Research on Faults Accurate Localization in High Altitude Distribution Lines
To maintain the normal operation of power transmission and distribution and power engineering lines in high altitude areas and improve the stability and quality of power supply,the high altitude distribution lines faults accurate localization method is proposed.The principle of line fault traveling wave accurate positioning is analyzed to realize the confirmation of fault point location.By calculating the fault current wave speed and line length,the double-end positioning of traveling wave is realized.By analyzing wave speed error,line length error,and wave head error,the precision of traveling wave positioning of high altitude transmission lines is improved.Based on the double-end traveling wave fault location algorithm,and wavelet transform,Hilbert-Huang transform method,the optimization measures of traveling wave fault early warning and accurate location are proposed innovatively.Simulation and analysis results show that the proposed method can quickly identify the fault interval and the exact location of the fault and realize the rapid search of power transmission and distribution line faults and the precise location of the fault point.The application of this method can shorten the inspection time of power line operation and maintenance personnel and improve the reliability of power supply.
Power transmission and distribution linesFault early warningPrecise localizationPower supply reliabilityHigh altitudeLine traveling wave
万方数据
维普
