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发明公开
CN106209039A 一种新型混合型直流断路器及功率单元 无效 - 驳回

一种新型混合型直流断路器及功率单元
摘要：
本发明涉及一种新型混合型直流断路器及功率单元，该直流断路器包括并联连接的换流支路、开断支路和能量吸收支路，开断支路包括若干个串联连接的开断单元，其中开断单元采用一种特定功率单元结构，该特定功率单元结构包括并联连接的至少一个正向通道支路和至少一个反向通道支路，所述正向通道支路和反向通道支路均包含同向串联的一个全控型功率器件和一个二极管，所述正向通道支路和反向通道支路的导通方向相反。该直流断路器的开断单元通过将多个单通道支路并联连接，有效提高了断路器开断电流的灵活性及可靠性。
摘要（英）：

The invention relates to a new type hybrid direct current circuit breaker and a power unit. The direct current circuit breaker comprises a conversion branch, a switch-on/switch-off branch and an energy absorption branch which are connected in parallel. The switch-on/switch-off branch comprises a plurality of switch-on/switch-off units which are connected in series. A special power unit structure is employed for each switch-on/switch-off unit. The special power unit structure comprises at least one forward channel branch and at least one backward channel branch which are connected in parallel. Each of the forward channel branch and the backward channel branch comprises a full control power device and a diode which are connected in series in the same direction. The switch-on directions of the forward channel branch and the backward channel branch are opposite. The switch-on/switch-off units of the direct current circuit breaker are connected in parallel through multiple single-channel branches, and the flexibility and reliability of switching on/switching off a current by the circuit breaker are effectively improved.

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