IEEE Industry Applications Society

This paper presents a technique that will calculate the absolute angular position of a permanent magnet (PM) rotor within a pole pair at standstill. The algorithm works with non-salient pole motors. By choosing an appropriate voltage pulse width and applying it to each phase winding, the stator curr...

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Bibliographic Details
Main Authors: Annual Meeting New, Peter B. Schmidt, Michael L. Gasperi, Glen Ray, Ajith H. Wijenayake
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
North Pole
South Pole
South pole
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.6.8049
http://www.ab.com/drives/techpapers/ieee/10_3.pdf
Description
Summary:This paper presents a technique that will calculate the absolute angular position of a permanent magnet (PM) rotor within a pole pair at standstill. The algorithm works with non-salient pole motors. By choosing an appropriate voltage pulse width and applying it to each phase winding, the stator currents will partially saturate the stator iron, enabling the algorithm to discern between a north pole and a south pole, and subsequently, the absolute position. The scheme is computationally simple and does not rely on the knowledge of any of the motor parameters.

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