Analysis and design of a bidirectional cycloconverter-type high frequency link inverter with rural commutated phase angle control
In this paper a cycloconverter-type high frequency transformer link inverter with a reduced switch count is analyzed and designed. The proposed topology consists of an H-bridge inverter at the transformer`s primary side and a cycloconverter with three bidirectional switches at the secondary. All of...
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| Main Authors: | , , |
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| Format: | Article |
| Published: |
Korean Institute of Power Electronics
2011
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/44735/ |
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| Summary: | In this paper a cycloconverter-type high frequency transformer link inverter with a reduced switch count is analyzed and designed. The proposed topology consists of an H-bridge inverter at the transformer`s primary side and a cycloconverter with three bidirectional switches at the secondary. All of the switches of the cycloconverter operate in non-resonant zero voltage and zero current switching modes. To overcome a high voltage surge problem resulting from the transformer leakage inductance, phase angle control based on natural commutation is employed. The effectiveness of the proposed inverter is verified by constructing s 750W prototype. Experimentally, the inverter is able to supply a near sinusoidal output voltage with a total harmonic distortion of less than 1%. For comparison, a PSpice simulation of the inverter is also carried out. It was found that the experimental results are in very close agreement with the simulation. |
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