Integrated Power Quality Monitoring Systems in smart distribution grids
The smart distribution grids will have to supply the electricity according to power quality standards. Various measurement instruments, currently considered as cornerstones of smart grids (smart meters, protection relays, fault recorders etc.), do not measure all the power quality parameters specified in these standards. Some distribution system operators are already installing Power Quality Monitoring Systems (PQMS), based on fixed power quality monitors. The aim of this paper is to present the possibility of integrating power quality data from PQMS system, AMR/AMI (Automatic Meter Reading/Advanced Metering Infrastructure) system and all the other systems in the distribution network, into an Integrated Power Quality Monitoring System (IPQMS). The results of pilot projects conducted in the Public Electric Utility Elektroprivreda of Bosnia and Herzegovina, in order to test the three power quality monitoring systems, are also presented. The possibility of using data from smart meters in power quality monitoring was analysed.