A relay controller with parallel feed-forward compensation for a buck converter feeding constant power loads
Visualitza/Obre
Cita com:
hdl:2117/178824
Tipus de documentText en actes de congrés
Data publicació2019
EditorInstitute of Electrical and Electronics Engineers (IEEE)
Condicions d'accésAccés obert
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Abstract
A simple and efficient analog direct voltage control design for improving the performance and stability of a buck converter feeding constant power loads (CPLs) is the main aim of this article. One of the oldest and most spread approaches is to design a relay control system. In these systems, although the hysteretic relay adds non-linearity to the closed-loop system, an adequate controller design procedure will be presented using the locus of a perturbed relay system (LPRS) technique. This work shows how a designer can apply LPRS technique to a converter plant, in this case a buck converter feeding a mixed linear and constant power load (CPL), using a parallel feed-forward compensator (PFC) to obtain a suitable performance in the closed-loop system. That means to enlarge the range of stable behavior with respect to the power in the CPLs, in comparison with the open-loop case, and to regulate adequately the output voltage of the converter in front of input voltage and load power variations. The simulation results with the converter-load non-linear model show the good performance of the designed controller with respect to the above-mentioned disturbances and perturbations.
Descripció
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CitacióRafiezadeh, R.; Griño, R. A relay controller with parallel feed-forward compensation for a buck converter feeding constant power loads. A: IEEE International Conference on Emerging Technologies and Factory Automation. "2019 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA): proceedings: University of Zaragoza, Zaragoza, Spain: 10-13 September, 2019". Institute of Electrical and Electronics Engineers (IEEE), 2019, p. 445-452.
ISBN978-1-7281-0303-7
Versió de l'editorhttps://ieeexplore.ieee.org/document/8869022
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