Laser wireless power transmission(LWPT) has advantages of higher heat flux density and conversion efficiency, longer transmission distance and better directional transmission performance. LWPT is more suitable for middle/far transmission range compared with electromagnetic induction, magnetic resonance and other types of wireless power transmission, which has a broad scope in aerospace field, such as unmanned air vehicle powered by LWPT, space solar power(as shown in figure 1), wireless sensor network, deep space exploration, etc. The technical barrier of LWPT mainly lies in the development of high power laser emitter and high conversion efficiency of the receiver. Under middle/far transmission range, the receiving heat flux presents fluctuating, random ununiform distribution which will aggravate the interactions of optical-thermal-electrical field on solar cell and decrease the energy transfer efficiency. The current study constructed multi-field coupled model of single solar cell under ununiform heat flux distribution. A LWPT experimental platform has been built and tested to verify the modelling parameters of I-V relation formular changing with optical intensity and temperature. Based on the corrected parameters, the optical, thermal heat transfer and electrical characteristics have been solved by finite element method. Performances at different laser incident angle and divergence angle have been obtained for the references of LWPT applications.
Keywords: Laser wireless power transmission, beam irradiance, thermal heat transfer, I-V characteristic, regression.

Since 2017, he received his PhD degree in Engineering Thermophysics at Harbin Institute of Technology (HIT). His research focuses on Concentrated Solar Power(CSP), especially the optical, heat transfer and electrical characteristics of Concentrated Photophvolics(CPV) array. During his 7 years’ research in HIT, he had participated in several projects related to CSP and CPV. A high temperature pressured volumetric solar receiver had been developed reaching up to 1700K & 5 bars. He also designed the first CPV concept of space solar power station of China. In 2017, he participated the International Space Solar Power Student Competition(held by IAF, IAA SPACE CANADA and NSS) and won the first prize. Besides, he had been selected as a member of the China Space solar power satellite committee. He had visited the Prof. Tapas’s group in 2013 and participated in an EPSRC project relating to a novel design for the CPV/T system. After his graduation from HIT at 2017, he got an assistant professor position at Northwestern Polytechnical University. Now he has received two projects from National Natural Science Foundation (totally 840k RMB) which related to the CPV and laser power transmission technologies.