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NONLINEAR BEHAVIOUR OF VOLTAGE SOURCE INVERTERS WITH POWER TRANSISTORS
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| Author(s) |
A. Weschta; W. Weberskirch |
| Abstract |
The output voltage of voltage source inverter (VSI) differs appreciably from the reference voltage due to the switching performance and the on-state voltage of power semiconductors. The logic control circuit used to prevent a dc link short circuit also plays a part in these nonlinearities. Familiar space vector theory can be successfully used to describe these effects very clearly. The extent of waveform distortion depends on the type of base drive unit and logic control circuit. Data is presented for bipolar transistors (BIP), field-effect transistors (FET), and insulated gate bipolar transistors (IGBT). Finally, the paper presents several compensation methods. The optimum method uses digital voltage control with dead-beat response. |
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| Filename: | Unnamed file |
| Filesize: | 546.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2021-02-23 by System |
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