Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2007-04-03
2007-04-03
Bui, Bryan (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C307S105000, C323S207000, C700S292000, C702S057000, C703S003000
Reexamination Certificate
active
10671561
ABSTRACT:
A method for determining an equivalent impedance of a transmission section of an electrical network, includes representing the transmission section as having at least two interfaces with other sections of the network. For each interface, a voltage phasor and a current phasor flowing through the interface are determined from simultaneously made measurements at the interfaces. From the phasors, the equivalent impedance is calculated. The required simultaneousness of the phasor measurements is achieved by means of Phasor Measurement Units (PMUs) that are synchronized via the Global Positioning System (GPS).
REFERENCES:
patent: 3883724 (1975-05-01), Pradhan et al.
patent: 5198746 (1993-03-01), Gyugyi et al.
patent: 6466031 (2002-10-01), Hu et al.
patent: 6476521 (2002-11-01), Lof et al.
patent: 2003/0040846 (2003-02-01), Rehtanz et al.
patent: 127709 (2002-06-01), None
Ota et al, “Evaluation of stability and electric power quality in power system by using phasor measurements”,2000 IEEE, vol. 3, pp. 1335-1340 (2000), 2000 International Conference on Power System Technology. Proceedings of International Conference on Power System Technology (Powercon 2000), (Dec. 4-7, 2000), Perth, WA, Australia (XP 002232025).
Abstract on Yunping et al, “The studies on real time measurement of power angles of generators located at different locations for stability control”, Proceedings of the International Power Engineering Conference, Proceedings of the IPEC '99. International Power Engineering Conference, Singapore, May 24-26, 1999, Database accession No. 6761504 (XP002232126).
Abstract of Too et al, “The studies on real time measurement of power angles of generators located at different locations for stability control”, J. Chin. Inst. Elect. Eng., May 2001, Chinese Inst. Electr. Eng, Taiwan, Taiwan (2001), Database accession No. 6945977 (XP002232127).
Abstract of Hart et al, “PMUs—a new approach to power network monitoring”, The Institution of Electrical Engineers, Stevenage, GB, ABB Review, 2001, ABB Asea Brown Boveri, Switzerland, Database accession No. 6936604 (XP002232128).
Engel, “Splice: an analytical network analysis software”,IEEE Transactions on Education, IEEE, USA, vol. 39, No. 3, pp. 394-398 (Aug. 1996) (XP002232029).
Gönen,Electric Power Transmission System Engineering, pp. 116-123 (1988), Wiley, U.S. (XP002232030).
Kusic, “Computer-aided power systems analysis”, pp. 238-239 (1986), Prentice-Hall, U.S. (XP002232031).
Larsson Mats
Rehtanz Christian
Zima Marek
ABB Research Ltd
Bui Bryan
Le John
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