INVESTIGADORES
REY VEGA Leonardo Javier
artículos
Título:
A Novel Modular Positive-Sequence Synchrophasor Estimation Algorithm for PMUs
Autor/es:
FRANCISCO MESSINA; PABLO MARCHI; LEONARDO REY VEGA; CECILIA GALARZA; HECTOR LAIZ
Revista:
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
Editorial:
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Referencias:
Lugar: New York; Año: 2017 vol. 66 p. 1164 - 1175
ISSN:
0018-9456
Resumen:
A novel modular positive-sequence estimation algorithmfor PMUs is described in this paper with a focus on therestrictions imposed by the IEEE C37.118.1-2011 standard. Thefirst stage consists in a three-phase demodulator which allowsus to separate the positive-sequence from the negative-sequencesignal in the frequency domain and to eliminate the zerosequencesignal. The second stage is a pre-filter that mitigatesnoise and interference, thus relaxing the filtering requirementsof the following stage. The suitability of a linear-phase FIR filteris shown and a comparison of single and multistage designsis presented. On the third stage, a digital state-space basedextension of an SRF-PLL is used for tracking of amplitude,phase, frequency and ROCOF. It is shown that a phase predictorinside the loop is required. The fourth stage is a compensationalgorithm which takes into account the narrowband nature ofthe input signal to perform an accurate compensation of thefilter effects on the signal of interest. Analytical properties ofthe system are then presented, providing insight into the mainfactors that affect global performance. Finally, a strict evaluationof the system is presented for both M and P class PMU.