By Topic

Real-Time Power System Phasors and Harmonics Estimation Using a New Decoupled Recursive-Least-Squares Technique for DSP Implementation

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Sadinezhad, I. ; Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales, Sydney, NSW, Australia ; Agelidis, V.G.

This paper presents the mathematical basis to restructure the recursive-least-squares (RLS) technique for real-time implementations on digital signal processors (DSPs). The proposed decoupled RLS (DRLS) technique is adapted for real-time estimation of phasors and harmonics. The comparison between the proposed technique and the conventional RLS one shows considerable improvement in terms of reducing the turnaround time on two different off-the-shelf research and development DSP platforms. The DRLS technique also shows better computational efficiency than the adaptive linear combiner (ADALINE) and recursive discrete Fourier transform (RDFT) techniques in direct estimation of amplitude and phase angle when implemented on DSPs. The DRLS technique performance is also superior to that of the ADALINE and RDFT techniques under the presence of noise, subharmonics, and frequency variations. The performance of the proposed technique has been evaluated by simulations using MATLAB-Simulink and through real-time experiments. Selected results presented in this paper confirm the DSP turnaround time improvementand satisfactory performance of the proposed technique.

Published in:

Industrial Electronics, IEEE Transactions on  (Volume:60 ,  Issue: 6 )