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Voltage Asymmetry Correction in a Stand – Alone Slip – Ring Induction Generator During Unbalance Load Supply
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| Author(s) |
Grzegorz Iwanski, Wlodzimierz Koczara |
| Abstract |
The following paper presents a slip-ring induction
generator operated in the stand alone mode. The sensorless
control method called Direct Voltage Control allows for fixed
amplitude and frequency of the generated stator voltage.
The star connected stator permits the unbalanced load can be
supplied from the generator. However the neutral wire must be
connected to the stator neutral point. In unbalanced load supply
case the control method consist of two parts. The main part is
responsible for the stator voltage amplitude, frequency and
phase, whereas the second part is responsible for the stator
voltage asymmetry correction. The positive and negative
sequence components of the stator voltage vector represented in
the two independent coordinates systems are used in the control
system.
An proposed Direct Voltage Control method equipped in
voltage asymmetry correction algorithm was proved in the
simulation and laboratory tests and the results are presented in
the paper. |
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| Filename: | 015 |
| Filesize: | 670.3 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-08 by System |
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