id: 33723
Title: An Intelligent Adaptive DC Voltage Stabilization with a Digital Control Contour
Authors: Tsyrulnyk S., Tromsiuk V., Borodai Y., Metelytsya A., Nepiyvoda M.
Keywords: Digital control contour, ADC, Current-steering DAC, Control element, Digital control device
Date of publication: 2023-08-23 10:00:01
Last changes: 2023-08-23 10:00:01
Year of publication: 2023
Summary: This paper provides an analysis of the operation of the DC voltage stabilization system with a digital control contour, which uses a linear dependence between the opening pulse duration of the power control element and the output voltage deviation from the nominal one. The work presents the structural and functional diagrams of the voltage stabilization system with a digital control contour. The paper conducted simulation modeling of the proposed schemes in the Multism. The design features and technical parameters of linear and pulsed series stabilizers analyzed the principle of step-down linear step-down DC voltage stabilization with pulsed control used as a basis. DC voltage stabilization system are broadly used in DC microgrids to provide a constant DC voltage for generation and storage components. Changing of load condition affects the quality of voltage in the DC voltage stabilization system. In such condition, an efficient DC voltage stabilization system is required to ensure the proper operation of the converter. Because of the research, a structural diagram of the DC voltage stabilization system with a digital control circuit was built. Based on the constructed structural diagram, the functional schemes of DC voltage stabilization were developed: 1. DC voltage stabilization system based on a 4-bit current-steering DAC, with reference voltage Vref=Vin; 2. DC voltage stabilization system based on an 8-bit current-steering DAC, with reference voltage Vref=Vin; 3. DC voltage stabilization system is based on a 4-bit current-steering DAC, with a reference voltage of Vref=VCC, and used a Wilson current mirror. Simulation modeling of the developed circuits showed the expected results of voltage stabilization using a digital control circuit. In particular, a low level of pulsations was observed without using a filter and a soft start when adjusting the output voltage.
URI: http://socrates.vsau.edu.ua/repository/getfile.php/33723.pdf
Publication type: Статті Scopus
Publication: CEUR Workshop Proceedings. 2023. Vol. 3403. P. 248-262. URL: https://ceur-ws.org/Vol-3403/paper20.pdf
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Published by: Адміністратор
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