Title: Performance investigation of reweighted zero attracting LMS-based dynamic voltage restorer for alleviating diverse power quality problems

Authors: Humeera Altaf; Abdul Hamid Bhat

Addresses: Department of Electrical Engineering, National Institute of Technology Srinagar, J&K, India ' Department of Electrical Engineering, National Institute of Technology Srinagar, J&K, India

Abstract: Dynamic voltage restorer (DVR) has proven to be the most coherent, effective and economic answer to voltage-based power quality problems. This work details the design, investigation and experimental validation of reweighted zero-attracting least mean square (RZA-LMS) based DVR addressing the issues like voltage sag, voltage swell, voltage harmonics, voltage imbalance and combination of these. The RZA-LMS based control algorithm is proposed for producing reference voltage signals. The features of proposed algorithm include finite-time convergence, simplicity and improvement in the robustness of the system against varying parameters. The viability of DVR controller is assessed by employing MATLAB/Simulink and Simpowersystem software. The performance of proposed DVR is experimentally investigated using digital real-time simulator.

Keywords: power quality problems; dynamic voltage restorer; DVR; reweighted zero-attracting least mean square; RZA-LMS; compensation technique.

DOI: 10.1504/IJPELEC.2023.131182

International Journal of Power Electronics, 2023 Vol.17 No.4, pp.385 - 405

Received: 04 Jun 2021
Accepted: 21 Jan 2022
Published online: 01 Jun 2023 *

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