Chaos phenomenon in the DC-DC switching converters

Zhang, Yumei; Qin, Hong; Qu, Yanhua; Wu, Jian

doi:10.1109/wcica.2012.6358211

Cited by 6 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As an important part of photovoltaic power generation system, circuit parameters of the DC-DC converter may vary with the influence of external factors such as solar illumination 1 . Based on previous studies, when the circuit parameters of DC-DC converter are changed to a certain extent, the system will produce a series of complex nonlinear dynamic behaviors such as bifurcation and chaos [2][3][4] . These nonlinear phenomena will cause great harm to the photovoltaic power generation system.…”

Section: Introductionmentioning

confidence: 99%

Cubic variance negative feedback chaos control for the buck-boost converter

Jiang,

Li,

Wei

2023

5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023)

View full text Add to dashboard Cite

The piecewise linear mathematical model of the current-mode-controlled Buck-Boost (CMCBB) converter in continuous current mode (CCM) is established. By changing the value of reference current in the circuit and using bifurcation diagram, the path of the system to chaos through period-doubling bifurcation is revealed. In this paper, a cubic variance negative feedback chaos controller (CVNFCC) is introduced to guide the chaotic motion to the period-1 orbit successfully. Compared with the resonant parametric perturbation chaotic controller (RPPCC), it is proved that the chaotic controller is simple in design and easy to implement. In addition, the influence of the external coefficient H of the CVNFCC on the chaos control effect is deeply studied in this paper. Different external coefficients are selected for analysis. According to the analysis results, it is concluded that the larger the external coefficient is, the better the effect of chaos control is.

show abstract

Section: Introductionmentioning

confidence: 99%

Cubic variance negative feedback chaos control for the buck-boost converter

Jiang,

Li,

Wei

2023

5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023)

View full text Add to dashboard Cite

show abstract

“…Instability, spurious oscillations and sub harmonics have been exclusively observed in fast switching power converters when they fail to maintain their normal periodic operation. Hence, chaos should be reduced as much as possible, or totally eliminated [2].…”

Section: Introductionmentioning

confidence: 99%

Chaos control in solar fed DC-DC boost converter by optimal parameters using nelder-mead algorithm powered enhanced BFOA

Sudhakar

Rajasekar

Akhil

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

Abstract:The boost converter is the most desirable DC-DC power converter for renewable energy applications for its favorable continuous input current characteristics. In other hand, these DC-DC converters known as practical nonlinear systems are prone to several types of nonlinear phenomena including bifurcation, quasiperiodicity, intermittency and chaos. These undesirable effects has to be controlled for maintaining normal periodic operation of the converter and to ensure the stability. This paper presents an effective solution to control the chaos in solar fed DC-DC boost converter since the converter experiences wide range of input power variation which leads to chaotic phenomena. Controlling of chaos is significantly achieved using optimal circuit parameters obtained through Nelder-Mead Enhanced Bacterial Foraging Optimization Algorithm. The optimization renders the suitable parameters in minimum computational time. The results are compared with the traditional methods. The obtained results of the proposed system ensures the operation of the converter within the controllable region.

show abstract

Z-domain modeling of peak current mode control for full-bridge DC-DC buck converters

et al. 2020

View full text Add to dashboard Cite

Traditional local-averaged state-space modeling for peak current mode (PCM) controls fails to explain the subharmonic oscillation phenomenon when the spectrum is higher than half of the switching frequency. To address this problem, this paper presents a small-signal modeling method in the z-domain, and builds a discrete linear model for the current loop of a full-bridge DC-DC converter. This discrete model is converted into a second-order continuous model that is able to represent the system performance with a wider frequency range. A frequency-domain analysis shows that this model can be used to explain the subharmonic oscillations and unstable characteristics. This provides an engineering guideline for the practical design of slope compensation. The effectiveness of the proposed modeling method has been verified by simulation and experimental results with a prototype working in the Buck mode.

show abstract

Chaos phenomenon in the DC-DC switching converters

Cited by 6 publications

References 12 publications

Cubic variance negative feedback chaos control for the buck-boost converter

Cubic variance negative feedback chaos control for the buck-boost converter

Chaos control in solar fed DC-DC boost converter by optimal parameters using nelder-mead algorithm powered enhanced BFOA

Z-domain modeling of peak current mode control for full-bridge DC-DC buck converters

Contact Info

Product

Resources

About