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

Volume

9

Issue

1

fYear

1994

fDate

1/1/1994 12:00:00 AM

Firstpage

501

Lastpage

509

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;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.277722

Filename

277722