Artículo
A Noncontact Voltage Measurement System for Power-Line Voltage Waveforms
Fecha de publicación:
07/2019
Editorial:
Institute of Electrical and Electronics Engineers
Revista:
Ieee Transactions on Instrumentation and Measurement
ISSN:
0018-9456
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This paper presents the design and implementation details of a complete noncontact (NC) voltage acquisition system, which allows the measurement of power-line voltage waveforms without galvanic contact. The system is composed by a novel capacitive probe, an analog front end (AFE), and a microcontroller-based digital signal processing stage. A deep experimental characterization of the noncontact measurement system was performed. The tests reported a high linearity (maximum nonlinearity of ±0.2%), a low input-referred noise (11 mVrms), and a low-frequency response distortion. Measurements of ±330-V triangular waveform signals were performed with maximum instantaneous errors below ±1.5 V. The power-line voltage (220 Vrms at 50 Hz) was acquired without galvanic contact with an instantaneous error lower than ±3 V, whereas the mean error on rms voltage measurements was 0.32% and the maximum 0.7%. A two-day continuous measurement of power-line voltage was accomplished for testing system's stability, resulting in negligible accuracy variations.
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Articulos(LEICI)
Articulos de INSTITUTO DE INVESTIGACIONES EN ELECTRONICA, CONTROL Y PROCESAMIENTO DE SEÑALES
Articulos de INSTITUTO DE INVESTIGACIONES EN ELECTRONICA, CONTROL Y PROCESAMIENTO DE SEÑALES
Citación
Haberman, Marcelo Alejandro; Spinelli, Enrique Mario; A Noncontact Voltage Measurement System for Power-Line Voltage Waveforms; Institute of Electrical and Electronics Engineers; Ieee Transactions on Instrumentation and Measurement; 69; 6; 7-2019; 2790-2797
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