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Comprehensive analysis of voltage balancing techniques for 5L NPC converters
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| Author(s) |
Mikel MAZUELA, Igor BARAIA, Silverio ALVAREZ, Inigo ATUTXA, Danel MADARIAGA |
| Abstract |
The reduced capability of the 5L-NPC Inverter to balance the voltages of the four DC-bus capacitorsmakes this converter unattractive for real power applications. This is especially true if the loaddemands active power. The Back-to-Back (B2B) configuration of two 5L-NPC converters and the useof a Space Vector Modulation (SVM) that exploits the voltage balancing capabilities of the redundantswitching vectors, extend the operating conditions range in which a proper voltage balance can beachieved. However, if practical modulation restrictions are considered (limitation of voltage steps,dead times, switching losses, etc.) the voltage balance cannot be achieved for all operation conditions. |
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| Filename: | 0153-epe2013-full-10100362.pdf |
| Filesize: | 419.8 KB |
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| Type |
Members Only |
| Date |
Last modified 2014-02-09 by System |
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