| 具有电压负反馈绕组的新型反激式单级功率因数校正变换器 |
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| 引用本文： | 赵清林,文毅,邬伟扬.具有电压负反馈绕组的新型反激式单级功率因数校正变换器[J].中国电机工程学报,2008,28(18):6-11. |
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| 作者姓名： | 赵清林 文毅 邬伟扬 |
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| 作者单位： | 燕山大学电气工程学院,河北省秦皇岛市,066004 |
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| 摘 要： | 提出一种具有电压负反馈绕组的新型反激式单级PFC变换拓扑。电压负反馈绕组的引入能够抑制中间储能电容电压，减小开关管的电压电流应力，解决了DCM PFC+ CCM DC/DC模式下轻载时，中间电容电压过高的问题，并且一部分输入功率将通过负反馈绕组直接传向负载，提高了变换器的效率。通过对电路工作模态和稳态的分析，可以得出该变换拓扑不仅具有较好的功率因数校正能力，还具有开关管电压应力低、效率高等优点。实验结果证明了该变换拓扑的优越性。
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| 关 键 词： | 功率因数校正 双耦合绕组 负反馈绕组 不连续导电模式 单级变换 |
| 文章编号： | 0258-8013(2008)18-0006-06 |
| 收稿时间： | 2007-01-23 |
| 修稿时间： | 2007年3月25日 |
A Novel Flyback Single-stage PFC Converter With Voltage Negative Feedback Winding |
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| ZHAO Qing-lin,WEN Yi,WU Wei-yang.A Novel Flyback Single-stage PFC Converter With Voltage Negative Feedback Winding[J].Proceedings of the CSEE,2008,28(18):6-11. |
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| Authors: | ZHAO Qing-lin WEN Yi WU Wei-yang |
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| Affiliation: | School of Electrical Engineering, Yanshan University School of Electrical Engineering, Yanshan University School of Electrical Engineering, Yanshan University |
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| Abstract: | A novel flyback single-stage PFC converter with voltage negative feedback winding is proposed. The voltage negative feedback winding is used to suppress the voltage of storage capacitors, and reduce the voltage and current stresses on power components. It can solve the high capacitors voltage problem at light load when converter works under DCM PFC+CCM DC/DC mode. Some input energy can be transferred to load directly via negative feedback winding, so it can achieve high efficiency. Operation principle and steady-state are discussed in detail. It can be seen that this converter can obtain good power factor correction ability, low switch voltage stress and high efficiency. The performance is verified by experimental results. |
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| Keywords: | power factor correction two coupled windings negative feedback winding discontinuous conduction mode single-stage convert |
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