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A ZCT Soft Switching Approach for T-type 3-level Converter - Analysis, Design Guideline, Experiment and Issues
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| Author(s) |
Yanhong ZHANG |
| Abstract |
A zero current transition (ZCT) approach for T-type 3-level converter is presented in the paper. Through State-Plane analysis of its voltage and current trajectory in 4 operation zones, a design guideline is developed. The proposal is verified in a 10KVA converter, which is a mini-model of 500KVA UPS product. Preliminary test result shows that diode reverse recovery is a big concern for such ZCT soft switching techniques. Countermeasures for reducing the impact of diode reverse recovery are tested and discussed. |
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| Filename: | 0210-epe2016-full-11533572.pdf |
| Filesize: | 966.4 KB |
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| Type |
Members Only |
| Date |
Last modified 2017-04-13 by System |
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