NDLI: A novel current-slope estimation strategy for sensorless position control of IPMSM without high-frequency signal injection

Content Provider	IEEE Xplore Digital Library
Author	Cheng-Kai Lin Li-Chen Fu Tian-Hua Liu
Copyright Year	2011
Description	Author affiliation: Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan (Tian-Hua Liu) \|\| Department of Electrical Engineering, National Taiwan University, Taipei 106, Taiwan (Cheng-Kai Lin; Li-Chen Fu)
Abstract	This paper proposes a novel strategy of current-slope estimation for sensorless position control applicable to interior permanent magnet synchronous motors. First we show, according to different switching modes of a six-switch voltage-source inverter based on hysteresis current control, the relation between rotor position and current-slope can be derived from the three-phase stator-voltage equations and the stator-current balance equation. The current-slope difference signals can then be extracted from the three different active-voltage switching modes. Finally, through designed six coordinate transformation matrices and an inverse tangent function, the rotor position can be estimated. The advantages of the proposed method include enhancing the current-slope difference signal, not requiring high frequency signal injection, and not using the zero-voltage current-slope signal. Some simulation results are provided to show the effectiveness of the proposed method.
Starting Page	2427
Ending Page	2432
File Size	783449
Page Count	6
File Format	PDF
ISBN	9781457707148
e-ISBN	9784907764395
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-09-13
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	SICE (The Society of Instrument and Cont
Subject Keyword	Rotors Voltage control Switches Inverters Equations Stators Estimation high frequency signal injection sensorless control current slope IPMSM six-switch three-phase inverter
Content Type	Text
Resource Type	Article

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