Title :
Accurate voltage phasor measurement in a series-compensated network
Author :
Lambert, Jocelyn ; Phadke, Arun G. ; Nabb, Danielle Mc
Author_Institution :
Hydro-Quebec, Montreal, Que., Canada
fDate :
1/1/1994 12:00:00 AM
Abstract :
This paper describes the feasibility studies concerning an accurate voltage phasor measurement in a series-compensated network undergoing large disturbances. The principal modes of distortions in such a network are described. Some of these modes are changing with the fundamental frequency. The phasor evaluation is based on a new digital filter approach in which the fundamental frequency is estimated using a least-square algorithm. The need to have special potential (voltage) transformers is also discussed. This approach would be used in a shunt reactor switching scheme for an overall voltage control of a transmission network
Keywords :
compensation; digital filters; least squares approximations; potential transformers; power system measurement; transmission networks; voltage measurement; digital filter; distortion modes; fundamental frequency estimation; least-square algorithm; potential transformers; series capacitors; series-compensated network; shunt reactor switching scheme; transmission network; voltage control; voltage phasor measurement; voltage transformers; Circuit faults; Distortion measurement; Filters; Frequency estimation; Inductors; Intelligent networks; Propagation losses; Shunt (electrical); Substations; Voltage measurement;
Journal_Title :
Power Delivery, IEEE Transactions on
