A comparative study among PID structures applied on a Buck converter control

Luís Fabiano Barone Martins, Ricardo Breganon, Uiliam Nelson Lendzion Tomaz Alves, João Paulo Lima Silva Almeida, Elenilson de Vargas Fortes

Abstract


In this work, a state-space model and control of a DC-DC Buck converter, considering a continuous operating, are presented. A PID controller is considered in the strategy, that considers a low pass filter in the derivative term. The proposed model is validated by comparing it with a switched model. The PID gains are obtained by the Ziegler-Nichols method. In order to improve the system’s performance considering an environment containing high-frequency noises, the modified PID controller is implemented with several configurations.


Keywords


choppers; step down converter; PID controller; Ziegler-Nichols method; average model

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References


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DOI: http://dx.doi.org/10.22149/teee.v4i1.141

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