| 超宽工作电压DC/DC变换器设计 |
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| 引用本文： | 王大为,赵瑞杰,陶学军,田素立,李朝锋.超宽工作电压DC/DC变换器设计[J].电源技术,2012,36(2):243-244,289. |
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| 作者姓名： | 王大为 赵瑞杰 陶学军 田素立 李朝锋 |
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| 作者单位： | 1. 许继新能源公司,河南许昌,461000
2. 西安交通大学,陕西西安,710049 |
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| 摘 要： | 针对太阳能光伏发电系统输出电压较宽的情况,设计了一种超宽工作电压的DC/DC变换器。利用稳压管在开关关断时对电路进行电压钳位,解决了单管反激变换器在高电压输入时电力MOSFET电压应力过高的缺陷。通过合理设计电路并从电路副边引入电流作为MOSFET栅极驱动,可以保证开关管的饱和导通。在理论分析、仿真优化、反复调试的基础上,设计了一款15 W、1 000 V/200 V输入的样机。经过测试,此变换器可以长时间稳定工作且转换效率比较高。
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| 关 键 词： | 光伏发电 变换器/超宽工作电压 电压钳位 仿真优化 开关管驱动 |
Design of wide operating voltage DC/DC converter |
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| WANG Da-wei
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ZHAO Rui-jie
,
TAO Xue-jun
,
TIAN Su-li
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LI Chao-feng.Design of wide operating voltage DC/DC converter[J].Chinese Journal of Power Sources,2012,36(2):243-244,289. |
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| Authors: | WANG Da-wei ZHAO Rui-jie TAO Xue-jun TIAN Su-li LI Chao-feng |
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| Affiliation: | 1(1.XJ New Energy Corporation,Xuchang Henan 461000,China;2.Xi’an Jiaotong University,Xi’an Shanxi 710049,China) |
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| Abstract: | Based on the situation of the wide output voltage range of solar photovoltaic power generation systems,a wide operating voltage of the DC / DC converter was designed.To solve the shortcoming of high voltage stress of the power when the switch was off,the voltage regulator tube was introduced in order to clamp the voltage.To ensure the saturation switch conduction of the MOSFET,a rational circuit was designed to induce the current from the secondary circuit as the MOSFET gate driver.Based on the theoretical analysis,simulation and optimization,a 15 W,1 000 V /200 V input prototype was designed.The test results show that the converter can work stably for a long time. |
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| Keywords: | PV converter/wide operating voltage voltage clamp simulation and optimization driver of the switch |
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