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Transformerless Parallel Three-Phase PWM Buck Rectifiers
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| Author(s) |
Zhihong Ye; Dushan Boroyevich |
| Abstract |
This paper develops an average model of transformerless parallel three-phase PWM buck rectifiers.
The model is based on a generic switching cell averaging that allows the model to preserve commonmode
components. The common-mode components are critical in the analysis of circulating current in
the parallel system, while they are usually neglected in a single converter model. Due to the
transformerless structure, a zero-sequence circulating current may occur. The paper proposes a novel
zero-sequence control so that the circulating current can be minimized. Simulation results with both
average and switching models are provided. |
| Download |
| Filename: | EPE2001 - PP00847 - Ye.pdf |
| Filesize: | 147.2 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-09 by System |
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