| 光伏并网逆变器IGBT关断浪涌电压抑制与预测保护研究 |
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| 引用本文： | 朱世武,黄长强,黄承.光伏并网逆变器IGBT关断浪涌电压抑制与预测保护研究[J].变流技术与电力牵引,2014(3):65-68. |
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| 作者姓名： | 朱世武 黄长强 黄承 |
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| 作者单位： | 南车株洲电力机车研究所有限公司; |
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| 摘 要： | 分析了光伏并网逆变器IGBT关断浪涌电压的产生机理，并对低寄生电感的复合母排设计方法进行了说明，最后给出了IGBT关断浪涌电压吸收电路与浪涌过压预测保护电路的设计方法。实际应用表明，该方法对于降低IGBT的过电压损坏风险起到较好的作用。
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| 关 键 词： | IGBT 浪涌电压 预测保护 吸收电路 |
Design of Surge Voltage Inhibition and Prediction Protection During IGBT Turn-off in Photovoltaic Grid-connected Inverter |
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| ZHU Shi-wu,HUANG Chang-qiang,HUANG Cheng.Design of Surge Voltage Inhibition and Prediction Protection During IGBT Turn-off in Photovoltaic Grid-connected Inverter[J].Converter Technology & Electric Traction,2014(3):65-68. |
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| Authors: | ZHU Shi-wu HUANG Chang-qiang HUANG Cheng |
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| Institution: | (CSR Zhuzhou Institute Co., Ltd., Zhuzhou, Hunan 412001, China) |
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| Abstract: | It analyzed the generation mechanism of surge voltage during IGBT switching-off in inverter, illustrated the design method of laminated bus-bar for low parasitic inductance, and put forward the design methods of absorption circuit for switching-off surge voltage and the over-voltage prediction protection of IGBT. The practical application shows that this method plays a significant role for reducing the damage risk of IGBT over-voltage. |
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| Keywords: | IGBT surge voltage prediction protection absorption circuit |
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