ANALYSIS AND DATA PROCESSING SYSTEMS

Abstract
The article is concerned with the definition of the category of automatic control systems that have the number of control actions exceeding the number of controlled variables in any mode or any combinations of modes. In particular, adaptive systems, systems with dual control or a variable structure, fault-tolerant systems and systems with redundancy can be attributed to this category. A lot of modern aircraft, robots with kinematic redundancy, processing units/stations and chemical production complexes possess these very automatic control systems. The definition of control as a purposeful change of states, properties, characteristics and/or processes in a control plant is provided by the author. The concepts of coordinate, parametric, structural and algorithmic control actions, disturbing effects and controlled variables in automatic control systems are introduced. Further typical tasks of control are systematized and the tasks relating to regulation are specified. This systematization is especially important for educational publications in the automatic control theory. Fourteen possible purposes of using the given redundancy including purposeful changes of fundamental properties of plants and systems of automatic control are listed in the article.

 

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