Use of Voltage Stability Monitoring and Transient Stability Monitoring Tools at the Nordic Power System Operators: Introduction of Synchrophasor Applications in the Control Room

This chapter describes two power system monitoring applications that have been developed and introduced to operators at Statnett control centers. Statnett is the transmission grid owner and system operator (TSO) in Norway. Operators have identified online monitoring and assessment of stability properties as the most useful application of synchrophasor information that can be easily implemented. The two applications for online voltage stability and transient stability monitoring provide critical information that until now has not been available to operators. The work is part of several efforts to introduce synchrophasors applications in the control room.