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发明公开
CN110677029A 一种带被动过压保护模块化多电平换流器功率模块拓扑 审中-实审

一种带被动过压保护模块化多电平换流器功率模块拓扑
摘要：
本发明公开了一种带被动过压保护模块化多电平换流器功率模块拓扑，其中半桥功率模块的改进拓扑为在半桥功率模块的功率输出端口上并联了单向电子开关，电子开关的阳极接模块功率输出端口的高压端，电子开关的阴极接模块功率输出端口的低压端，电子开关的驱动门极与电子开关的阴极在内部或外部短接。半桥功率模块的另一种改进拓扑为在半桥功率模块的功率输出端口上并联了双向电子开关，电子开关的驱动门极与电子开关的阴极在内部或外部短接。全桥功率模块的改进拓扑为在全桥功率模块的功率输出端口上并联了双向电子开关，电子开关的驱动门极与电子开关的阴极在内部或外部短接。
摘要（英）：

The invention discloses a modular multilevel converter power module topology with passive overvoltage protection. The improved topology of the half-bridge power module is that a one-way electronic switch is connected in parallel to the power output port of the half-bridge power module. The anode of the electronic switch is connected with the high-voltage end of the module power output port. The cathode of the electronic switch is connected with the low-voltage end of the module power output port. The driving gate of the electronic switch and the cathode of the electronic switch are internallyor externally shorted. Another improved topology of the half-bridge power module is that a bidirectional electronic switch is connected in parallel to the power output port of the half-bridge power module. The driving gate of the electronic switch and the cathode of the electronic switch are shorted internally or externally. The improved topology of the full-bridge power module is that a bidirectional electronic switch is connected in parallel to the power output port of the full-bridge power module. The driving gate of the electronic switch and the cathode of the electronic switch are shortedinternally or externally.

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