Research Progress of Laser Wireless Power Transmission

Wei, 李威 Li; Lingyuan, 吴凌远 Wu; Weiping, 王伟平 Wang

doi:10.3788/lop55.020008

Cited by 5 publications

(2 citation statements)

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“…LWPT finds wide applications in medium-and long-distance power transmission scenarios, distinguishing it from other wireless transmission technologies like electromagnetic induction and magnetic field resonance coupling [3]. The vast application potential of LWPT lies in the ground, space to ground, and space-based practical applications [4,5].…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Reverse Truncated Pyramid and Other Nonimaging Concentrators as the Receiver in Laser Wireless Power Transmission System

Meng,

Li,

Hou

et al. 2024

International Journal of Energy Research

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The global energy landscape faces significant challenges in meeting the demands of modern industries for stable and efficient energy supply. Laser wireless power transmission (LWPT) systems, which utilize the photovoltaic effect to convert laser beam energy, hold great promise due to their long-range transmission capability and high precision. However, the current energy conversion efficiency of these systems requires further improvement to achieve optimal performance. To enhance concentrated photovoltaic (CPV) system performance, the study examines different nonimaging concentrators such as reverse truncated pyramid, cross-compound parabolic concentrator, and square elliptical hyperboloid. Numerical simulations using the finite element method analyze the multifield coupling mechanism of PV modules with various concentration lenses. Three CPV systems with RTP concentrators of different heights were studied to understand the impact of geometry on CPV performance. And the main impact of rotation angle was discussed. The research findings provide essential insights into CPV system performance and the influence of different concentration lenses, contributing valuable knowledge towards improving LWPT technologies.

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Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Reverse Truncated Pyramid and Other Nonimaging Concentrators as the Receiver in Laser Wireless Power Transmission System

Meng,

Li,

Hou

et al. 2024

International Journal of Energy Research

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“…Laser wireless power transmission (LWPT) is an energy supply system [1] that uses a laser as an energy transmission carrier to provide energy support to a target device operating in a specific environment without relying on energy transmission lines. LWPT is mainly composed of a laser transmitting system, laser receiving system, energy management system, and load [2]. The laser transmitting system is composed of power supply, laser driver, laser, laser emission system, tracking and aiming system, etc.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Laser Cell Response Characteristics under Different Irradiation Conditions

et al. 2023

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Although the application of laser wireless energy transmission technology in many fields such as UAV power supply is increasing, the laser incidence angle and beam shift remain the key factors limiting the efficiency of long-range laser wireless energy transmission. In this study, a laser cell response test platform was built to measure and analyze the response characteristics of a laser cell under different laser incidence angles and beam shifts. The results show that the increase in the incident angle intensifies the reflection on the irradiated surface, resulting in a linear decrease in the power density received by the laser cell, which eventually leads to a significant decrease in the output power, and the output power tends to be close to 0 when the incident angle exceeds 75°. The increase in the beam offset distance increases the reverse bias of the cell, which is the main reason for the significant decrease in the output power. The local irradiation also leads to an increase in the heat generation power; when the beam coverage is below 50%, the overall output power tends to be close to 0. This study provides a reference for improving the laser wireless energy transmission efficiency and laser cell optimization.

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Research on Power Conversion Efficiency of Laser Wireless Power Transmission System

Xu¹,

Zhou²,

Zhang³

et al. 2022

Lecture Notes in Electrical Engineering

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Research Progress of Laser Wireless Power Transmission

Cited by 5 publications

References 0 publications

Comparative Analysis of Reverse Truncated Pyramid and Other Nonimaging Concentrators as the Receiver in Laser Wireless Power Transmission System

Comparative Analysis of Reverse Truncated Pyramid and Other Nonimaging Concentrators as the Receiver in Laser Wireless Power Transmission System

Analysis of Laser Cell Response Characteristics under Different Irradiation Conditions

Research on Power Conversion Efficiency of Laser Wireless Power Transmission System

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