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In this paper, fractional order proportional integral derivative controller (FOPID) has been designed to get a desired performance form a separately excited Direct Current (DC) motor fed by a buck converter. The robustness of the DC motor speed control is increased using this FOPID controller due to the effect of increased iso-damping response. This increased iso-damping occurs due to the addition...
The PI/PID parameters for first order plus time delay (FOPTD) and second order plus time delay (SOPTD) systems have been obtained by minimizing the cost function of four different time domain performance indices. The stabilizing parameters region and location of PI/PID values have been portrayed in the proportional-integral plane of the controller to study the relative stability. We have shown via...
In this paper an optimum design is proposed for the buck converter pulse width modulator controller, which formulates the value of PID parameters using Linear Quadratic Regulator (LQR) approach. The uniqueness of this approach is that it gives the values of PID parameters with minimum cost function. Simulation and experimental results show the effectiveness of the method. Load disturbance and line...
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