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Bidirectional Semiconductor Transformer using high frequency resonant converter
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| Author(s) |
Byung-Kwon Lee; Jun-Young Lee |
| Abstract |
This paper describes a prototype of modularized 3-phase semiconductor transformer which was developed in the lab for feasibility study. The developed prototype is composed of three units of single-phase semiconductor transformer coupled in Y-connection. Each single-phase unit has multiple units of high-voltage high-frequency resonant AC-DC converter, a low-voltage hybrid-switching DC-DC converter, and a low-voltage hybrid-switching DC-AC inverter. Also each singlephase
unit has two DSP boards to control converter operation and to acquire monitoring data. Monitoring system was
developed based on LabView by using CAN communication between the DSP board and the PC. Through diverse experimental analyses it was verified that the prototype operates with proper performance under normal and sag condition. The developed prototype confirms a possibility to fabricate a commercial high-voltage high-power semiconductor transformer by increasing the number of series-connected converter modules in high-voltage side and improving the system efficiency with a new switching device such as SiC device. |
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| Filesize: | 687.4 KB |
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| Type |
Members Only |
| Date |
Last modified 2017-01-18 by System |
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