NDLI: Wide-speed direct torque and flux control of torque-controlled IPMSM drives

Content Provider	IEEE Xplore Digital Library
Author	Sehwan Kim Jul-Ki Seok
Copyright Year	2012
Description	Author affiliation: Power Conversion Lab., YeungNam University, KOREA (Sehwan Kim; Jul-Ki Seok)
Abstract	This paper proposes a voltage-limited finite-settling-step direct torque and flux control (FSS-DTFC) method with a constant switching frequency for torque-controlled interior permanent-magnet synchronous motors (IPMSMs). The proposed control law dynamically scales voltage vectors on the hexagonal voltage boundary to ensure maximum torque capabilities at given operating conditions, while simultaneously regulating the stator flux linkage magnitude under flux-weakening operation. Instead of evaluating control performance based on intuitive voltage selection rule, this paper focuses on developing a discrete time function of the rate of change of an air-gap torque for facilitating optimal voltage vector choices. Then, this analytical solution leads to optimal voltage modification at each time step with respect to the available inverter voltage. The voltage-limited FSS-DTFC approach has potential advantages of achieving fastest transient torque trajectories and direct manipulation of the stator flux linkage while exploiting maximum voltage excitation.
Starting Page	3993
Ending Page	3999
File Size	922120
Page Count	7
File Format	PDF
ISBN	9781467308021
e-ISBN	9781467308038
e-ISBN	9781467308014
DOI	10.1109/ECCE.2012.6342157
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Couplings Torque-controlled interior permanent-magnet synchronous motors (IPMSMs) Optimal voltage vector choices Torque Voltage-limited finite-settling-step direct torque and flux control (FSS-DTFC) Air gaps Stators Vectors Inverters Discrete time function of the rate of change of torque Voltage control Maximum voltage excitation
Content Type	Text
Resource Type	Article

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