In this thesis, the controlling algorithm for the unbalanced rotor is developed. First, the rotor dynamics and equations of motion for unbalanced rotor are presented. Controlling algorithm is based PID controllers that are commonly used in industrial applications. The solution of equations of motion is obtained using numerical integration. Instead of obtaining experimental s data on a real rotor, the controlling algorithms were tested based on simulated signals. The performance of several controlling algorithms was analyzed and the main findings are presented.