical applications are asymmetric, few studies have explored the transfer characteristics of asymmetric midrange WPT in seawater. In this study, it is experimentally found that the load voltage and transfer efficiency of an asymmetric midrange WPT system with reduced primary balancing resistance in seawater are nearly twice as high as those of a symmetric one at a 50 cm transfer distance and a 410 kHz operation frequency with a 44.4 Ω load resistance. A new circuit model of the underwater WPT system with complex impedance and complex mutual inductance is then presented, and the load voltages predicted by the model are consistent highly with the experimental values; the model is then utilized for the explanation of the experimental observations. Changing the load resistance also improves the transfer efficiency of the system; however, the eddy current loss results in a relatively low transfer efficiency of 30.9% at an optimal load resistance of 90 Ω. The asymmetric midrange underwater WPT system can be applied in scenarios where the transfer distance is prioritized.
... Researchers have been working in the area of the Internet of Things (IoT) for a few years now. Wireless rechargeable sensor networks (WRSNs) play a key role in IoT-based applications such as healthcare [1], smart cities [2], and so on. In WRSNs, the battery power of sensor nodes (SNs) is limited which is regarded as a major issue in the practical implementation of these networks [3]. ...
Wireless rechargeable sensor networks (WRSNs) are broadly utilized in numerous areas. However, the limited battery capacity of sensor nodes (SNs) is considered as a critical issue. To extend the battery life of SNs, mobile chargers (MCs) equipped with wireless power transfer (WPT) technology have been proposed as a key solution for charging SNs. Using directional antennas to focus energy within a specific area, as opposed to an omnidirectional antenna, increases the energy efficiency of an MC. In this paper, we focus on the travel path charging scheduling problem with a directional MC in on-demand WRSNs. Our goals are to develop a mechanism to reduce the changing delay time and boost the energy efficiency of MC. In this case, the MC receives the charging requests of SNs and responds to them by selecting appropriate stopping points (SPs) and the charging orientation angles in each SP. We propose a mobile directional charging scheduling (MDCS) solution based on a deep reinforcement learning technique. The simulation results demonstrate the superior performance of our method to existing studies in terms of the energy consumption of the MC, the number of dead SNs, and charging delay time.
... In the past few years, the researchers have devoted significant efforts to the field of Internet of Things (IoT). One particular area of focus has been wireless rechargeable sensor networks (WRSNs), which play a crucial role in IoT applications such as healthcare and smart cities [1][2][3]. However, the implementation of these networks faces a major challenge in the form of limited battery power for the sensor nodes (SNs) due to their small size and limited battery capacity. ...
Wireless rechargeable sensor networks (WRSNs) are widely used in many fields. However, the limited battery capacity of sensor nodes (SNs) prevents its development. To extend the battery life of SNs, they can be charged by a mobile charger (MC) equipped with radio frequency-based wireless power transfer (WPT). The paper addressed the issue of optimizing route planning and charging based on an MC with directional charging in on-demand networks. A mixed integer linear programming model (MILP) is proposed to obtain the appropriate stopping points (SPs) and orientation charging angles to respond to input requests in the shortest possible time and with minimum energy consumption. First, to select the SPs and the orientation charging direction, we utilize a clustering and discretization technique while minimizing the number of SPs and maximizing the charging cover. Then, to decrease the charging time of the required SNs as well as the MC's energy consumption, we propose a heuristic search algorithm for adjusting the moving path for the directional mobile charger. Finally, experimental simulations are performed to evaluate the performance of the proposed directional charging scheduling algorithm, and the results reveal that the suggested approach outperforms existing studies in terms of MC energy consumption, charging delay, and distance traveled.
... Since Nicola Tesla's first attempt over a century ago, WPT has had a long history In a wireless charger, induction coils transmit and receive electrical current from the charger to the device. The fundamentals of WPT using inductive coupling, magnetic resonance, and radio frequency methods are discussed in this section, which serves as a background for the review literature [10][11][12][13][14][15]. ...
