Artículo
Control of Power Converters With Hybrid Affine Models and Pulse-Width Modulated Inputs
Autor/es | Albea-Sánchez, Carolina
Sferlazza, Antonino Gordillo Álvarez, Francisco Gomez-Estern, Fabio |
Departamento | Universidad de Sevilla. Departamento de Ingeniería de Sistemas y Automática |
Fecha de publicación | 2021 |
Fecha de depósito | 2022-10-11 |
Publicado en |
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Resumen | In this paper, hybrid dynamical systems theory is
applied to the analysis and control of switched converters with
Pulse-Width Modulated (PWM) inputs. The system is described
by a state-space model with continuous flows ... In this paper, hybrid dynamical systems theory is applied to the analysis and control of switched converters with Pulse-Width Modulated (PWM) inputs. The system is described by a state-space model with continuous flows and discrete jumps, without averaged equations. The modulation effects are captured in full without using time-dependent signals, by enlarging the state vector to include the PWM waveform generation process. Furthermore, the sample-and-hold mechanism associated with the sampling frequency is also taken into account with this approach. A control law is proposed based on a Lyapunov function candidate. Furthermore, convergence sets and the steady state jitter, inherent to PWM-based controllers, are analyzed estimating limit sets for the augmented state. Consequently, output chattering can be bounded. By using hybrid dynamical system theory, the control designer gains a deeper understanding of the effect of modulation in the closed-loop dynamics, avoiding the problems associated with the use averaged models. Experimental results validate the proposed method. |
Agencias financiadoras | Agence Nationale de la Recherche(Francia) Agencia Estatal de Investigación (AEI) Junta de Andalucía (FEDER) Electronic Components and Systems for European Leadership (ECSEL) |
Identificador del proyecto | ANR-18-CE40-0022-01
DPI2016-75294-C2-2-R PID2019-105890RJ-100 PID2019-109071RB-I00 US-1264655 783158 |
Cita | Albea-Sánchez, C., Sferlazza, A., Gordillo Álvarez, F. y Gomez-Estern, F. (2021). Control of Power Converters With Hybrid Affine Models and Pulse-Width Modulated Inputs. IEEE Transactions on Circuits and Systems I: Regular Papers, 68 (8), 3485-3494. https://doi.org/10.1109/TCSI.2021.3083900. |
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