Design and implementation of three-phase half-bridge power factor correctors with balance of the output split capacitors
碩士 === 國立臺灣科技大學 === 電子工程系 === 89 === In this thesis, the design and implementation of three-phase half-bridge power factor correctors with balance of the output split capacitors is presented. The studied circuit system is able to efficiently convert the three-phase AC input into two regul...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2001
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| Online Access: | http://ndltd.ncl.edu.tw/handle/72627367355144095415 |
| Summary: | 碩士 === 國立臺灣科技大學 === 電子工程系 === 89 === In this thesis, the design and implementation of three-phase half-bridge power factor correctors with balance of the output split capacitors is presented. The studied circuit system is able to efficiently convert the three-phase AC input into two regulated output DC voltages.
A new four-switch topology utilizing the nature of the balance for a three-phase system is adopted to improve the three-phase power factor. The presented system features simple control circuits. A current-mode hysteresis band controller is used to obtain the switching signals for the switches in order to control the input currents rapidly. We also implement a balance control circuit to eliminate the imbalance phenomenon between the two output capacitors .
The experimental results and simulations are given to verify the theoretical discussions.
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