Author_Institution :
Coll. of Electron. & Inf., Xi´an Polytech. Univ., Xi´an, China
Abstract :
With the speeding up of the power grid construction, accidents on transmission lines have also occurred frequently, such as: icing lines, conductor galloping, aerolian vibration, windage yaw and wires sag etc. Therefore, it is of great importance to make online monitoring and fault diagnosis for transmission lines comprehensive state with using intelligent monitoring device. At present, the study about the transmission wires state has made very big progress home and abroad, but the low accuracy of the collecting information, the unreliable power supply, the inconvenient installation and other technical problems are still exist. Aiming at the existing technical problems, an intelligent on-line condition monitoring system for transmission lines comprehensive state is put forward in this subject research, it is through the latest sensor technology that various sensors for wires state measurement are integrated, and information of transmission lines is timely collected to ensure the safety of the power transmission. According to the test results, various information of transmission lines state can be accurately collected by the measurement method in this system, and the monitoring device can be installed conveniently, meanwhile it contributes to early detect hidden danger and remove the faults in time, so as to improve the reliability of the transmission line operation.
Keywords :
accidents; fault diagnosis; power grids; power supply quality; power transmission lines; power transmission reliability; aerolian vibration; collecting information; comprehensive state; conductor galloping; fault diagnosis; icing lines; inconvenient installation; intelligent monitoring device; monitoring sensor unit design; online monitoring; power grid construction; power transmission lines state; reliability; transmission lines accidents; unreliable power supply; windage yaw; wire transmission line; wires sag; Conductors; Monitoring; Power transmission lines; Temperature measurement; Transmission line measurements; Vibrations; Wires; New sensors; Power supplies; on-line monitoring; transmission lines;