A Phasor Estimation Algorithm based on Hilbert Transform for P-class PMUs
Phasor measurement units (PMUs) play an important role in many applications of power systems. In order to ensure a reliable performance, the phasor estimation algorithm has to satisfy a set of requirements stated in the IEEE Standard C37.118.1, which establishes the test conditions and requirement...
Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
Stefan cel Mare University of Suceava
2018-08-01
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Series: | Advances in Electrical and Computer Engineering |
Subjects: | |
Online Access: | http://dx.doi.org/10.4316/AECE.2018.03013 |
Summary: | Phasor measurement units (PMUs) play an important role in many applications of power systems. In order
to ensure a reliable performance, the phasor estimation algorithm has to satisfy a set of requirements
stated in the IEEE Standard C37.118.1, which establishes the test conditions and requirements for
steady-state and dynamic conditions. There, two classes of performance, P and M, can be found.
In general, P-class is intended for applications that require fast response and M-class is used when
greater precision is necessary. In this paper, a novel algorithm based on Hilbert transform for
phasor estimation in compliance with the IEEE standard C37.118.1 for P-class is proposed. Advantages
of the proposal are a fast response and a low computational burden due to the HT implementation as
a low-order filter of one cycle. Further, two low-complex strategies of compensation are proposed.
The proposal is validated using all the test conditions specified in the IEEE Standard C37.118.1.
Besides that, real voltage and current signals of an electrical system are analyzed. The obtained
results demonstrate that the new proposal can meet all the requirements for P-class performance. |
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ISSN: | 1582-7445 1844-7600 |