Powersphere: A Photovoltaic Cavity Converter for Wireless Power Transmission using High Power Lasers

Ortabasi, U.; Friedman, Herbert W.

doi:10.1109/wcpec.2006.279380

Cited by 19 publications

(12 citation statements)

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“…Conventionally, a WPT system based on HILPB requires the PTX to perform a series of processes to accurately position the target and the PRX equipped with a specialized reflector or concentrator [16,29,30]. The PTE of HILPB can be maximized only after the receiver is positioned accurately.…”

Section: Background and Related Workmentioning

confidence: 99%

Optimal Path Configuration with Coded Laser Pilots for Charging Electric Vehicles Using High Intensity Laser Power Beams

et al. 2021

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Wireless power transmission (WPT) for wireless charging has been gaining wide attention as a promising approach to miniaturizing the battery size and increasing the maximal total range of an electric vehicle (EV). With an appropriate charging infrastructure, WPT holds great potential to accelerate the acceptance of EVs through users’ higher satisfaction, reducing EV cost, and increasing the driving range and capability. A WPT system based on high-intensity laser power beaming (HILPB) provides an optimal solution for wirelessly charging electric vehicles from a distance of several meters. Despite a large number of WPT approaches, the problem of optimal path configuration for charging EV remains an unexplored area. This paper proposes a method to determine the optimal power transmission path in environments where multiple power transmitters (PTXs) and power receivers (PRXs) are operated simultaneously. To this end, we modeled the HILPB power that reaches a PRX equipped with a photovoltaic (PV) array and validated the model by simulating the WPT process in an environment with multiple PTXs and PRXs using a direct-sequence optical code division multiple access (DS-OCDMA) system. In the simulation environment, upon receiving a request from a PRX, a PTX sent its power channel information through optically encoded laser pulses using each available wireless power channel (WPC). The PRX calculated the maximum deliverable power of a PTX and WPC based on the received channel power indicator of the incident laser beam. Based on the calculation results, it selected the optimal PTX and WPC for its maximum power requirement (MPQ). The MPQ of each PRX was satisfied by applying the algorithm for selecting the PTX according to the alignment and characteristics of the PTXs and PRXs. We modeled a power reception model of the PRX based on a PV array using coded laser pilots and validated it through experimentation. We discussed some algorithms that select the most suitable PTX among several PTXs for which several EVs receive the power it needs.

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Section: Background and Related Workmentioning

confidence: 99%

Optimal Path Configuration with Coded Laser Pilots for Charging Electric Vehicles Using High Intensity Laser Power Beams

et al. 2021

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“…For this aim, WPT is considered as a promising solution. In general, preliminary studies have been carried out for the use of laser beams [21] and RF waves [22] for WPT. The weight, size, mass, and limited operation temperature of the laser systems increase the space mission costs.…”

Section: A Environmental Conditions and Energy On Marsmentioning

confidence: 99%

Wireless Power Transmission on Martian Surface for Zero-Energy Devices

Tekbıyık¹,

Altınel²,

Cansiz³

et al. 2021

Preprint

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Exploration of the Red Planet is essential on the way through both human colonization and establishing a habitat on the planet. Due to the high costs of space missions, the use of distributed sensor networks has been investigated to make in situ explorations affordable. Along with this, the devices with ultralow-power receivers, which are called zero-energy devices, can pave the way to further discoveries for the environment of Mars. This study focuses on wireless power transmission to provide the power desired by zero-energy devices on the Martian surface. The main motivation of this study is to investigate whether conventional harvesters and communication units can supply the required power for a long distance. The numerical results show that it is possible to deliver power to zero-energy devices without utilizing any sophisticated hardware.

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“…Max. efficiency 4% [26] 90% [27] 98% [28] 14% [29] 85% [30] 62% [31] Max. distance, m 0.05 [26] 0.3 [27] 7 [ 32] 1000 [33] 3 [ 34] 1600 [35] R tr 4.6 [26] 0.5 [27] 3.5 [32] 916 [33] 6 [ 36] 222 [35] Power transferred mW [26] k W [ 27] k W [ 37] k W [ 33] k W [ 38] k W [ 35] Potentially hazardous Yes Yes Yes Yes Yes Yes Fig.…”

Section: Apt Cpt Ipt Lpt Mrpt Mwptmentioning

confidence: 99%

Limitations of wireless power transfer technologies for mobile robots

2019

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Advances in technology have seen mobile robots becoming a viable solution to many global challenges. A key limitation for tetherless operation, however, is the energy density of batteries. Whilst significant research is being undertaken into new battery technologies, wireless power transfer may be an alternative solution. The majority of the available technologies are not targeted toward the medium power requirements of mobile robots; they are either for low powers (a few Watts) or very large powers (kW). This paper reviews existing wireless power transfer technologies and their applications on mobile robots. The challenges of using these technologies on mobile robots include delivering the power required, system efficiency, human safety, transmission medium, and distance, all of which are analyzed for robots operating in a hazardous environment. The limitations of current wireless power technologies to meet the challenges for mobile robots are discussed and scenarios which current wireless power technologies can be used on mobile robots are presented.

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Powersphere: A Photovoltaic Cavity Converter for Wireless Power Transmission using High Power Lasers

Cited by 19 publications

References 0 publications

Optimal Path Configuration with Coded Laser Pilots for Charging Electric Vehicles Using High Intensity Laser Power Beams

Optimal Path Configuration with Coded Laser Pilots for Charging Electric Vehicles Using High Intensity Laser Power Beams

Wireless Power Transmission on Martian Surface for Zero-Energy Devices

Limitations of wireless power transfer technologies for mobile robots

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