Data Acquisition, Power Quality Analysis Based On The Tms320c5402 Chip Dsk Platform

By looking back on the present situations of the electric harmonic monitoring equipments, the prospect of the practical application of Digital Signal Processor (DSP) in the electric power system is discussed in this paper. This paper briefly analyzes the concepts of harmonic and methods of computing harmonic and then proposes the hardware structure made up of AD73360 (A/D) and TMS320C5402 (DSP) at the demand of practical applications of power department.The design of both hardware and software is finished.A real-time high-speed multi-channel, synchronous data sampling and processing system is designed based on DSP. AD73360 is directly connected to Multi-channel Buffered Serial Port (McBSP which is a kind of six-wired synchronous serial port) on DSP for data exchange.The sampled voltage and current signals are harmonic analyzed by DSP using the fast Fourier transform (FFT) algorithm. Some considerations concerning about the signal sampling are also discussed.The equipment can provide high-speed signal sampling and real-time harmonic analysis.