Abstract

In order to improve the dynamic tracking speed and anti-disturbance ability of active power filter (APF) to harmonic current, an improved backstepping active disturbance rejection control (ADRC) strategy is proposed in this paper. An improved linear extended state observer (LESO) is established by exploring the principle of deviation adjustment to ensure that the total disturbance can be estimated in a relatively timely and accurately manner. In addition, based on the idea of backstepping design and the Lyapunov function design control law, a compound control strategy combining backstepping method and ADRC is proposed to improve the control precision and dynamic response speed of the system. In addition, the stability of the proposed control strategy is analyzed. Finally, the effectiveness and superiority of the proposed control strategy are verified by comparative simulation.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.