UDE-based robust nonlinear control of the buck-boost power converter

Article Engineering, Multidisciplinary

Sliding Mode Control Based on Linear Extended State Observer for DC-to-DC Buck-Boost Power Converter System With Mismatched Disturbances

Jesus Linares-Flores et al.

Summary: This article presents a control strategy that combines sliding mode control with a linear extended state observer to regulate the output voltage of a power converter system. The proposed approach improves system performance by observing and compensating for unknown disturbances.

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS (2022)

Add to Collection

Article Automation & Control Systems

A robust nonlinear PI-type controller for the DC-DC buck-boost power converter

Mizraim Martinez-Lopez et al.

Summary: In this study, a novel Lyapunov function-based robust nonlinear proportional-integral (PI)-type controller is proposed for regulating the output voltage of a DC-DC inverting buck-boost power converter operating in continuous conduction mode (CCM). The control scheme ensures global asymptotic stability of the closed-loop system even with parameter uncertainty. The closed-loop trajectories are analyzed using the Lyapunov method and LaSalle's invariance principle. The proposed scheme demonstrates robustness to additive disturbances and provides simple gain tuning guidelines. Real-time experiments support the theoretical results, and experimental tests show that the proposed PI-type control design performs consistently well under line and load disturbances.

ISA TRANSACTIONS (2022)

Add to Collection

Article Engineering, Electrical & Electronic

Adaptive Sliding-Mode Control of a Novel Buck-Boost Converter Based on Zeta Converter

Chok-You Chan

Summary: The paper presents an adaptive sliding-mode control method for a high efficiency non-isolated buck-boost converter based on Zeta converter. The controller uses the inductor current error and a proportional term to generate the control action, with the reference inductor current calculated using the estimated load conductance. The stability analysis confirms the effectiveness of the proposed controller, which is further validated by experimental results.

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS (2022)

Add to Collection

Article Automation & Control Systems

Voltage Regulation in Buck-Boost Converters Feeding an Unknown Constant Power Load: An Adaptive Passivity-Based Control

Carlos A. Soriano-Rangel et al.

Summary: The paper discusses the application of dc-dc buck-boost converters in dc voltage regulation and addresses the output voltage regulation problem in feeding a Constant Power Load (CPL). By constructing a feedback controller and introducing a parameter estimator, the paper effectively solves the CPL issue and ensures the stability and reliability of the system.

IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY (2021)

Add to Collection

Article Automation & Control Systems