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Initial rotor position estimation for an integrated starter alternator IPM synchronous machine
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| Author(s) |
H. Kim; K.-K. Huh; M. Harke; J. Wai; R. D. Lorenz; T. M. Jahns |
| Abstract |
Novel methods for initial position estimation during start-up are presented for an integrated starter
alternator interior permanent magnet synchronous machine. The magnet cavities in the IPMSM rotor
create a sizable difference in the inductances of the two orthogonal rotor axes. This spatial saliency
base on the rotor position makes it possible to use persistent, rotating vector, carrier frequency image
tracking techniques to reliably identify and track the orientation of the d and q axes even when the
rotor is at standstill. However, additional details in the saliency image must be used to identify the
polarization of the magnets in order to distinguish the north and south poles. The magnet polarity is
identified by using magnetic saturation effects on the saliency image to uniquely identify the magnet
pole polarity being tracked. Experimental results show that the algorithms are capable of reliable and
fast initial position estimation. |
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| Filename: | EPE2003-PP0729 - Kim |
| Filesize: | 356.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2003-10-23 by Unknown |
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