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Least-squares estimation in phasor-based synchronized frequency measurements

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2 Author(s)
Dawei Fan ; Bradley Dept. of Electr. & Comput. Eng., Virginia Tech., Blacksburg, VA ; Centeno, V.

This paper investigates the applications of leasts-quares (LS) estimation in phasor-based synchronized frequency measurements. First, LS estimation is developed for synchronized frequency measurements with DFT error-free phasors. Second, LS estimation for legacy synchronized frequency measurements is reviewed. Third, the LS estimation for synchronized frequency measurements proposed in [9], which has a better dynamic performance, is developed. The performance of the discussed methods is illustrated with computer simulations and phasor measurement unit (PMU) testing.

Published in:

Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE

Date of Conference:

20-24 July 2008