Efficiency Analysis of a Ladder Multilevel Converter with the Use of the Equivalent Continuous Model

Andres Lopez; Diego Patino; Rafael Diez

Efficiency Analysis of a Ladder Multilevel Converter with the Use of the Equivalent Continuous Model

Andres Lopez

Diego Patino

Rafael Diez

Vol. 14, No. 6, pp. 1130-1138, Nov. 2014

10.6113/JPE.2014.14.6.1130

Average modeling

Ladder multilevel converter

Power losses

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Abstract

This study analyzes a ladder multilevel converter (double ladder topology) with the use of a new averaging modeling technique. This technique introduces an analytical method to compute for the switching losses and is used to conduct an in-depth analysis of theinfluence of the switching frequency and parasitic resistance of components on converter efficiency. The obtained results enable theselection of switches and switching frequency to minimize losses. Moreover, simulation results and experimental measurementsvalidate the analytical calculations.

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Cite this article

[IEEE Style]

A. Lopez, D. Patino, R. Diez, "Efficiency Analysis of a Ladder Multilevel Converter with the Use of the Equivalent Continuous Model," Journal of Power Electronics, vol. 14, no. 6, pp. 1130-1138, 2014. DOI: 10.6113/JPE.2014.14.6.1130.

[ACM Style]

Andres Lopez, Diego Patino, and Rafael Diez. 2014. Efficiency Analysis of a Ladder Multilevel Converter with the Use of the Equivalent Continuous Model. Journal of Power Electronics, 14, 6, (2014), 1130-1138. DOI: 10.6113/JPE.2014.14.6.1130.