Design Of Intelligence Network Monitor For Overhead Power Line

Overhead power transmission line is an important part of the power system, it’s urgent to buildup a transmission lines intelligent monitoring system with reliable and feature-rich, this can directlyimprove the management level of transmission lines and enhance the security and stability of electicpower system. In this paper, the transimission lines fault and states information is obtained by usingintelligent monitoring system measure and analysis of various parameters, and the results can beuploaded to the monitoring center and grid work personnel’s mobile phone by using wirelesscommunications. This can accurately reflect line fault information and operation condition, forpromptly eliminate line fault and eliminate hidden line fault provide premise conditions.In the first part of this paper, the recent domestic and overseas development of high voltageoverhead transmission lines fault monitoring technique is introduced, and summarized the advantagesand disadvantages of the current common fault detection methods. And then against the faultcharacteristics of short circuit, single-phase grounding and open circuit fault of the small currentgrounding system, and combined with the simulation and experimental data put forward thecorresponding fault detection methods. According to environment characteristics of the transmissionlines designed the state detection scheme, mainly includes wire temperature, temperature andhumidity, wind direction and wind speed environment, etc. The third part of the paper describes themain hardware implementation of intelligent network monitoring node of the overhead transmissionline monitoring system, Expounds the hardware realization method of micro controller, system faultdetection, power supply, data collection and transmission, Completed the circuit principle diagramand PCB design and plate making and debugging figure of the monitoring node. In the fourth part ofthe thesis analyzed the software architecture of the monitoring node system and introduced thefunction module software realization. At last, in the laboratory conditions seting up an equipmentexperimental platform by using the fault simulation experiment tables, respectively experiment thefault detection module and the power supply module, and the experimental results verified thecorrectness of this design.