Study On Monitoring System Of Transmission Lines Galloping Based On Wireless Sensor Network

Galloping of power transmission lines can lead to severe disruptions in the electrical power supply.Many research work about the mechanism and protection of the conductor galloping has been done at home and abroad. But because of the complexity of the galloping,there are no more successful conductor galloping monitoring system which can be used to verify the mechanism and anti-galloping results.Based on the study of existing monitoring equipment of monitoring conductor galloping ,and in order to improve early warning mechanisms of power line dancing and to provide the basis for researching conductor galloping mechanism. In this paper, a multi-point transmission line galloping monitoring system is developed,which applies the rapid development of ZigBee PRO wireless sensor network technology and acceleration sensor.Content and results of this study include the following:①Study the mechanism of transmission line galloping and features, summarized the advantages and disadvantages of the transmission line galloping monitoring systems which based on embedded system ,a monitoring system is proposed which using wireless sensor network technology and acceleration sensors for real-time monitoring of transmission line dancing ,and the acceleration sensor monitoring galloping principle and mathematical model were analyzed. The monitoring system uses a distributed measurement architecture, and the structure can be divided into three parts: field data collection network, data transmission and control center of remote data processing.For the acceleration of data acquisition and errors that arised during the integration ,the low-pass filter and integration baseline calibration data processing algorithms were proposed. simulation results verify the effectiveness of the algorithm.②CC2530ZDK is selected as wireless sensor network development platform,and introduce coordinator node hardware architecture and peripheral circuits.On this basis, acceleration sensor data acquisition nodes is designed.③Based on the the IAR Embedded Workbench software, Z-Stack protocol stack is developed and ported for the the design of the node hardware, achieved the coordinator node and wireless sensors'data acquisition and transmission, completed hardware and software debugging.④For the linear topology of conductor galloping wireless sensor network ,a optimal node deployment using greedy algorithm as core and the longest life cycle of and the minimum total power consumption of wireless network as constraints is developed. The program is compared with the uniform deployment of nodes , and results show that the algorithm performance has greatly improved in total network power consumption and network lifetime.⑤It tested and debugged the system.The simulating test platform for transmission lines galloping is built in the laboratory, the system running test is carried out, and the results show that the system has the feature of good practicability and reliability. coordinator and the acceleration sensor nodes designed in this paper are simple, wide coverage,which offering a way of getting the state of lines galloping and guidance for monitoring transmission lines galloping.