| 陈玉群，王勤,肖岚，高雨翔.单原边绕组双输入反激变换器关键问题的研究[J].电气自动化,2014,36(1):60~63 |
| 单原边绕组双输入反激变换器关键问题的研究 |
| A Research of Key Issues on the Double Input Fly back Converter with a Single Primary Winding |
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| DOI： |
| 中文关键词: 单原边绕组 双输入 反激 漏感 闭环 |
| 英文关键词:single primary winding double input fly back leakage inductance closed loop |
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| 中文摘要: |
| 单原边绕组双输入反激变换器结构简单，能实现多种新能源联合供电，在中小功率应用场合具有很好的应用前景。变压器只有一个一次绕组，开关器件电压应力降低，各输入源既可以单独向负载供电又可以同时向负载供电。但变换器由于变压器漏感及其他参数影响，反激变换器在开关管关断瞬间会产生很大的尖峰电压，会影响开关管的正常工作。选用吸收电路吸收漏感，实现闭环设计,最后通过仿真验证了理论分析的正确性和控制策略的有效性。 |
| 英文摘要: |
| The double input fly back converter with a single primary winding, characterized through a simple structure, can realize combined power supply through a variety of new energy sources, showing a good application perspective in the field of small and medium power. The transformer of the converter has only a single primary winding, the voltage stress of the switching device is reduced, and the input sources can supply power to the load either separately or simultaneously. However, because of transformer leakage inductance and other parameters, the fly back transformer can produce high voltage spikes at the switch off moment, thus affecting normal operation of the switch tube. The absorption circuit is chosen to absorb leakage inductance, and closed loop is used in the design. Finally, the simulation results demonstrate the correctness of the theoretical analysis and the validity of the control strategy. |
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