Industrial Automatic Control Systems and Controllers Annotation << Back Analysis and Synthesis of Dynamic Management Objects with Interval Parameters and Lag E.V. Lubentsova In this paper we study the interval system of a linear PID controller and the control object with interval-uncertain parameters and time-delay. When developing procedures for the synthesis of robust controller parameters used principle of planning a two-level factorial experiment, the criterion of maximum degree of stability and the principle of guaranteed dynamics. The methodology is based on necessary and sufficient conditions connecting the interval limit values ​​for the coefficients of the characteristic equation of the system with maximum degree of stability. The obtained conditions are based on the proven assertions. In this paper, an example of the analysis and synthesis of robust control systems biotechnological object. Keywords: interval system; robust control; PID controller; degree of stability; biotechnological object. Contacts: E-mail: lubenchov@nti.ncstu.ru Pp. 11-19.