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

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

Transactions on Environment and Electrical Engineering

2021

Vol. 4, No. 1

25--32

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.

Vector Controlled Induction Motor Drive Using Genetic Algorithm Tuned PI Speed Controller

Dey A., Singh B., Dwivedi B., Chandra D.

Electrical Power Quality and Utilisation. Journal

2009

Vol. 15, iss. 1

3--8

In (his paper, timing and optimization of the proportional and integral (PI) gains of speed controller is achieved using Genetic Algorithm (GA) for improving the performance of the induction motor drive because higher the quality of the controller lesser is the ripples produced in the torque and speed responses. The developed GA program has multi-objective minimization functions. The optimized values of PI gains are incorporated in vector controlled induction motor model for performance analysis during sudden disturbances like speed reversal, load application and load removal. GA tuning method outstandingly surpasses the conventional and most widely used Ztegler Nichols Tuning method. GA tuned PI controller reduces the peak overshoot almost by 60% and quickly brings the system to steady state value. The simulated results obtained from GA tuned PI controller can be realized and validated through experimental results in future work.