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Información tecnológica

versión On-line ISSN 0718-0764


AFONSO, João L; BATISTA, José; SEPULVEDA, Manuel J  y  MARTINS, Júlio S. Low-Cost Digital System for Power Quality Monitoring. Inf. tecnol. [online]. 2007, vol.18, n.4, pp.15-23. ISSN 0718-0764.

This paper describes the development of a low-cost digital system used for power quality monitoring. The system uses voltage and current Hall sensors, a standard data acquisition board, and has its processing system based on LabVIEW™, running on a regular Personal Computer. Several parameters related to power quality can be analyzed through 4 different applications: “Scope and THD”, “Events PQ”, “Classical Values” and “p-q Theory”. The acquired information can be visualized in tables and/or in charts. It is also possible to generate reports in HTML format. In this format, the reports can be sent directly to a printer, can be embedded in other software applications, or can be accessed through Internet, using a web browser.

Palabras clave : digital system; electrical energy quality; LabVIEW™; virtual instrumentation.

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