Development Of New Equipment For Monitoring Power Quality

This paper analyzes the situations of the power quality monitoring equipment home and abroad, the demand of power department and the practical applications. According to the new emended national standard of power quality, A new surveillance device is developed.TMS320F206(Digital Signal Processing) is usded in the device as CPU. It can perform the following duties: A/D transformation, data sampling, data processing, man-machine conversation, displaying. This device can monitor the power quality.This paper gives a facile simple method for measuring the frequency of power system, emends the mathematical model of Voltage fluctuation and flicker, confirms the means of every physics variation, expounds the algorithm of the power quality indexes and compile program to practice the algorithm on the practical device.