SEPIC converter: modeling and control considering internal energy losses
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This paper describes a procedure for designing a 2-kilowatt SEPIC converter controller without ideal devices, to be used in industrial applications. A small-signal model can be constructed from a commuted converter in different operation modes. Subsequently, a transfer function is determined to design the analog controller, ensuring a settling time of 25 ms. The results around the operation point are shown using MATLAB®/SIMULINK®, and perturbations are applied to the converter output and the DC input voltage to evaluate performance in the time domain. The designed controller effectively meets the design specifications for disturbances near the operating point.
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Accepted 2024-02-12
Published 2024-02-26
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