Suboptimal Backstepping Controller Design for Controlling Shunt Active Power Filter to Compensate Harmonics Using the Whale Optimization Algorith

Articles in Press

Document Type : Original Article

Authors

1 Department of Electrical Engineering - Power, Faculty of Electrical and Computer Engineering, University of Kashan, Kashan, Iran

2 Department of AAU Energy, Aalborg University, Aalborg, Denmark

Abstract

This article discusses the use of the whale optimization algorithm and the integral time-absolute error criterion (ITAE) to adjust the optimal parameters of the backstepping controller. The goal is to improve the performance of active power filters based on LCL filters in four-wire distribution systems. By using a shunt active power filter with the proposed method at the point of common coupling (PCC), the approach minimizes harmonics in the grid current and makes it more sinusoidal. In most references, the selection of backstepping controller coefficients is based on trial and error. The purpose of this article is to find the optimal parameters of the backstepping controller using the whale optimization algorithm, known for its high accuracy and convergence speed. By minimizing the selected error criterion, the algorithm optimally determines the backstepping parameters, significantly improving the controller's performance and ensuring the proper filtering of grid current harmonics. The effectiveness of the proposed method is demonstrated through simulations of different scenarios. The results show that the proposed method performs very well in improving power quality in distribution systems.

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Soft Computing Journal

Articles in Press, Accepted Manuscript
Available Online from 16 September 2024

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History

  • Receive Date: 18 June 2024
  • Revise Date: 06 August 2024
  • Accept Date: 14 September 2024

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