Automatic control of the process of continuous dealcoholyzation of wine in a vacuum thermoelectric distiller
DOI:
https://doi.org/10.31548/energiya5(69).2023.058Abstract
The work is devoted to the development of a system for automatic control of the process of continuous dealcoholization of wine in a vacuum thermoelectric distiller. A parameterized technological diagram of the process as a control object has been developed, the main parameters subject to regulation have been identified, namely the pressure in the receiver, the temperature of the dealcoholized wine material at the outlet of the evaporator, the temperature in the condenser, and their technological regulations have been determined. The corresponding control actions are defined: the rotation frequency of the vacuum pump, the current of the thermoelectric converter of the evaporator, the current of the thermoelectric converter of the condenser. A structural diagram of the technological process of wine dealcoholization as an object of management has been developed. On the simulation model of a vacuum distiller in the Matlab Simulink environment, experiments were conducted to study the dynamic properties of the main channels of transformations. From the received transient characteristics, the transfer functions of the control channels are determined. The synthesis of a three-dimensional system of automatic control of the temperature of the dealcoholized wine material at the outlet of the evaporator, the temperature in the condenser and the pressure in the receiver was carried out. The initial settings of the regulators were calculated, the parametric optimization of their settings was carried out, and the transient characteristics of the regulated variables under stepped input influences were obtained. The obtained systems of automatic control of the temperature of the dealcoholized wine material at the outlet of the evaporator, the temperature in the condenser and the pressure in the receiver are tested for roughness under the influence of parametric disturbances.
Key words: thermoelectric converter, vacuum distiller, dealcoholization, automatic control system
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