Abstract:

Object of study: Automation of control of technological parameters of the process of low-temperature separation (LTS) of moisture from a gas stream. Investigated problem: Improving the efficiency of the separation process when preparing gas for transportation through the consumption network. Development of hardware and software tools that provide automation of the process of regulating flow parameters under conditions of action of time-varying disturbances. Main scientific results: A criterion for controlling the LTS process of a gas flow is formulated. The difference in the dynamic characteristics of the processes occurring during the separation of moisture makes it possible to effectively use a two-circuit control system. The perspective of using extreme regulators (ER) of the process, which is characterized by time delays between the input of the object and its output, is substantiated. The use of ER ensures the stability of the control process under the influence of disturbances in the parameters of the gas flow. In the MATLAB environment, an ER model has been developed, in which a step-type algorithm is used, which provides an increase in the efficiency of the LTS process in accordance with the selected criterion The area of practical use of research results: The scope of use of the research results are automation objects that need continuous automatic tracking of the changing settings of the process parameters regulators. The studies carried out make it possible to use the proposed regulator in various technological installations for drying gas and air (with appropriate identification of the parameters of the object). Innovative technological product: Based on the formed criterion for controlling the LTS process, which is aimed at increasing the efficiency of the LTS process of moisture from a gas flow, a microprocessor-based step-type ER has been developed. Preliminary tests of the regulator show that it can be implemented on commercially available program logic controllers on the market. Scope of application of an innovative technological product: The considered ER can be used to construct control systems for oil and gas transportation processes, which require adaptation and optimization modes to flow parameters. In this case, the need for adaptation is dictated by changes in flow parameters over time.

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