Research On Spectrum Split Solar Optical Fiber Energy Transmission System

Solar energy is the most ideal alternative energy for mankind in the future,and all countries attach great importance to the development and utilization of solar energy when developing new energy sources.At present,most of the transmission of optical fiber to sunlight is full-spectrum transmission,which is often accompanied by various energy losses when transmitting solar energy,which greatly reduces the energy utilization efficiency,and it is impossible to achieve large-scale array and long-distance transmission in the process of energy transmission.Based on the analysis of existing solar energy utilization methods,this subject proposes a spectrum split solar optical fiber energy transmission system,which can greatly reduce the energy loss during the transmission process.This paper proposes a split solar energy transmission system,which includes a concentrator,a splitter,a coupling device and a transmission device.This paper designs a bracket to build an experimental platform and then determines the test points.According to the measurement results,the sunlight is directly coupled into the fiber without being split.The average transmission efficiency after 2m in the silica optical fiber is about 39.29%;after the split,the average transmission efficiency is 89.29%.The experimental results show that splitting sunlight can effectively improve the transmission efficiency of sunlight.This paper uses Matlab to simulate the transmission process of sunlight in the optical fiber,uses Trace Pro to simulate the transmission of sunlight through the Fresnel lens in the optical fiber,and analyzes the error of the Fresnel lens,provides a theoretical basis for the design of spectrum split solar optical fiber energy transmission system.According to the simulation results of optical fiber energy transmission system,the average loss rate of sunlight after propagating through a 1m fiber is about 0.47%,and after light propagating through a 20 m fiber,the average loss rate is about 19.43%.The deviation of the incident angle has a great influence on the convergent position of sunlight,and a suitable coupler can greatly improve the overall transmission efficiency of the system.Compared with the existing sunlight transmission system,the sunlight is decomposed into multiple segments of sunlight with different wavelengths through the beam splitter,and the sunlight of different wavelengths is coupled into the energy transmission fiber of different materials through the fiber coupler to realize the sunlight.Efficient and long-distance transmission.Since the fiber material has the highest efficiency propagation band in the process of transmitting sunlight,the incident sunlight is split into different wavelength bands for transmission,which reduces the energy loss during the transmission process and improves the energy utilization efficiency.