NDLI: Efficiency improvement of a sliding-mode controlled induction motor by flux removal

Content Provider	IEEE Xplore Digital Library
Author	de Beer, F.G. Deleroi, W. Klaasens, J.B.
Copyright Year	1992
Description	Author affiliation: Lab. for Power Electron. & Electr. Drives, Delft Univ. of Technol., Netherlands (de Beer, F.G.; Deleroi, W.; Klaasens, J.B.)
Abstract	A method to calculate a trajectory for the rotor flux is presented. This trajectory corresponds to an electromagnetic transition of the induction motor which links without any discontinuities, or electromagnetic transients, to the preceding and the succeeding steady state of the motor. The way the trajectory is presented differs from the known field-oriented control, but the result can be translated into the field-oriented d- and q-components of the stator current. Cost functions are derived to calculate the optimal shape of the rotor flux trajectory to achieve the lowest power peak. The shape of the trajectory is calculated for the sliding-mode positon drive. An experimental induction motor position drive was built using the sliding mode control technique. The sliding mode is equipped with a band around the sliding line for which the torque and rotor flux are zero. When the rotor axis moves inside this band, all electrical power, copper, and iron losses are avoided. During the experiments, an energy loss of 42% resulted as compared with the standard sliding-mode control.
Starting Page	145
Ending Page	152
File Size	584416
Page Count	8
File Format	PDF
ISBN	0780306953
DOI	10.1109/PESC.1992.254704
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-06-29
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sliding mode control Induction motors Rotors Shape Electromagnetic induction Steady-state Stators Cost function Torque Copper
Content Type	Text
Resource Type	Article

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