Robust Feedback Linearization Control for DAB Converter feeding a CPL

Marcillo, Kevin Eduardo Lucas; Pagano, Daniel J.; Plaza, Douglas; Vaca—Benavides, David Alejandro; Ríos, Sara J.

doi:10.1016/j.ifacol.2020.12.178

Cited by 9 publications

(4 citation statements)

References 21 publications

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“…The control method depends highly on the mathematical model chosen for the DAB converter description. Feedback linearization control: The feedback linearization control (FLC) 13 is commonly used and easy to implement. The nonlinear term in the dynamic voltage equation is eliminated with the help of linearization in the feedback loop.…”

Section: Other Control Techniquesmentioning

confidence: 99%

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Integral sliding mode based direct power control of isolated DC‐DC converter for improved voltage regulation

Tiwary

Panda

et al. 2022

Circuit Theory & Apps

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This article presents an isolated bidirectional DC‐DC dual active bridge (DAB) converter with an integral sliding mode‐based direct power control (SM‐DPC). Maintaining the dc‐link stability and obtaining a robust control for the converter during sudden load change is a significant challenge. The sliding mode control is well known for its robustness, stability, and tracking performance. The sliding surface based on output voltage error is selected, while the proposed method utilizes the equivalent control approach to generate the power reference for the DAB converter. The direct power control provides an easy control method for the DAB converter as the output voltage depends on the transmitted power, governed by the phase shift angle of two H‐bridges of the converter. The proposed method enhances the steady‐state performance and renders a fast transient response under load change and input voltage variation. Moreover, the method avoids complicated converter modeling and utilizes the voltage dynamic equation and power transfer equation for the controller design. The controller performance and effectiveness are validated with experimental results for a 2‐kW DAB converter.

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Section: Other Control Techniquesmentioning

confidence: 99%

“…The computational process and real‐time implementation are difficult and exhausting. The feedback linearization control 13 requires an accurate system model with decoupled nonlinearities. A sudden load change can make the system unstable as the inaccurate system model will lead to closed‐loop system instability.…”

Section: Introductionmentioning

confidence: 99%

Integral sliding mode based direct power control of isolated DC‐DC converter for improved voltage regulation

Tiwary

Panda

et al. 2022

Circuit Theory & Apps

View full text Add to dashboard Cite

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“…The authors of Ref. [27] proposed novel, robust methodologies for the constant power load operation of a DAB converter. In this paper, the error signal was made from the output voltage.…”

Section: Introductionmentioning

confidence: 99%

A Novel Control Scheme Based on Exact Feedback Linearization Achieving Robust Constant Voltage for Boost Converter

2022

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This paper presents a novel form of feedback linearization control (FBL) of boost-type DC/DC converter: to reach highly accurate output voltage control. Integral action has been inserted into the block diagram of the control scheme. The state-space model of the boost converter is highly nonlinear. Accordingly, the design procedure of the controller is more complex. The paper presents the state-space modeling of the boost converter and details the design procedure of the nonlinear FBL controller step by step. The main goal of this paper is to highlight the importance of the error integrator in the FBL control loop. The proposed method has been tested by a numerical example and compared with an existing and validated two-loop controller. Both the dynamical and steady-state behavior of the examined boost converter performed better than the reference system. The steady-state error of the output voltage is almost eliminated, while the dynamical error decreased to 5% in comparison to the two-loop controller.

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“…En este trabajo se presenta una estrategia de modulación que permite extender el rango de potencia a transferir para bajas cargas, mientras que el controlador propuesto asegura una adecuada respuesta dinámica ante cambios en la carga. En (Lucas et al, 2020) se presenta un control robusto basado en FLC para un sistema en cascada compuesto por un convertidor CPDA alimentando a un convertidor buck. La estrategia propuesta se valida mediante resultados de simulación.…”

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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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Robust Feedback Linearization Control for DAB Converter feeding a CPL

Cited by 9 publications

References 21 publications

Integral sliding mode based direct power control of isolated DC‐DC converter for improved voltage regulation

Integral sliding mode based direct power control of isolated DC‐DC converter for improved voltage regulation

A Novel Control Scheme Based on Exact Feedback Linearization Achieving Robust Constant Voltage for Boost Converter

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

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