Design and realization of regional power quality monitoring system

Power quality monitoring is the necessary condition that makes power supply in good working order. This paper presents a kind of new system that can monitor regional power quality. The system adopts the standard of PQDIF as the power quality data norm, expert system to analyse the status of regional power quality and the communication way of GPRS to transmit data.First of all, through this system the power quality manager can check the power quality status of each monitoring station by network from time to time, so we can analyse in time and reflect overall power quality level. Secondly, through the monitoring track record and statistic of power quality accident, the power supply and consumers both can define respective power quality administration obligation, so this system can also provide evidence which effectively settles the dissension because of power quality. Also it can monitor actual power quality of customers and is useful to establish a green electric power system.