The Design of a Low Cost Phasor Measurement Unit

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...

Full description

Saved in:
Bibliographic Details
Published in:Energies (Basel) 2019, Vol.12 (14), p.2648
Main Authors: Antonio Delle Femine, Gallo, Daniele, Landi, Carmine, Luiso, Mario
Format: Article
Language:English
Subjects:
Accuracy
Algorithms
Building design
Closed loops
Concentrators
current measurement
Data acquisition
Data communication
Data processing
Diffusion
Digital signal processors
Electric potential
Electric power systems
Electricity distribution
Fourier transforms
Global positioning systems
GPS
Information processing
Low cost
Measuring instruments
Phasor Measurement Unit
Phasors
Physics
Power
Power System Measurement
Publishing
Queues
Resampling
Rollover
Sampling
Signal processing
Smart grid technology
Structural hierarchy
Synchronism
Synchronization
synchrophasor
Ticks
Universal time
Voltage
voltage measurement
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1996-1073
1996-1073
DOI:10.3390/en12142648