Research on new monitoring system for important power users in smart distribution network

Recently, the monitoring service for important users in the distribution network is relatively insufficient in China, which greatly influences the efficiency of power distribution. Based on the embedded MCU, wireless sensor network and Ethernet communication technology, a kind of intelligent monitoring system for distribution network is presented according to the characteristics of important power users. The collected data could be shared with the electric power company through Ethernet, which realizes the automation and remote power information monitoring. The monitoring system consists of data acquisition terminals, network concentrator and remote server. The power information and the status data of key devices could be collected by the data acquisition terminals, which consists of precision sensors and a signal conditioning circuit. The data are sent to a network concentrator through 433MHz wireless networks. The network concentrator communicates with the remote server and exchanges data with the data acquisition terminals simultaneously. The remote server is able to display, process and store the real-time information, including grid basic energy data, major power quality parameters and equipment operating status.