NDLI: Dynamic Modeling and Control for SPMSMs With Internal Turn Short Fault

Content Provider	IEEE Xplore Digital Library
Author	Ilsu Jeong Byong Jo Hyon Kwanghee Nam
Copyright Year	1986
Abstract	A dynamic model for a faulted surface-mount permanent magnet synchronous motor (SPMSM) is derived using a deformed flux model. In reflecting the internal turn short into the dynamics, the variations in inductance and back EMF term were considered. Then, the faulted model was transformed into the two synchronous dq-models: one for the positive sequence and the other for the negative sequence. Also, a torque equation, which shows the relation between the ripple and the negative sequence current, is derived. The negative sequence current should be suppressed to eliminate the torque ripple. The dual current controller is utilized for this purpose: in the dual controller, the positive and negative sequences are controlled separately in their own synchronous frames. Notch filters are utilized in each synchronous frame to extract positive or negative sequence component. Experiments were performed with an SPMSM specially designed to make an internal turn short artificially. The experimental results coincide well with the corresponding simulation results, and exhibit a strength of the dual current controller in suppressing the negative sequence current.
Sponsorship	IEEE Power Electronics Society
Starting Page	3495
Ending Page	3508
Page Count	14
File Size	2642692
File Format	PDF
ISSN	08858993
Volume Number	28
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Couplings Windings Stator windings Inductance Integrated circuits Mathematical model positive sequence Dual current controllers fault tolerant flux linkage motor internal turn fault negative sequence permanent magnet synchronous motor (PMSM)
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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