Presentation Information
[N-1-14]Investigation of the Bifurcation Structure of a One-Dimensional Current-Mode Controlled Boost DC-DC Converter with a Thermoelectric Module under Slope Compensation
◎Mizuki Orihara1, Shota Uchino1, Masanori Kimoto1 (1. Nippon Institute of Technology)
Keywords:
Bifurcation phenomenon,Thermoelectric module,DC-DC converter
The output characteristics of thermoelectric modules vary with the temperature difference; therefore, a power converter is required to convert the output voltage to a level suitable for the load. However, power converters such as DC–DC converters may exhibit bifurcation phenomena due to variations in circuit parameters, potentially resulting in unstable circuit operation. We previously investigated the dynamic behavior of a one-dimensional model of a current-mode-controlled boost DC–DC converter that accounts for the characteristics of a thermoelectric modelu under slope compensation. However, the bifurcation structure over a broader parameter space has not yet been sufficiently examined.
In this paper, the occurrence regions of different operating states are classified using two-parameter bifurcation diagrams, in which two circuit parameters are varied simultaneously. We then investigate how the application of slope compensation changes the parameter region in which a low-ripple period-1 solution can be obtained.
In this paper, the occurrence regions of different operating states are classified using two-parameter bifurcation diagrams, in which two circuit parameters are varied simultaneously. We then investigate how the application of slope compensation changes the parameter region in which a low-ripple period-1 solution can be obtained.