Research Of DSP In Digital Power Line Carrier

Power line carrier (PLC) is a special technique of communication in electric power system, which has very important status in communication net of electric power system. As the appearance of digital power line carrier (DPLC), it has gradually become the developing direction of power line carrier.This thesis generally introduces the principles, features and digitalization of power line carrier. Firstly, a research and realization of digital power line carrier-data and voice multiplex technology is specifically described. Secondly, voice compressed code, data asynchronous/synchronous convert and multiplex technique are emphatically introduced. Thirdly, a detailed project of realizationincluding part of hardware and software is provided. And finally the debugging of hardware and software has been fulfilled on a test board of TMS320VC5410. A valuable result has been achieved at last.The result indicates that the capacity and performance of power line carrier can be greatly improved by digitalization based on digital signal processor (DSP) technique, which might be useful to the further research of digitalization of power line carrier.