Kalman filtering applied to power system measurements for relaying

Journal Article · Sun Dec 01 04:00:00 EST 1985 · IEEE Trans. Power Appar. Syst.; (United States)

DOI:https://doi.org/10.1109/MPER.1985.5528637· OSTI ID:5987322

Sachdev, M S; Johnson, N G; Wood, H C

Digital protection algorithms are becoming more complex as the cost of computational equipment continues to decrease. In particular, optimal response digital filters, such as Kalman filters, can be implemented on presently available devices. Optimal filters are not yet extensively applied because they appear complex and engineers have not become familiar with their use. This paper presents the basics of the Kalman filtering technique in power systems terminology and illustrates its use for estimating rotating phasors. Sample designs are presented for voltage and current phasor estimation during system transients. A method for including decaying dc and harmonic frequency components in the filter design is also described and sample results are presented.

• Research Organization: Power Systems Research Group, Department of Electrical Engineering, University of Saskatchewan, Saskatoon, Saskatchewan
• OSTI ID: 5987322
• Journal Information: IEEE Trans. Power Appar. Syst.; (United States), Journal Name: IEEE Trans. Power Appar. Syst.; (United States) Vol. PAS-104:12; ISSN IEPSA
• Country of Publication: United States
• Language: English

Related Subjects

200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
CURRENTS
DESIGN
DIGITAL FILTERS
DIRECT CURRENT
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTRICAL TRANSIENTS
ENERGY SYSTEMS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
FREQUENCY DEPENDENCE
HARMONICS
OSCILLATIONS
POWER SYSTEMS
RELAYS
TRANSIENTS
VOLTAGE DROP