Control design and stability analysis of power converters: the discrete generalized Bode criterion
Fecha
2021Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Identificador del proyecto
Impacto
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10.1109/ACCESS.2021.3063016
Resumen
For the controller design and stability analysis of power electronic converters, the Bode stability
criterion and its subsequent revisions are the most practical tools. However, even though the control of the
power converter is usually implemented in a microprocessor, none of these methods is infallible when applied
to a discrete system. This article therefore proposes a new stability criterio ...
[++]
For the controller design and stability analysis of power electronic converters, the Bode stability
criterion and its subsequent revisions are the most practical tools. However, even though the control of the
power converter is usually implemented in a microprocessor, none of these methods is infallible when applied
to a discrete system. This article therefore proposes a new stability criterion, named the Discrete Generalized
Bode Criterion (DGBC). This method is based on the Nyquist criterion but developed from the open-loop
Bode diagram, evaluated also at 0 Hz and at the Nyquist frequency. The proposed criterion combines the
advantages of the Nyquist and Bode criteria, since it is always applicable and provides an interesting and
useful tool for the controller design process. The method is applied to design an active damping control of
an inverter with LCL filter, showing how the proposed criterion accurately predicts stability, in contrast to
the existing Bode criteria. The theoretical analysis is validated through experimental results performed with
a three-phase inverter and an LCL filter. [--]
Materias
Active damping control,
Control design,
Frequency domain analysis,
LC-filtered voltage
source inverter (VSI),
Stability criteria
Editor
IEEE
Publicado en
IEEE Access 9 (2021) 37840-37854
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza Saila
Versión del editor
Entidades Financiadoras
This work was supported in part by the Agencia Estatal de Investigación (AEI) under Grant
PID2019-110956RB-I00/AEI/10.13039/501100011033, and in part by the Ingeteam Power Technology.