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Output Harmonic Losses in Three-level Converters using Sine PWM with 3. Harmonic Injection
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| Author(s) |
R. Lund; G. Tomta; R. Nilsen |
| Abstract |
Analytical expressions for the ripple current on the AC-side of a 3-level converter are developed for
sinusoidal PWM with 3. harmonic injection. By using analytical expressions, time consuming time domain simulations are avoided. Experimental measurements on a
three-level prototype in the lab and simulations are done to verify the analytical expressions. By introducing a 3. harmonic component in the control signals, an increase in the modulation range of 15% can be achieved. In addition, the harmonic current is lowered, especially in the high
modulation range. |
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| Filename: | Unnamed file |
| Filesize: | 163.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-01-24 by System |
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