The Design of a Low Cost Phasor Measurement Unit

Antonio Delle Femine, Daniele Gallo, Carmine Landi and Mario Luiso
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Antonio Delle Femine: Department of Engineering, University of Campania “Luigi Vanvitelli”, 81031 Aversa (CE), Italy
Daniele Gallo: Department of Engineering, University of Campania “Luigi Vanvitelli”, 81031 Aversa (CE), Italy
Carmine Landi: Department of Engineering, University of Campania “Luigi Vanvitelli”, 81031 Aversa (CE), Italy
Mario Luiso: Department of Engineering, University of Campania “Luigi Vanvitelli”, 81031 Aversa (CE), Italy

Energies, 2019, vol. 12, issue 14, 1-15

Abstract: The widespread diffusion of Phasor Measurement Units (PMUs) is a becoming a need for the development of the “smartness” of power systems. However, PMU with accuracy compliant to the standard Institute of Electrical and Electronics Engineers (IEEE) C37.118.1-2011 and its amendment IEEE Std C37.118.1a-2014 have typically costs that constitute a brake for their diffusion. Therefore, in this paper, the design of a low-cost implementation of a PMU is presented. The low cost approach is followed in the design of all the building blocks of the PMU. A key feature of the presented approach is that the data acquisition, data processing and data communication are integrated in a single low cost microcontroller. The synchronization is obtained using a simple external Global Positioning System receiver, which does not provide a disciplined clock. The synchronization of sampling frequency, and thus of the measurement, to the Universal Time Coordinated, is obtained by means of a suitable signal processing technique. For this implementation, the Interpolated Discrete Fourier Transform has been used as the synchrophasor estimation algorithm. A thorough metrological characterization of the realized prototype in different test conditions proposed by the standards, using a high performance PMU calibrator, is also shown.

Keywords: Power System Measurement; Phasor Measurement Unit; low cost; synchrophasor; voltage measurement; current measurement; synchronization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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