Future space missions may use laser power beaming systems with a high power laser to transmit light to a photovoltaic array receiver. The photovoltaic array receiver can be mounted to a satellite or a spacecraft. To investigate the V-I and P-V characteristics of photovoltaic cells (PV cells) under laser illumination, a mathematical model and simulation model related to the voltage and current of PV cells is studied. Based on the MATLAB simulation tool, the simulated V-I and P-V characteristics of PV cells for various irradiances are presented. To validate the simulated results, three experiments are designed. The results obtained by experimenting are compared with the simulated results, and the difference between them is not apparent.
A thermal effect model is presented in this paper, with the background of ground-based laser irradiating moving and rotating target in the air. Firstly, the encounter scene of laser irradiating target is assumed, and the main parameters of laser and target are given. Secondly, the calculation model of irradiating parameters is derived, including irradiating area, power density distribution and convection heat transfer per unit area. Thirdly, the thermal effect model is established to describe heat conduction and thermal ablation during laser irradiating. Finally, the thermal effects are calculated by assuming the parameters in encounter scene of laser irradiating target. As shown in the example, the thermal effect model can minutely describe the temperature field and ablation results of moving and rotating target irradiated by laser.