Online Monitoring System of Electrical Energy Quality Based on Broadband Power Line Carrier

This paper analyzed broadband power line carrier transmission process.An online electrical energy quality monitoring system was designed based on the electric power broadband carrier principle,and the design of revelant parts of hardware and software was also completed.And the electrical energy quality of substation in a cold rolled steel factory was tested.The actual testing results show that the monitoring system works stably,and has good performance,high reliability and application value.