Synchronised power quality monitoring system using global positioning system (GPS)

Restructuring in network industries, high penetration of market players and increased demand, all of these have made it a necessary requirement to provide highly reliable mains supply with controlled quality parameters such as harmonic distortion and voltage limits. To achieve this power systems owner needs to put restrictions on the connected loads which make the power quality or power angle unacceptable. This can be achieved using synchronised monitoring across various substations in the power systems. Proposed in this paper is a potential power quality monitoring system which can be viewed as a combination of power quality and phasor measurement. Synchronization is done using global positioning systems and the events are time stamped using global time reference.