Active Power Filter Design Using Neural Network with a Variable Step-Size

Alejandro Alvarez, Joseph Cherre, Christian Flores, Julien Noel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Harmonic elimination in three-phase power systems due to non-linear loads in electrical grids is an essential topic in power quality nowadays. The rise of electronics and electrical devices increases the sensitivity of the network. The current research approaches this topic by proposing the design and simulation of a neural network with a modified LMS (Least Mean Square) algorithm, including variable step-size in the cost function to achieve faster convergence and overcoming problems in drifting parameters. We use a three-phase active power filter (APF) that relies on a current compensation control for testing purposes. The APF consists of a hysteresis control block and a current-controlled voltage source inverter computed by our enhanced ADALINE (Adaptative Linear Element) neural network. Finally, a comparison is made with another algorithm based on non-variable step size. Results show a 3 % reduction in THD (Total Harmonic Distortion) parameter and a 0.2 s faster response time, concluding the improvement in performance parameters of the power system.

Original languageEnglish
Title of host publicationProceedings of the 7th Brazilian Technology Symposium, BTSym 2021 - Emerging Trends in Human Smart and Sustainable Future of Cities Volume 1
EditorsYuzo Iano, Osamu Saotome, Guillermo Leopoldo Kemper Vásquez, Claudia Cotrim Pezzuto, Rangel Arthur, Gabriel Gomes de Oliveira
PublisherSpringer Science and Business Media Deutschland GmbH
Number of pages10
ISBN (Print)9783031044342
StatePublished - 2023
Event7th Brazilian Technology Symposium, BTSym 2021 - Virtual, Online
Duration: 8 Nov 202110 Nov 2021

Publication series

NameSmart Innovation, Systems and Technologies
Volume207 SIST
ISSN (Print)2190-3018
ISSN (Electronic)2190-3026


Conference7th Brazilian Technology Symposium, BTSym 2021
CityVirtual, Online


  • APF
  • Harmonic distortion
  • Hysteresis
  • Simulink
  • THD
  • Three-phase power system


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