Numerical and experimental validation with bifurcation diagrams for a controlled DC–DC converter with quasi-sliding control
Journal Title: TecnoLógicas - Year 2018, Vol 21, Issue 42
Abstract
This paper presents a stability analysis of a buck converter usinga Zero Average Dynamics (ZAD) controller and Fixed-Point Induction Control (FPIC) when the control parameter 푁, the reference voltage υref, and the source voltage 퐸are changed. The study was based ona previous analysis in which the control parameter was adjusted to 푁=1and the parameter 퐾푠was changed during the simulation, finding the stability zone and regions with chaotic behavior. Thus, this new study presents the transient and steady-state behaviors and robustness of the buck converter when the control parameter 푁changes. Moreover, numerical simulation results are compared with experimental observations. The results show that the system regulates the output voltage with low error when the voltage is changed in the source E. Besides, the voltage overshoot increases, and the settling time decreases when the control parameter 푁is augmented and the control parameter 퐾푠is constant. Furthermore, the buck converter controlled by ZAD and FPIC techniques is effective in regulating the output voltage of the circuit even when there are two delay periods and voltage input disturbances.
Authors and Affiliations
Fredy E. Hoyos, John E. Candelo-Becerra, Nicolás Toro
Keywords
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- EP ID EP336624
- DOI 10.22430/22565337.785
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