... Xie et al., [12] Sensor node batteries ...
Wireless charging systems have seen a rapid rise in medical devices, mobile sensing, consumer electronics, electric vehicles, and other applications due to their high operational flexibility. This paper aims at providing an in-depth systematic analysis of contemporary wireless charging and mobile sensor systems based on a comprehensive analysis of recent literature on the topic. The paper starts by describing the fundamental principles of wireless energy transfer, applications, and current challenges, followed by mathematical analysis, algorithms, simulation, and experimental results. Specifically, wireless power transfer (WPT) using inductive coupling, magnetic resonance, and radio frequency methods are studied to get a thorough understanding of the concepts. Compared to other similar studies, the focus is on healthcare and assisted living applications. The outcome of a thorough analysis of the relevant literature for a few chosen studies identified areas for improvement as well as new applications for the discipline [1-5].
... içermeyecek ve araba, tren gibi araçlardan yayılan gazlardan arındırılmış temiz ve akıllı şehirler mümkün olacaktır [10]. ...
This thesis was written for our Bachelor's Degree in the Department of Electronics and Communication Engineering at Istanbul Technical University.
Wireless power transfer (WPT) is a technology that is currently being used in many areas such as health, education, security and automotive sectors, and its usage areas are expected to increase in the future. Wireless power transmission technology is expected to be one of the key technologies that will contribute to the smart digital age by providing an easy, portable and secure power supply. In the applications of this technology, EMC problems related to wireless power transfer are also an important focus.
When considering wireless power transmission technologies and ways of working, the first and most important classification is based on how far power transmission is possible. Some WPT systems can transmit power wirelessly to very distant loads, while others aim to transmit power only to loads a few centimeters from the source. Near field wireless power transfer, or in other words Inductive Power Transfer (IPT), is a technology that provides energy transfer at close distances, usually between a few millimeters and a few centimeters, and is widely used with the Qi wireless charging standard. In addition, the Series-Serial compensated IPT systems used in this study are shown as the best compensated circuit for charging applications of electric vehicles.
Efficiency, distance between coils, transferred power, quality factor, coupling coefficient and misalignment tolerance are the most important parameters in wireless power transfer. Since each usage area has its own conditions and restrictions, different
coil structures are used in different application areas according to these performance indices. The optimal level of variables such as the distance between the coils and the operating frequency varies in different coil designs. In this study, circular, rectangular, square and circular spiral coil structures are discussed. In the systems designed using these different coil pairs, close field power transfer was aimed and analyzes based on the structure of the coils, the distance between the coils, the operating frequency and the number of turns of the receiver and transmitter coils were carried out. The distance between the coils was changed from 20 mm to 200 mm at intervals of twenty millimeters, and the change in the values of the mutual inductance and coupling
coefficient parameters was observed. According to the analyzes made by placing the coil pairs in the IPT circuits, it has been shown that the efficiency of the system generally decreases as the distance between the coils increases. This also confirms the principle that the transmission performance decreases in direct proportion to the distance between the power source and the receiver during the wireless transmission of energy.
In the analyzes made by placing the designed different coil pair structures in the seriesserial compensation circuit designed in the HFSS program, it was observed that the highest efficiency values in the three coil structures were between 90-95 kHz. This frequency range is a common range for inductive WPT systems and generally provides a suitable balance between power transfer and efficiency.
... There are many applications of Figure 1. Some applications of wireless power transfer systems (FH 2018) Wireless charging can be classified into static charging system such as electricity supply stations and parking lots, semi-static charging system such as a traffic lights, and dynamic charging system such as roads of charge by placing the main coils. The dynamic charging are usually rectangular under the ground, in special ways to address the problem of waiting at charging stations and reduce the size and number of batteries, which will reduce the cost and enjoy a long trip when using such ways. ...
