Analysis of a novel four-level DC/DC boost converter

Author

Corzine, Keith A. ; Majeethia, Sonal K.

Author_Institution

Dept. of Electr. Eng., Wisconsin Univ., Milwaukee, WI, USA

Volume

36

Issue

5

fYear

2000

Firstpage

1342

Lastpage

1350

Abstract

In this paper, novel two-quadrant buck/boost and one-quadrant boost four-level DC/DC power converters are introduced. The primary application for these converters is that of interfacing a low-voltage DC source, such as a fuel cell or battery, to a high-voltage four-level inverter. One important feature of the four-level DC/DC power converters proposed is the ability to perform the power conversion and balance the inverter capacitor voltages simultaneously. With the capacitor voltage balancing, it is possible to obtain the full voltage from the inverter. For the boost converter, the steady-state and nonlinear average-value (NLAM) models are developed. The NLAM is verified against a detailed simulation of a four-level converter/inverter drive system. The proposed converter is experimentally verified using an 18 kW converter/inverter system

Keywords

DC-DC power convertors; power capacitors; switching circuits; 18 kW; capacitor voltages balancing; four-level DC/DC boost power converter; low-voltage DC source; nonlinear average-value modelling; one-quadrant boost power convertor; power conversion; steady-state modelling; two-quadrant buck/boost convertor; Batteries; Capacitors; DC-DC power converters; Fuel cells; Power system modeling; Resonance; Resonant inverters; Steady-state; Switching loss; Voltage;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.871283

Filename

871283