Bidirectional Three-Level DC-DC Converters: Sum-Difference ...

Bidirectional Three-Level DC-DC Converters: Sum-Difference modeling and ControlMichael Eull and Matthias PreindlDepartment of Electrical Engineering, Columbia University in the City of New This paper proposes a modeling and control ap-proach for the Three-Level DC-DC converter . The converter isdescribed in a sum and difference ( ) framework. It is shownthat the formulation is useful to model the inverter and derivedesign-specific equations. The component is responsible for theinductor current, the power flow, and the component isused to balance (or unbalance) the DC-link capacitor is shown that there are cross-coupling terms between the and axes that can be compensated. The proposed model isvalidated using high fidelity simulations with a proportional-integral controller. Two- and Three-Level converter operation isshown and it is proven that the passive components can bereduced by50%to75%using Three-Level operation withoutaffecting the control performance.

Bidirectional Three-Level DC-DC Converters: Sum-Difference Modeling and Control Michael Eull and Matthias Preindl Department of Electrical Engineering, Columbia University in the City of New York

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  Converter, Modeling, Differences, Bidirectional, Dc converter, Sum difference modeling and

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