Abstract:
One of the key points for constructing power quality monitoring(PQM) system is uniform communication protocol and data sharing,so development and application of PQM equipment based on IEC 61850 becomes an inevitable trend.PQM deals with various types of data,including steady data,transient data and sequence of event(SOE) etc,each with different communication method and storage demand.Starting from the actual demands of data measurement,data transmission,and data storage in PQM domain,distribution functions in PQM equipment based on IEC 61850 and concrete implementation of function blocks such as measurement,transient event detection,operation and over limit supervision,and data storage etc,are analyzed in detail.The modeling of function is instructive for the design and development of PQM equipment based on IEC 61850.