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发明公开
CN110380605A 一种柔性直流输电子模块与柔性直流输电系统 有权

一种柔性直流输电子模块与柔性直流输电系统
摘要：
本发明公开了一种柔性直流输电子模块，包括第一电容、IGBT功率单元与屏蔽盒；所述IGBT的发射极通过驱动引线与所述屏蔽盒相连，所述IGBT的门极通过所述第一电容与所述屏蔽盒相连；所述第一电容，其元件容值被配置为补偿所述IGBT各极间电容与所述屏蔽盒的寄生电容所形成的开尔文电桥的平衡差值。本发明还公开了一种柔性直流输电系统，其包括如上所述的柔性直流输电子模块。本发明公开的柔性直流输电子模块与柔性直流输电系统，通过构建平衡的开尔文电桥，消除了寄生电容造成的干扰，使得驱动信号趋向正常，保证了整个输电系统的工作性能。
摘要（英）：

The invention discloses a flexible direct current transmission submodule, which comprises a first capacitor, an IGBT power unit and a shielding box, wherein an emitter of the IGBT is connected with the shielding box through a driving lead, and a gate of the IGBT is connected with the shielding box through the first capacitor; and the element capacitance of the first capacitor is configured to compensate the balance difference of a Kelvin bridge formed by the interelectrode capacitance of the IGBT and the parasitic capacitance of the shielding box. The invention further discloses a flexible direct current transmission system which comprises the flexible direct current transmission submodule. According to the flexible direct current transmission submodule and the flexible direct current transmission system disclosed by the invention, the interference caused by parasitic capacitance is eliminated by constructing the balanced Kelvin bridge, so that the driving signal tends to be normal, and the working performance of the whole transmission system is ensured.

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