NDLI: A feedforward approach to the dynamic emulation of mechanical loads

Content Provider	IEEE Xplore Digital Library
Author	Rodic, M. Jezernik, K. Trlep, M.
Copyright Year	2004
Description	Author affiliation: Maribor Univ., Slovenia (Rodic, M.; Jezernik, K.; Trlep, M.)
Abstract	A simple practical approach to the testing of variable speed and torque drives with the application of the dynamic emulation of mechanical loads is presented. Both, linear and non-linear dynamics can be applied. The experimental system consists of the drive under test, which is mechanically connected to the active loading system. The emulation procedure is performed by the closed-loop calculation of the torque, applied by the load machine, in such a manner that the input/output behavior of the experimental system resembles the one of the drive under test propelling the emulated load. A simple feedforward scheme, combined with a feedback controller, is used. In contrast to existing references the method is simple and requires no torque measurement equipment. Also the influence of the nonlinear dynamics of the experimental system is discussed. The method can be used for the evaluation of the control algorithms, regardless the control and estimation methods used. The applied load machine is assumed to be torque-controlled with high precision. An induction motor is used as a drive machine and a BLDC machine is used as a load machine. Algorithms are developed with the use of Matlab/Simulink and experiments are executed with the use of the dSPACE system.
Sponsorship	IEEE Power Electon. Soc
Starting Page	4595
Ending Page	4601
File Size	453294
Page Count	7
File Format	PDF
ISBN	0780383990
ISSN	02759306
DOI	10.1109/PESC.2004.1354812
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-06-20
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Emulation Nonlinear dynamical systems System testing Propulsion Adaptive control Inverse problems Performance evaluation Torque measurement Induction motors Mechanical systems
Content Type	Text
Resource Type	Article

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