NDLI: Adaptive super-twisting sliding mode control of three-phase power rectifiers in active front end applications

Content Provider	IET Digital Library
Author	Luo, Wensheng Zhao, Tongyu Li, Xiaolei Wang, Zhenhuan Wu, Ligang
Abstract	A robust control approach for three-phase two-level grid-connected power converters using an adaptive super-twisting algorithm (ASTA) is studied. A cascaded structure of the proposed control method is employed, which consists of two control loops, the dc-link capacitor voltage regulation loop (outer loop) and the grid phase current tracking loop (inner loop). In the outer control loop, a proportional controller using H ∞ technique is considered, which is designed to regulate the dc-link capacitor voltage to some desired value. An extended state observer used to asymptotically estimate the external disturbance is integrated into the outer control loop. For the inner control loop, two ASTA-based controllers are implemented that force the grid phase currents to their desired values in finite time. Lyapunov analysis is provided to show the finite time convergence of the closed-loop system. With the help of ASTA, a priori knowledge of the upper bounds of the derivative of the disturbances is not required. Illustrative simulation results in comparison with the linear proportional–integral control method are provided to demonstrate the effectiveness and robustness of the proposed ASTA, in the presence of load variation and parametric uncertainty.
Starting Page	1483
Ending Page	1490
Page Count	8
ISSN	17518644
Volume Number	13
e-ISSN	17518652
Issue Number	Issue 10, Jul (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-cta/13/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-cta.2018.6141
Journal	IET Control Theory & Applications
Publisher Date	2019-03-29
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Active Front-end Application Adaptive Super-twisting Sliding Mode Control ASTA-based Controller Closed Loop System Closed-loop System Control Loops Control of Electric Power System Control System Analysis Control System Synthesis Current Control Dc-link Capacitor Voltage Regulation Loop Desired Value Electric Current Control Grid Phase Current Grid Phase Current Tracking Loop Inner Control Loop Inner Loop Linear Proportional–integral Control Method Lyapunov Method Multivariable Control System Nonlinear Control System Observers Outer Control Loop Outer Loop Power Converter Power Grid Power Supplies to Apparatus Proportional Controller Robust Control Robust Control Approach Stability in Control Theory Super-twisting Algorithm Synthesis Method Three-phase Power Rectifier Three-phase Two-level Grid Variable Structure System Voltage Control
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Control and Systems Engineering Human-Computer Interaction Electrical and Electronic Engineering Computer Science Applications

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