SYNTHESIS OF CONTROL SYSTEMS OF ARTIFICIAL MICROCLIMATE USING RELATIVE HUMIDITY AND THE MOISTURE CONTENT OF AIR AS A PARAMETER OF STABILIZATION
Journal Title: Інформаційні системи, механіка та керування - Year 2015, Vol 0, Issue 13
Abstract
The synthesis of automatic control system (ACS) of industrial conditioner is examined within the framework of the single computer-integrated complex taking into account technological connections between a climatic equipment, that provides for that in space of the state from the present mathematical models of climatic equipment the complex dynamic model of industrial conditioner is got. In order to avoid the additional cooling and repeating of heating of air the modified method of management is realized on the "optimal mode" for that as parameters of adjusting ACS of industrial complexes of artificial microclimate (ICAM) it is suggested to use temperature and moisture content of air. Such approach allows to divide influence between the contours of adjusting of temperature and humidity for the single material stream of air mixture. A synthesis of ACS for an industrial conditioner is conducted, where or relative humidity, or moisture content of air, is used in the contour of adjusting of humidity. Quality of synthesized control system studied on the channels of indignation at equal terms. Basic principles of synthesis modern automatic control system for industrial conditioner are considered for a concrete example, that differ from traditional on such points. Firstly, it is an analysis of dynamics of heat- and mass-transfer of equipment of conditioner with creation of complex models of ICAM as a single object of management in the coordinates of temperature and moisture content of air. Secondly, cross-coupling of contours of adjusting of temperature and humidity did differentiation due to using of temperature and moisture content of air as parameters of adjusting. Thirdly, modern algorithms used for synthesis of optimal ACS ICAM. It is possible to draw conclusion on researches of work, that the use of moisture content of air instead of relative humidity of air in the contour of stabilizing of humidity allows to delimit a cross-coupling between the contours of adjusting of temperature and humidity in two-dimensional ACS ICAM. If in two-dimensional ACS ICAM in the contour of adjusting of humidity used moisture content, the integral indexes of quality get better in 1.5 - 2 times, also diminishes shake and duration of transients. The offered principles can be used by specialists on automation for an analysis and tuning of parameters of control system by industrial conditioners
Authors and Affiliations
Ігор Голінко,, Ірина Галицька
Keywords
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