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Verification of Frequency Converter With Small Dc-link Capacitor
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| Author(s) |
PYRHÖNEN Olli; SAREN Hannu; RAUMA Kimmo; LAAKKONEN Ossi |
| Abstract |
Traditionally, large dc-link capacitors have been used in voltage source inverters. By using MPPF-type capacitor the line current harmonic content is improved and the unreliable electrolytic capacitor can be omitted. In this paper, the dynamic behavior of an inverter with small dc-link capacitor has been studied by simulations and laboratory tests. A new modulating principle, named Differential Space Vector Pulse Width Modulation (DSVPWM), can deal with heavily fluctuating dc-link voltage and produce correct voltage vector with high accuracy. The performance of the DSVPWM has been verified with simulations. |
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| Filename: | 0052 |
| Filesize: | 481.4 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-13 by System |
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