Abstract
The paper deals with solving important scientific and technological issues of improving the methods and ways of providing the accuracy of automatic control systems of air supply to the blast furnaces based on scientifically valid and identified by experimental results mathematical model of turbo compressor unit. The main research result of ACS of turbo compressor units of air supply to the blast furnace lies in developing an integrated systemic approach and corresponding normative and methodological providing for developing the precision ACS of air supply. Classification of precision automatic control systems of air supply based on their systematization according to the control principles and algorithms was first performed. Mathematical models of turbo compressor units and electrohydraulic control systems, as well as methods of synthesis of precision controls for electro-hydraulic systems, received further development. The practical significance of results is as follows: -new module block diagrams and ratio for determining the optimum parameters of precision air supply controls were proposed; -specific technical solutions for improving the metrological providing of ACS of air supply were proposed; -the proposed technical solutions allow significant (2-3 times) increasing the accuracy of control of air supply to the blast furnaces. The efficiency and practical utility of the proposed solutions is confirmed by the acts of their introducing at PJCS “Alchevsk Iron and Steel Works”, Alchevsk and research and production enterprise LLC “Energetic”, Kharkov
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