Detection Technology Based on Ultraviolet Spectrum and Non-dispersive Infrared Optical Charged Sensing

The detection technology of the ultraviolet spectrum and non dispersive infrared optical charged sensing is studied, spectral absorption capacity is simulated, and the concentration inversion algorithm is proposed to improve the effective detection capacity of the instrument. The optical structure suitable on online detection of high-voltage equipment is designed, the on-line analysis of trace decomposition gas composition is realized, and prototype is developed. The optical noise suppression technology suitable for the field is studied, optical path system is designed to withstand the gas pressure of high-pressure equipment, and the influence of field vibration and temperature change of high-pressure equipment on the optical path structure is solved. The judgment threshold of expert diagnosis system is formed to predict the operation state and fault type of GIS equipment according to the changes of types and contents of SO2, CS2, H2S and CF4. The above achievements have laid theoretical foundation for realizing the on-line monitoring of insulation status of the SF6 Electrical equipment, greatly promoted the development and application of ultraviolet spectrum and non-dispersive infrared optical live sensing detection technology, built theoretical system of the fault diagnosis and condition based maintenance of SF6 gas insulation equipment, and laid the foundation for SF6 insulation equipment based on trace SO2, CS2. The condition based maintenance theory and practice of H2S and CF4 gas detection ensure the economic and the reliable operation of SF6 gas insulation equipment and the safe and stable operation of the whole power grid.