Design And Performance Study On Photoelectric Conversion Module In Fiber Energy Transmission System

Optical Fiber power transferring technology can use optical fiber as a transmission mediumand transfer laser power. It has a small environmental pollution, lower energy consumption andhigh efficiency. Thus, an efficient design of fiber-optic system of the photoelectric conversionmodule can effectively improve the photoelectric conversion (an important part of thephotoelectric conversion module) conversion efficiency has become an increasingly urgentproblem.This paper presents a simulation design for Photoelectric Conversion Module in Fiber PowerTransmission System. When considering the coupling fiber and media converter, Zemax opticalsoftware was used to simulating the coupling efficiency. The polycrystalline silicon thin filmphotovoltaic cells was mainly designed, which is a photoelectric converter. The photocellssimulation software PC-1D was used to optimizing the three factors affecting the efficiency ofphotovoltaic cells. In the photovoltaic module voltage step-up circuit was analysed, the circuitsimulation software LTspice IV was used to design the photoelectric conversion module, thenthe DC output circuit was designed, which meet the system requirements of the low voltagepower supply.At the last, we analyze the three major factors that affect the efficiency of photovoltaic cells:temperature, minority carrier diffusion length and surface recombination velocity. Photocellsimulation software PC-1D software was used in simulation analysis. The simulation results showthat the photocell illuminated by the single850nm wavelength light, poly-silicon film batterysimulation parameters (fill factor of0.8463, the photoelectric conversion efficiency of40.13%)were obtained. With analysis the voltage step-up circuit and the coupling efficiency ofphotoelectric conversion module, the Zemax Software was used to optimizing the couplingsystem, the maximum theoretical coupling efficiency, what is99.56%, was obtained. Withsimulation analysis photoelectric conversion module circuit used LTspice IV, the photocell outputvoltage through a two-stage DC-DC boost transform was obtained, i.e. about15V regulatedoutput. Finally, a block diagram of the overall energy system based on fiber-optic polysilicon thinfilm photovoltaic cells and analysis photovoltaic modules and components for performance waspresented, which has practical guiding significance for the application of fiber-optic systems.