Designing more efficient large industrial induction motors by utilizing the advantages of adjustable speed drives

Author

Li, Harry ; Curiac, Radu

Author_Institution

Siemens Energy & Autom., Norwood, OH, USA

fYear

2009

fDate

14-16 Sept. 2009

Firstpage

1

Lastpage

6

Abstract

The rotor of an induction motor is designed to provide adequate starting torque and limit starting current when the load is being accelerated by the motor. These starting requirements on the rotor force design engineers to employ special shape rotor bars, or high resistance bars and thereby reduce motor efficiency and increase motor temperature rise. In addition to the benefits provided by an adjustable speed drive (ASD) in controlling operating speed, this paper evaluates the benefits of ASD in allowing engineers to design higher efficiency motors, and in turn, smaller size motors.

Keywords

induction motor drives; adjustable speed drives; high resistance bars; industrial induction motors; motor efficiency; motor temperature; rotor force design engineers; shape rotor bars; Acceleration; Bars; Design engineering; Induction motors; Rotors; Shape; Size control; Temperature; Torque; Variable speed drives; ASD; Induction motors; efficiency; frame size; rotor design; starting current; starting torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Petroleum and Chemical Industry Conference, 2009. PCIC 2009. 2009 Record of Conference Papers - Industry Applications Society 56th Annual

Conference_Location

Anaheim, CA

ISSN

0090-3507

Print_ISBN

978-1-4244-3798-6

Electronic_ISBN

0090-3507

Type

conf

DOI

10.1109/PCICON.2009.5297159

Filename

5297159