Wireless Power Transfer (WPT) is a technology of transmitting electric, magnetic, optical, or microwave power without the use of physical connections. This technology is used to charge electric vehicles and other applications. It has several advantages over conductive charging method in terms of automation, safety in harsh environments, as well as reliability during environmental disasters. However, this technology faces challenges such as complex design, high cost, and sensitivity to misalignment and safety conditions for people. These challenges are associated with receiver and transmitter coils. This paper provides an overview of transmitter coil types, magnetic materials used, types of shields to provide safety for people, various pads structures, as well as the types of methods used to charge electric vehicles and electronic compensation circuits. This paper will be a reference for researchers and those interested in wireless power transfer to check these factors.
... Wireless power transmission (WPT) is an important technology to transmit energy remotely from a power source to an electrical apparatus [1]. WPT technology relies on electromagnetic radiation, such as microwaves and/or optical beams, to enable long-distance energy transfer. ...
To realize optical wireless power transmission, atmospheric propagation of eye-safe wavelength (1.57µm) laser beams was theoretically investigated. Laser beams are affected by the presence of water vapor and aerosols which absorb and scatter the laser energy. The scattering coefficients of water molecules and aerosols were estimated to be about 6.3 × 10-7 and 5.6 × 10-5 m-1 , respectively, at wavelength (λ 0) of 1.57µm. Furthermore, the absorption coefficients of moist air at 30% relative humidity and aerosols were estimated to be about 6.16 × 10-3 and 2.52 × 10-5 m-1 , respectively, at λ 0 = 1.57µm. Then simulation of laser beam propagation in the moist atmosphere at λ 0 = 1.57µm was performed using these coefficients. Under the condition of no wind, the beam intensity decreases rapidly with increasing the length z and the rate of decrease slows down as the beam radius (ω) increases. When z h is defined as the z where the normalized intensity is halved, the z h (= 25 m) at ω = 20 mm when input power P = 10 W is about three times longer than that (= 8 m) when P = 100 W. This result indicates that the thermal distortion of laser beams due to accumulated heat around the z axis becomes more conspicuous as the optical power increases. The effect of this thermal beam distortion can be weakened when the laser beam is subject to crosswinds. Under the condition of gentle uniform wind with wind velocity v = 5 m/s, propagation of laser beams with ω = 20 mm was studied when P = 100 W. The z h (= 105 m) when v = 5 m/s is about 13 times longer than that (= 8 m) when v = 0 m/s. Thus, under conditions of v = 5 m/s and 30% relative humidity, laser beams with P = 100 W and ω = 20 mm can propagate over 100 m without damaging the initial beam shape at λ 0 = 1.57µm.
... There are, of course, other types of batteries or rechargeable energy sources as well, such as fuel cells, ultracapacitors, microwaves and even solar cells, but none have seriously rivalled traditional aviation fuel in terms of Wh/ kg ( Kuperman & Aharon, 2011;Sumi, Dutta, & Sarker, 2018;H. Xu et al., 2018). ...
The aim of this chapter is to explore how infrastructure and travel within and between smart cities may be affected by pandemics such as COVID-19 and what can be done to improve travelling during pandemics in the future. This chapter discusses the historical context of infrastructure and the spread of pandemics, and the subsequent need of promoting travel that reduces involuntary clusters of people so that traffic flows as smoothly as possible. This chapter discusses “smart transport” and how intelligent transportation systems (ITS) can be used to assist travellers to make safer and more coordinated use of transport networks, drawing upon practical examples, where this is used. This chapter then discusses public transit, micromobility and how smart-mobility applications can reduce the average commuting times and how contactless fare payment can help mitigate the spread of germs. This chapter then progresses to discuss various modes of inter-city travel, the developments in bringing out roadable aircrafts, high-speed rails (HSR) and electric aircrafts on the market, and the challenges these vehicles have thus far faced and continue to face in the future. This chapter concludes with some recommendations for politicians and lawmakers going forward.
