Online Monitoring Method for Wind-induced Wire Swing in Ultra High Voltage Transmission Lines
Current online monitoring methods for wind-induced wire swing mostly adopts unidirectional layout of monito-ring nodes,and thus are confounded by small monitoring coverage and sluggish response to anomalies.In view of this the present work studied modification of method to online monitor wind-induced wire swing deviation of ultra-high voltage transmission lines.By considering current online monitoring requirements and standards,initial monitoring indicators were set up and modal analysis was carried out.A multi-dimensional crossover method was adopted to expand the coverage of monitoring and rationally arrange multi-dimensional crossover nodes.Based on this,a transmission line wind-induced swing FBG online monitoring model was constructed which uses phase measurement to realize online monitoring process-ing.The final test results indicated that compared to conventional technologies such as weighing-based method,and Φ-OTDR method,the proposed method can achieve responding time consumption to anomalies effectively controlled below 0.2 s,indicating an obvious improved quality and efficiency within the current monitoring range.
ultra-high voltagetransmission linewind-induced wire swingmonitoring methodonline monitoringcir-cuit control
万方数据
维普
