Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Synthesis and study of robust digital control multiply variable objects using a complex criterion V.S. KUDRYASHOV A.V. IVANOV A.A. GAYDIN Improving the quality of management of objects with strong internal bonds under disturbances may multiply by the synthesis system. However, in a non-stationary dynamic characteristics of the synthesis of the control part is quite a challenge. In this regard, of particular interest is the use of robust control, which along with the quality control takes into account the stability margin of the system. In the paper the problem of the synthesis and study of discrete dynamical model of robust digital control system multiply the process of obtaining ammonia. A combined test, which takes into account the integrated assessment and safety factor multiply management system, based on which we calculated the control of the system, including major digital controllers using numerical optimization method. The effect of weighting the criteria, taking into account the ratio of the integrated assessment and the safety factor, the nature of changes in the dynamic properties of the system. Also shown the boundary range of the parameters of the object model to the sustainability of the system. Illustrates the point defined configuration parameters of digital controllers for optimal ratio is a robust test. Analysis of the results leads to the conclusion that the proposed approach to the synthesis of digital control systems related object based on systematic criteria ensures high quality and stability in a wide range of parameters of the model object. Keywords: the synthesis of ammonia, robust control, multiply connected digital control system, non stationary object, stability margin. Contacts: E-mail: kudryashovvs@mail.ru Pp. 10-17.