Iso efficiency contour measurement results for variable speed drives

Author

Stockman, Kurt ; Dereyne, Steve ; Vanhooydonck, Dirk ; Symens, Wim ; Lemmens, Joris ; Deprez, Wim

Author_Institution

Tech. Univ. Coll. of West-Flanders, Kortrijk, Belgium

fYear

2010

fDate

6-8 Sept. 2010

Firstpage

1

Lastpage

6

Abstract

The efficiency of variable speed drives with induction motors and permanent magnet synchronous motors has received little attention so far in international standards. However the number of such applications is increasing rapidly and the potential energy savings are large. This paper is based on a measurement campaign of three collaborating research institutes and reports on the efficiency of motors up to 15 kW. The efficiency values are represented by means of iso efficiency contours. From these contours, the efficiency for IE1, IE2 and IE3 induction motors is compared with that of a permanent magnet machine for the entire torque - speed operation region. Also the impact of flux optimization with induction motors is analyzed. The required number of measurement points to construct accurate iso efficiency contours with minimum measurement effort is also discussed.

Keywords

induction motors; measurement standards; optimisation; permanent magnet motors; synchronous motors; variable speed drives; flux optimization; induction motor; iso efficiency contour measurement; permanent magnet machine; permanent magnet synchronous motor; potential energy saving; torque-speed operation region; variable speed drives; Induction motors; Magnetic field measurement; Permanent magnet motors; Power measurement; Synchronous motors; Torque; Torque measurement; AC motor drives; induction motors; measurement standards; permanent magnet machines;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2010 XIX International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-4174-7

Electronic_ISBN

978-1-4244-4175-4

Type

conf

DOI

10.1109/ICELMACH.2010.5608035

Filename

5608035