Aug 2026· 2026 IEEE Colombian Conference on Applications of Computational Intelligence (ColCACI)· pp. 1-6· 0 citations· 13 references
Abstract
This paper proposes a state-feedback control strategy based on linear matrix inequalities (LMIs) to regulate the output voltage of a SEPIC converter. First, the small-signal model of the converter is derived by linearizing the state-space representation averaged around its steady-state operating point. Next, the controller design is formulated as an LMI optimization problem, which allows the state feedback gains to be calculated while ensuring closed-loop stability and imposing constraints on pole placement, control effort, and disturbance attenuation. The resulting LMIs are solved using the MATLAB LMI Toolbox to meet the desired closed-loop performance specifications. To evaluate the effectiveness of the proposed method, its performance is compared with that of a conventional linear quadratic regulator (LQR). Both controllers are evaluated in terms of transient response and output voltage regulation in the presence of variations in input voltage and load. Simulation results using MATLAB are presented to validate the theoretical study.
This paper presents the synthesis of a robust LMI-based controller for a boost converter supplying a constant power load (CPL). The converter connects a DC bus to a CPL requiring regulated output voltage. In the absence of control, the system may exhibit unstable behavior due to the destabilizing characteristics of the...
C. A. Torres-Pinzón, Óscar Danilo Montoya Giraldo, Juan Diego Pulgarín Rivera· Scientia Et Technica· 0 citations
In this paper, a design of an optimal discrete PI controller for a DC-DC boost converter that fed a PMDC motor drive system is presented. The small signal model (SSM) is extracted and validated theoretically and experimentally. The system transfer function has a right half plane zero (RHPZ) which adversely affects the...
S. A. Deraz, Fahd Alharbi· Electronics· 0 citations
In the present study, a novel sliding mode controller (SMC) is proposed for robust and reliable voltage regulation in modern power systems. The proposed SMC is designed for a nonlinear model of an automatic voltage regulator (AVR) system having limiters in line with IEEE recommendations. The mathematical derivation of...
Selva Bal, Murat Furat, Yakup Hameş· Electrica· 0 citations
This study focuses on the development of robust control strategies for a photovoltaic system integrated with a grid-connected quazi-Z-source inverter (qZSI). Conventional current control methods, such as proportional–integral (PI) controllers, often fail to maintain satisfactory performance under system uncertainties....
V. C, D. Palanivel, Sathishkumar Ramasamy et al.· Engineering Research Express· 0 citations
This paper presents a simulation and comparison of direct power control (DPC) and the new backstepping (BS) control for a three-phase PWM rectifier. The objective is to evaluate these techniques in achieving high-performance grid integration, targeting the absorption of sinusoidal current, maintaining a unity power fac...
Slimane Chiboub, M. Khafallah, J. Lamterkati· International Journal of Pow...· 0 citations
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