The Study On A Device For Supervision And Measurement Of Power Quality Based On DSP And PCI Bus Technology

Abstract: Consideration five items of power quality in design , a device for power quality monitoring based on DSP and PCI bus technology is developed. This equipment uses virtual instrument idea, which adopts a digital acquisition board, PC bus and industrial computer in hardware, and a graphics language LabVIEW in software. Data acquisition card uses DSP technology and PCI bus architecture, and it can collect and process data in real time. This board has proper strategy to get the data for power quality analysis, because it uses two chip, six channel analog-to-digital converter and phase locking synchronous technology, which make it able to collect three phase electric voltage and electric current signals in timing sampling and equal-time cycle sampling ways. This paper still simply introduces using the C language to program DSP routine, and the design and realization of PCI device driver at last.