Research on remote monitoring of smart power grid using wireless sensor network

For the expanding power grid, its security has been more and more important. Smart grid can monitor the operation status of the power grid using sensors, timely feedback faults, and improve the security of power grid. This paper briefly introduced the ZigBee wireless communication technology and power grid monitoring system based on ZigBee wireless sensor network. The power grid monitoring system was tested in a small-scale local substation and compared with a WiFi based power grid monitoring system. The test items included the detection accuracy of power grid fault and the packet loss rate and time delay of wireless sensor network in the monitoring system. The results showed that the monitoring system designed in this study had higher fault detection accuracy, lower average packet loss rate and maximum packet loss rate, smaller average time delay and maximum time delay and smaller measurement error compared with the WiFi based monitoring system. In conclusion, the grid monitoring based on ZigBee wireless sensor technology can effectively monitor grid. © 2020, Cefin Publishing House. All rights reserved.