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Active damping of flux oscillations in doubly-fed AC machines
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| Author(s) |
C. Roberto Kelber; W. Schumacher |
| Abstract |
Due to limited range of speed adjustment and reduced costs of the converter doubly-fed AC machines
are becoming more common in hydroelectric power plants with adjustable speed constant frequency
energy generation systems. Unfortunately under some operating conditions, the stator flux in this
machine begins to oscillate. The oscillations are poorly damped, and if the stability limits are reached
they cannot be damped without an external influence. In this article the fundamentals of the active
damping of the flux in doubly-fed AC machines using an additional inverter connected in series with
the stator’s open star point will be presented. Experimental results obtained with a 33kW test rig are
included. |
| Download |
| Filename: | EPE2001 - PP01040 - Kelber.pdf |
| Filesize: | 158.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-15 by System |
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