NDLI: A new high frequency injection method based on duty cycle shifting without maximum voltage magnitude loss

Content Provider	IEEE Xplore Digital Library
Author	Wang, Dong Lu, Kaiyuan Rasmussen, Peter Omand
Copyright Year	2015
Description	Author affiliation: Department of Energy Technology, Aalborg, University, Aalborg DK-9220, Denmark (Wang, Dong; Lu, Kaiyuan; Rasmussen, Peter Omand)
Abstract	The conventional high frequency signal injection method is to superimpose a high frequency voltage signal to the commanded stator voltage before space vector modulation. Therefore, the magnitude of the voltage used for machine torque production is limited. In this paper, a new high frequency injection method, in which high frequency signal is generated by shifting the duty cycle between two neighboring switching periods, is proposed. This method allows injecting a high frequency signal at half of the switching frequency without the necessity to sacrifice the machine fundamental voltage amplitude. This may be utilized to develop new position estimation algorithm without involving the inductance in the medium to high speed range. As an application example, a developed inductance independent position estimation algorithm using the proposed high frequency injection method is applied to drive a synchronous reluctance machine. Simulation and experimental results are given to support the proposed new approach.
Starting Page	811
Ending Page	817
File Size	970829
Page Count	7
File Format	PDF
e-ISBN	9781479979417
DOI	10.1109/IEMDC.2015.7409153
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-05-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Switches Estimation Frequency modulation Pulse width modulation Inductance Support vector machines voltage magnitude loss duty cycle shifting field oriented control high frequency injection parameter independent sensorless control space vector modulation synchronous reluctance machine
Content Type	Text
Resource Type	Article

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