| 基于二极管箝位级联拓扑变流器的直驱风电用变流技术 |
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| 引用本文： | 李建林,胡书举,许洪华.基于二极管箝位级联拓扑变流器的直驱风电用变流技术[J].变流技术与电力牵引,2008(4):35-38. |
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| 作者姓名： | 李建林 胡书举 许洪华 |
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| 作者单位： | [1]中国科学院电工研究所,北京100190 [2]中国科学院研究生院,北京100049 |
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| 摘 要： | 直接驱动型风力发电系统需要全功率变流器作为与电网的接口，多电平变流器的应用得到了广泛关注。二极管箝位五电平级联H桥拓扑，结合了二极管箝位型多电平和级联H桥多电平的优势，只需较少的箝位二极管和独立直流电源，即可进一步提高输出电压等级；使用移相变压器和12脉波整流器作为输入电路.可以方便地应用在使用多相永磁同步发电机的直驱风电系统中。基于拓扑提出了消谐波SPWM和载波相移SPWM相结合的调制方法，能够方便地对二极管箝位级联拓扑进行控制，可以进一步提高等效载波频率，减小器件损耗和滤波器体积。仿真和实验结果证实了所采用的拓扑及其控制方法的有效性。
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| 关 键 词： | 直驱风电系统 永磁同步发电机 移相变压器 12脉波整流器 二极管箝位五电平级联 |
Converter Technology for Direct Drive Wind Power System Based on Diode Clamp Cascade Topology Converter |
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| LI Jian-lin,HU Shu-ju,XU Hong-hua.Converter Technology for Direct Drive Wind Power System Based on Diode Clamp Cascade Topology Converter[J].Converter Technology & Electric Traction,2008(4):35-38. |
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| Authors: | LI Jian-lin HU Shu-ju XU Hong-hua |
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| Institution: | LI Jian-lin1,HU Shu-ju1,2,XU Hong-hua1(1. Institute of Electrical Engineering,CAS,Beijing 100080,China,2. Graduate University of CAS,Beijing 100049,China) |
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| Abstract: | The direct-drive wind power system needs full-scale high power converter as interfaces between generator and grid. Multilevelconverter has been paid much attention. Topology of diode-clamped 5-level cascade H-bridge combines the advantages of diode-clampedmultilevel and cascade H-bridge multilevel converter. It improves the output voltage rating with few clamping diodes and separated DC-source.Adopting phase-shifting transformer and 12-pulse rectifier, the topology may be easily applied in direct-drive wind... |
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| Keywords: | direct-drive wind power system PMSG phase-shifting transformer 12-pulse rectifier diode-clamped 5-level cascade |
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