Investigating the Frequency Characteristics of Pulse-Width DC/DC Converters with the Target-Oriented Control

The issues of ensuring the stability of pulse-width converters are examined, taking into consideration the dynamic nonlinearities of these systems. An automatic control system for a full-bridge DC/DC converter with a target-oriented control is presented. To estimate the coordinates of the desired mo...

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Bibliographic Details
Published in2022 International Russian Automation Conference (RusAutoCon) pp. 246 - 251
Main Author Andriyanov, A. I.
Format Conference Proceeding
LanguageEnglish
Published IEEE 04.09.2022
Subjects
Automatic frequency control
bifurcation
dynamics structural model
Frequency conversion
IIR filters
IIR-filter
moving average
Nonlinear dynamical systems
nonlinear dynamics
Process control
pulse-width converter
Stability analysis
Target-oriented control
Time-frequency analysis
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Summary:The issues of ensuring the stability of pulse-width converters are examined, taking into consideration the dynamic nonlinearities of these systems. An automatic control system for a full-bridge DC/DC converter with a target-oriented control is presented. To estimate the coordinates of the desired mode fixed point, a moving average IIR filter is applied, which can be implemented using digital control systems. A structural dynamic model of an open-loop automatic control system is developed, which allows studying Bode diagrams to assess the stability margin in the phase of an open-loop system. The control system effectiveness for nonlinear dynamic processes based on the target-oriented control, built using moving average IIR filters is shown.
DOI:10.1109/RusAutoCon54946.2022.9896391