Nonlinear Control of a Two-Stage Single-Phase DC–AC Converter

Jorge, Sebastián Gómez; Solsona, J.; Busada, Claudio A.

doi:10.1109/jestie.2022.3151003

Cited by 7 publications

(2 citation statements)

References 20 publications

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“…For instance, these converters are used for integrating different kinds of power sources to the dc microgrid [1,2]. Other times, they are combined with dc-ac converters for obtaining ac power sources [3,4]. There are many reasons for the increase in the number of applications.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Nonlinear Control of dc–dc Converters for Microgrid Applications

Solsona

Jorge²,

Busada³

2022

Sustainability

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This paper proposes a high-performance control strategy for dc–dc converters supplying combined loads (constant current/power, and/or linear loads). This strategy combines a feedback law with a feedforward compensation. The feedback law is based on full feedback linearization, which guarantees that zero dynamics are avoided. To design a single controller for the three basic converter topologies (i.e., buck, boost and buck–boost), a unified model for these converters is introduced. From the resulting combined control law, the specific control law for each type of converter can be obtained by setting three constant coefficient to 0 or 1. The feedforward compensation is based on the estimated values of the load obtained via a nonlinear observer. The main advantage of this unified approach is that it is implemented by using a single algorithm which can be executed in a dedicated hardware, for instance, a single integrated circuit, providing a unified solution for the control of the mentioned topologies. The good performance of the proposed scheme is verified through simulations and tested via experimental application cases, concluding that this is a good unified solution to control dc–dc converters used in microgrid applications.

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Section: Introductionmentioning

confidence: 99%

Modeling and Nonlinear Control of dc–dc Converters for Microgrid Applications

Solsona

Jorge²,

Busada³

2022

Sustainability

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“…En (Solsona et al, 2015) y (Arora et al, 2019) se utiliza esta técnica para controlar la tensión de salida de convertidores CC-CC buck y boost, respectivamente. La característica adicional de esta técnica de permitir diseñar controles de manera desacoplada en sistemas multivariables, ha generado que su uso se haya extendido a convertidores modulares multinivel (Yang et al, 2018), transformadores de estado sólido Sun et al (2021) y convertidores CC-CA de dos etapas (Gomez Jorge et al, 2022).…”

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Control basado en linealización por realimentación de un convertidor CC-CC con puentes duales activos alimentando una carga de potencia constante

Rodríguez¹,

Garrido²,

Núñez³

et al. 2023

Rev. iberoam. autom. inform. ind.

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Este trabajo presenta una estrategia de control basada en la técnica de linealización por realimentación para regular la tensión a bornes de una carga de potencia constante alimentada por un Convertidor con Puentes Duales Activos (CPDA). Se propone utilizar un cambio de coordenadas no lineal correspondiente a la suma de las energías en los capacitores de puertos del CPDA para evitar que existan dinámicas internas que pueden inestabilizar al sistema. Se presentan resultados de simulación y experimentales que permiten validar la estrategia de control propuesta, a partir de los cuales se puede verificar una buena respuesta dinámica y en régimen permanente del sistema ante variaciones significativas en la potencia transferida. En forma adicional, mediante un análisis en el plano de fase se estudia la estabilidad del control para diferentes condiciones iniciales de las tensiones en los puertos del convertidor. A partir de los resultados de este análisis, se puede corroborar que para una determinada potencia a transferir, existe una tensión inicial mínima sobre la carga por encima de la cual el sistema es estable.

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Continuous switching sliding mode controller design for single-phase UPS inverter circuit

Yan

2024

Electr Eng

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Nonlinear Control of a Two-Stage Single-Phase DC–AC Converter

Cited by 7 publications

References 20 publications

Modeling and Nonlinear Control of dc–dc Converters for Microgrid Applications

Modeling and Nonlinear Control of dc–dc Converters for Microgrid Applications

Control basado en linealización por realimentación de un convertidor CC-CC con puentes duales activos alimentando una carga de potencia constante

Continuous switching sliding mode controller design for single-phase UPS inverter circuit

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