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Published on: January 7, 2019
A real-time smart sensor for high-resolution frequency estimation in power systems
David Granados-Lieberman1, Rene J Romero-Troncoso, Eduardo Cabal-Yepez
1HSPdigital Research Group, División de Ingenierías, Campus Irapuato-Salamanca, Universidad de Guanajuato / Carr. Salamanca-Valle km 3.5+1.8, Comunidad de Palo Blanco, 36700 Salamanca, Guanajuato, Mexico; E-Mails: granlieber@hspdigital.org (D.G.-L.); troncoso@hspdigital.org (R.J.R.-T.).
Abstract:
Power quality monitoring is a theme in vogue and accurate frequency measurement of the power line is a major issue. This problem is particularly relevant for power generating systems since the generated signal must comply with restrictive standards. The novelty of this work is the development of a smart sensor for real-time high-resolution frequency measurement in accordance with international standards for power quality monitoring. The proposed smart sensor utilizes commercially available current clamp, hall-effect sensor or resistor as primary sensor. The signal processing is carried out through the chirp z-transform. Simulations and experimental results show the efficiency of the proposed smart sensor.
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