Parametric optimization of control systems by the Etalon Control System assign using the root locus method or the poles and zeros location

The article considers conditions of the developed method of parametric optimization automatic control systems by the Etalon Control System assign inside the complex domain. For that the assign of the root locus branches or the assign of transfer function poles were used. The article considers also the solution of the parametric optimization using the assign of the Etalon Control System by poles and zeros of the transfer function inside the quality domain, which is restricted by lines of the equal stability grade and lines of the permanent damping. An example of PID regulator synthesis using the proposed technique is considered.