Coexistence of solutions in a boost-flyback converter with current mode control | IEEE Conference Publication | IEEE Xplore

Coexistence of solutions in a boost-flyback converter with current mode control


Abstract:

In many practical applications power Converters are designed to work in a desired operation point depending on the needs of the appliance. The ability of the system to wo...Show More

Abstract:

In many practical applications power Converters are designed to work in a desired operation point depending on the needs of the appliance. The ability of the system to work in that point is related to a correct dynamic analysis that eventually leads to de design of a proper control strategy. Linear model approximations are an option to design control loops, but using this kind of models the nonlinear dynamics are neglected. In this paper we propose to study a boost-flyback converter by means of the numerical analysis of the converter hybrid model. The bifurcations diagrams show that the converter exhibits coexistence of solutions when varying the coupling coefficient of the inductors. Four different coexistence scenarios are reported, including period-1, period-2 and chaotic solutions. Results for two cases of study are experimentally validated.
Date of Conference: 20-23 February 2017
Date Added to IEEE Xplore: 15 June 2017
ISBN Information:
Electronic ISSN: 2473-4667
Conference Location: Bariloche, Argentina

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