A Comparative Study of Terminal and Conventional Sliding-Mode Startup Peak Current Controls for a Synchronous Buck Converter
Autor: | Nuria Masclans, Domingo Biel, Victor Repecho |
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Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial, Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, Universitat Politècnica de Catalunya. ACES - Control Avançat de Sistemes d'Energia |
Rok vydání: | 2021 |
Předmět: |
Informàtica::Automàtica i control [Àrees temàtiques de la UPC]
Sliding mode control Computer science Buck converter Convertidors commutats 020209 energy 020208 electrical & electronic engineering Terminal dynamics Energy Engineering and Power Technology 02 engineering and technology Electric current converters Power (physics) Microcontroller Control theory Load regulation Power electronics Limit (music) 0202 electrical engineering electronic engineering information engineering Synchronous buck converter Electrònica de potència Convertidors de corrent elèctric Transient (oscillation) Electrical and Electronic Engineering Voltage |
Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
ISSN: | 2168-6785 2168-6777 |
DOI: | 10.1109/jestpe.2019.2960924 |
Popis: | © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works An alternative to the linear control techniques, which are based on small signal averaged models, is the sliding mode control. That method uses instantaneous models of the switched power converter to design robust controllers. The large signal modelling allows not only to control the system behaviour around the steady-state, but also the start-up transient. This paper presents the design of two sliding mode controllers that regulate the output voltage of a synchronous buck converter and limit the start-up peak current. A terminal sliding mode control is designed and compared with a first order sliding mode control, which is called here as a conventional sliding mode control. The study shows that the terminal sliding mode control presents lower transient time to reach the final value as compared to the conventional one because of its finite time convergence property. It also achieves better performance in terms of line and load regulation. A power converter prototype of 150 W / 100 kHz is assembled and both sliding mode controllers are digitalized and implemented in a microcontroller. Numerical simulations and experimental results validate the proposal. |
Databáze: | OpenAIRE |
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