Abstract
In this paper, a new robust PID controller design approach for uncertain models is presented. The most popular Kharitonov's theorem and stability boundary locus (SBL) method are utilized to design robust controller to achieve the robust stability and performance. The main advantage of this approach is that only four transfer functions are sufficient for the controller design from the family of interval plant transfer functions. Here, voltage mode control of perturbed DC-DC buck converter has been taken as an example for investigation of proposed PID controller performance. The presented theory is verified through simulations in MATLAB/SIMULINK environment and validated through experimental results using DSPACE DS1104.
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