Robust input–output sliding mode control of the buck converter

Sira‐Ramírez, Hebertt; Luviano‐Juárez, Alberto; Cortés‐Romero, John

doi:10.1016/j.conengprac.2012.03.008

Cited by 34 publications

(21 citation statements)

References 10 publications

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“…Regarding the Buck converter matematical model used herein, it should be remarked that despite being a model where energy losses are not considered it has been extensively used in the literature [23,28,30,35,42]. The reason is its simplicity and relatively good accuracy, in comparison with more complex models that consider the internal resistance of the inductor, the model of the Shockley diode [55], and the model of the Ebers-Moll transistor [56].…”

Section: Dc/dcmentioning

confidence: 99%

“…In that work, the simulations included controller implementation through a Σ-Δ-modulator to generate the switched signals. Another important contribution has been recently provided by Sira-Ramírez et al in [42], where they proposed an inputoutput based feedback controller for the sliding mode control of linear controllable switched systems. The closed loop system was led towards a robust sliding mode behavior on a state naturally represented by a Σ-Δ-modulator.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of an Average Controller for a DC/DC Converter via Either a PWM or a Sigma-Delta-Modulator

Silva‐Ortigoza

Carrizosa-Corral²,

Gálvez-Gamboa³

et al. 2014

Abstract and Applied Analysis

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Sliding mode control is a discontinuous control technique that is, by its nature, appropriate for controlling variable structure systems, such as the switch regulated systems employed in power electronics. However, when designing control laws based on the average models of these systems a modulator is necessary for their experimental implementation. Among the most widely used modulators in power electronics are the pulse width modulation (PWM) and, more recently, the sigma-delta-modulator (Σ-Δ-modulator). Based on the importance of achieving an appropriate implementation of average control laws and the relevance of the trajectory tracking task in DC/DC power converters, for the first time, this research presents the assessment of the experimental results obtained when one of these controllers is implemented through either a PWM or aΣ-Δ-modulator to perform such a task. A comparative assessment based on the integral square error (ISE) index shows that, at frequencies with similar efficiency, theΣ-Δ-modulator provides a better tracking performance for the DC/DC Buck converter. In this paper, an average control based on differential flatness was used to perform the experiments. It is worth mentioning that a different trajectory tracking controller could have been selected for this research.

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Section: Dc/dcmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of an Average Controller for a DC/DC Converter via Either a PWM or a Sigma-Delta-Modulator

Silva‐Ortigoza

Carrizosa-Corral²,

Gálvez-Gamboa³

et al. 2014

Abstract and Applied Analysis

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“…These techniques have been used in [28] considering feedback switching conditions of the form σ = x j − K = 0, expressed in terms of a suitable state variable x j that is desired to be regulated at a suitable level K. They have been employed in output voltage regulation of DC-DC switching converters in early works such as in [29][30][31][32][33] and also in some recent contributions to this field such as [34][35][36][37][38]. In [39], SMC theory has been applied to control paralleled inverters of the buck type and in [40,41].…”

Section: Introductionmentioning

confidence: 99%

Design of Current Programmed Switching Converters Using Sliding-Mode Control Theory

et al. 2018

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This paper presents a comprehensive approach to analyze and design the voltage and current loops of switching DC-DC converters by using sliding-mode control theory. The approach is interchangeably applied to switching converters under current-programmed control with both fixed and variable frequency modulation. An ideal sliding-mode dynamics model is then obtained together with its circuit schematic representation that can be used for designing the output voltage compensator, as well as to predict the large signal behavior such as during start-up and under large disturbances. Simulations and experimental measurements illustrate the theoretical approach for two different examples of switching converters.

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“…Ya se reportan resultados experimentales de la utilización de la técnica GPI para el manejo de dinámicas no modeladas e incertidumbre en los parámetros con excelentes resultados en su desempeño [14]- [17], que dieron motivación a esta investigación y garantía de los resultados esperados con este trabajo. Este trabajo forma parte de una serie de trabajos, aun preliminares, que buscan explorar capacidades y funcionalidades de la combinación de ambas técnicas con el fin de alcanzar sistemas de control que sean capaces de gestionar adecuadamente la incertidumbre/variación de planta.…”

Section: Introductionunclassified

Control GPI-repetitivo para sistemas lineales con incertidumbre/variación en los parámetros

Cortés‐Romero

Ramos-Fuentes

2015

TecnoL.

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El problema de control de sistemas lineales para seguimiento o rechazo de señales periódicas con incertidumbre / variación paramétrica ha sido considerado desde varias perspectivas. Este trabajo presenta una propuesta de combinación de la técnica de control repetitivo con la técnica de control Proporcional Integral Generalizado (GPI). La adecuación y combinación de estas técnicas se realiza en un contexto de tiempo discreto. El control repetitivo se presenta como una técnica, basada en el principio del modelo interno, apta para el rechazo o seguimiento de señales periódicas. Por otra parte, la técnica de control GPI es una estrategia de diseño de controladores robustos lineales capaces de gestionar adecuadamente tanto perturbaciones exógenas de tipo estructurado así como la incertidumbre / variación de planta. Se plantea que el control GPI garantice unas condiciones de estabilidad y desempeño adecuadas para el correcto funcionamiento del control repetitivo sobre plantas lineales que refieran incertidumbre / variación paramétrica. Se presentan adicionalmente análisis de estabilidad y desempeño en términos de la respuesta en frecuencia tomando diferentes escenarios de incertidumbre en los parámetros y graficando las condiciones de estabilidad. Complementariamente, se realizan comparaciones con estrategias clásicas a nivel del control complementario, que han resultado efectivas para problemas de control similares, y se ilustran los análisis por medio de simulaciones.

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Robust input–output sliding mode control of the buck converter

Cited by 34 publications

References 10 publications

Assessment of an Average Controller for a DC/DC Converter via Either a PWM or a Sigma-Delta-Modulator

Assessment of an Average Controller for a DC/DC Converter via Either a PWM or a Sigma-Delta-Modulator

Design of Current Programmed Switching Converters Using Sliding-Mode Control Theory

Control GPI-repetitivo para sistemas lineales con incertidumbre/variación en los parámetros

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