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Lyapunov-Based Adaptive Sliding Mode Controller for Active Power Filter
Somayeh Rajabi , Hadi Chahkandi Nejad , Majid Reza Naseh
Abstract:   (315 Views)
In this paper, a Lyapunov-based adaptive 2nd order sliding mode controller is proposed to control the current in an active power filter (APF). The penetration of the APFs has been exponentially increased because of their high flexibility and less resonance problems. Moreover, they can compensate high range of current harmonics and reactive power. The voltage and current control loops have always been an interesting area for researchers since the satisfactory performance of the APF is highly dependent to these control loops. Sliding mode controller (SMC) is a mighty controller when uncertain conditions are considered. However, in order to reduce the chattering- high-frequency switching- and improve the steady state operation, stability, and robustness of the controller, it is usually decided to adaptively tune the gains of the controller. In this paper, a simple-structure adaptive SMC (ASMC) is proposed which can be implemented easily. This ASMC is showed to be stable using the Lyapunov theorem and proved with SIMULINK simulation that has less steady state error, less chattering, and faster dynamic response compared to the conventional SMC.
Keywords: Active Power Filter, Adaptive, Robustness, Sliding Mode Controller, Stability
Full-Text [PDF 1889 kb]   (93 Downloads)    
Type of Study: Research Paper | Subject: Adaptive Control
Received: 2023/06/02 | Revised: 2024/10/19 | Accepted: 2024/09/25
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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Creative Commons License
© 2022 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.