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发明授权
CN107086548B 一种直流断路器的转移支路单元 有权 许可

一种直流断路器的转移支路单元
摘要：
本发明涉及一种直流断路器的转移支路单元，包括多个IGBT阀堆、多个二极管阀堆和单元支撑框架；每一个IGBT阀堆与相应的二极管阀堆串联连接并形成H桥结构，所述二极管阀堆的高度高于IGBT阀堆的高度；所述单元支撑框架沿其长度方向上和沿其宽度方向上分别设有多个IGBT阀堆和多个二极管阀堆，所述单元支撑框架沿其长度方向上的多个IGBT阀堆和多个二极管阀堆分别并联连接，所述单元支撑框架沿其宽度方向上的多个IGBT阀堆和多个二极管阀堆分别串联连接，每个IGBT阀堆的一侧均设有与其并联连接的RCD缓冲回路。本发明不仅结构紧凑，而且便于装配和维护，能在某条线路发生故障时仍可以保证其他线路稳定运行。
摘要（英）：

The invention relates to a transferring branch unit of a direct current circuit breaker. The branch unit comprises multiple IGBT valve stacks, multiple diode valve stacks and a unit support framework. Each IGBT valve stack is serially connected with the corresponding diode valve stack to form an H-bridge structure. The height of each diode valve stack is bigger than the height of the corresponding IGBT valve stack. The IGBT valve stacks and the diode valve stacks are arranged on the unit support framework in the length and width directions. The unit support framework is parallelly connected with the IGBT valve stacks and the diode valve stacks are arranged on the unit support framework in the length direction, and is serially connected with the IGBT valve stacks and the diode valve stacks are arranged on the unit support framework in the width direction. An RCD buffering loop paralelly connected with each IGBT valve stack is arranged on one side of the IGBT valve stack.

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