| 应用于超宽输入的LLC谐振变换器设计 |
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| 引用本文： | 孙明波,马运东,温海涛.应用于超宽输入的LLC谐振变换器设计[J].电源学报,2019,17(1):1-9. |
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| 作者姓名： | 孙明波 马运东 温海涛 |
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| 作者单位： | 南京航空航天大学自动化学院 |
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| 摘 要： | 针对光伏、风电等新能源输出不稳定的特点,在二极管箝位的全桥三电平LLC谐振变换器的基础上,提出了一种应用于超宽输入的控制策略。该变换器可通过控制开关逻辑,灵活地选择输入源进行供电,同时在每种固定的输入下,辅以调频控制及定频移相控制,实现高增益比。详细分析了不同模式下的电路拓扑、开关逻辑以及模式之间的切换方案,并在不同负载下进行了相关的实验,有效验证了该变换器在宽输入、变功率的苛刻环境下的普遍适用性。
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| 关 键 词： | 宽输入 LLC 调频 移相 |
| 收稿时间： | 2016/12/23 0:00:00 |
| 修稿时间： | 2018/3/23 0:00:00 |
Design of LLC Resonant Converter Used in Ultra-wide Input Applications |
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| SUN Mingbo,MA Yundong and WEN Haitao.Design of LLC Resonant Converter Used in Ultra-wide Input Applications[J].Journal of power supply,2019,17(1):1-9. |
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| Authors: | SUN Mingbo MA Yundong and WEN Haitao |
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| Affiliation: | College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China,College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China and College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China |
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| Abstract: | According to the characteristics of photovoltaic, wind power, and other new energies, a control strategy for ultra-wide input applications was purposed based on a diode clamp full-bridge three-level LLC resonant converter. This converter can flexibly select the supply power by controlling the switching logic; meanwhile, it used the frequency modulation control and fixed frequency phase shift control to achieve a high gain ratio. The circuit topology, switching logic, and the switching scheme between different modes were analyzed in detail. In addition, the related experiments were conducted under different loads, which effectively verified the general applicability of the designed converter in the harsh environment of ultra-wide input and variable power. |
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| Keywords: | wide input LLC frequency modulation phase shift |
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