Development and application of low voltage power line communication test system

According to the characteristics of communication channel, it researched communication performance test method of low voltage power line in smart grid construction. The spectrum scan combination algorithm based on fixed time interval communication was proposed. It designed carrier communication test system to test communication performance of carrier module and developed automatic test software of the system. The system changed communication channel parameters and tested the maximum level of three kinds of carrier technology solutions with different center frequency. The results show that the system can accurately test the operation parameters of acquisition terminals and smart meters.