Based On Dsp & Cpld Power Parameter Monitoring Device

By analyzing the situations of the equipments for testing power parameters home and abroad,aiming at the demand of power department and the practical applications,we designed the equipment for testing power parameters based on DSP (TMS320F206) & CPLD(XC95108).The hardware frame and the methods to calculate the power parameters are mainly discussed in this thesis.With regards to the hardware design,we use the CPLD and DSP to control the ADS7864,which can sample the six signals of voltage and current at the same time;also we use the CPLD to realize some control circuits,such as circuits to watch the lacking phases, to generate the sample impulses, and the debounce circuit of the keyboard; The communication part of this system provides the interface to the user.With regards to the software design,we have realized the software filter (FIR); and we use the Fast Fourier Transform Algorithm to analyse the harmonic of the voltage and current; also we analyse the method of calculating all the parameters of the power system.At the end of this paper, I analyse the error of this system and the matters which must be taken great attention to.