Power Converter Sizing for a Switched Doubly Fed Machine Propulsion Drive

Author

Banerjee, Adrish ; Tomovich, Michael S. ; Leeb, Steven B. ; Kirtley, James L.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Massachusetts Inst. of Technol., Cambridge, MA, USA

Volume

51

Issue

1

fYear

2015

fDate

Jan.-Feb. 2015

Firstpage

248

Lastpage

258

Abstract

Doubly fed machines (DFMs) can be used to make variable speed drives (VSDs) that not only provide full shaft speed control but also avoid the need for a dc electrical bus capable of providing full mechanical shaft power. This makes the DFM attractive for any VSD application where the primary power source is ac. Switching configuration of the DFM on-the-fly opens up opportunity to operate the DFM on a wider speed range with reduced power electronics. This paper explores the design requirements for a switched DFM rotor power electronics in full-speed-range VSD applications, including propulsion drives. Tradeoffs are examined for power electronics sizing versus transient settling characteristics.

Keywords

angular velocity control; electric propulsion; machine control; power convertors; power electronics; rotors; shafts; variable speed drives; dc electrical bus; full shaft speed control; mechanical shaft power; power converter sizing; power electronics; power source; propulsion drive; switched DFM rotor; switched doubly fed machine; switching configuration; transient settling characteristics; variable speed drives; Power electronics; Rotors; Shafts; Stators; Steady-state; Switches; Torque; AC machines; drive design; electric vehicles; minimization; motor drives; power conversion;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2014.2330074

Filename

6828745