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Sensorless Speed Control including zero speed of Non Salient PM Synchronous Drives
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| Author(s) |
Henrik Rasmussen |
| Abstract |
This paper presents a position sensorless drive of
non salient pole PMsynchronous motors for all speed including
zero speed. Using adaptive Lyapunov design a new approach
for the design of an observer is developed. The resulting scheme
leads to a nonlinear full order observer for the motor states including
the rotor speed. Assuming motor parameters known
the design achieves stability with guaranteed region of attraction
even at zero speed. The control method is made robust at
zero and low speed by changing the direct vector current component
to a value different from zero. In order to verify the applicability
of the method the controller has been implemented
and tested on a 800W motor. |
| Download |
| Filename: | 127 |
| Filesize: | 284 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-07 by System |
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