To study the influence of laser intensity and temperature on the performance of laser power converters (LPCs), a two-dimensional model of an In0.3Ga0.7As LPC by the finite element method was established. The validity of the model was verified by comparing the theoretical value with the experimental results. The factors that influence the performance of LPCs were analyzed from the perspective of recombination. Results indicate that the existence of grids at the front surface improves the collection of carriers efficiently, and the influence of temperature and laser intensity on carriers recombination is quite different at 0 and Vm (voltage at maximum power point) bias voltages. The research of this paper provides a reference for the optimization of LPCs.
Using laser as a technology of wireless energy transmission to supplement power for small electronic equipment, for the characteristics of fast charging speed, flexible and convenient implementation. The wireless energy transmission system consists of mobile charging station and mobile object. There are two-dimensional platform, laser and corresponding optical elements on the mobile charging station. The platform controls the laser beam to aim at the photovoltaic panel located in the mobile object. The mobile object is designed using Super-Capacitor to store electricity generated by photovoltaic panels. Grid charging working area, modeling for moving objects. The logic algorithm of mobile charging station to mobile object charging is designed to deal with the general working conditions and special conditions. The experiment obtained the I-V curve of the photovoltaic panel illuminated by the laser, calculated and selected the SuperCapacitor to meet the car's electricity demand. The results show that the wireless energy transmission using laser technology can realize the long distance transmission of the electrical energy required by small electronic equipment and fit the requirements of long time continuous operation.
The temperature rise of the InGaAs solar cells which under the continuous laser exposure is theoretically calculated, and experimentation,correspondingly designed to bismuth telluride thermoelectric power generation and cooling system,thereby enhancing the overall photovoltaic system integrated photoelectric conversion efficiency.
In the laser wireless power transmission (LWPT) system, the solar panel plays a decisive role as the receiving end of the energy. As the transmission medium of energy in LWPT system, the energy of laser presents generally Gauss distribution, resulting in uneven energy of the laser received by the solar panel, which may affect the transmission efficiency and capacity of the system. In this paper, a 1070nm continuous fiber laser is used to irradiate the In0.3Ga0.7As solar panel, and the temperature distribution on the back of the panel and the IV characteristics were recorded. The results showed that the temperature distribution on the back side of the solar panel was almost the same under the conditions of the same laser power but different energy distribution. In terms of performance of the panel, due to the increase in beam uniformity, the short-circuit current increased by 33.4%, the maximum output power increased by 18.5%. In addition, the irradiation of different laser power was also studied in this paper. The influence of different laser intensity and different beam uniformity on the efficiency of the panel were given.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.