Fault handling device and method for hybrid DC transmission system with fault restart function
A hybrid DC and power transmission system technology, applied in the direction of circuit devices, emergency protection circuit devices, emergency protection devices with automatic disconnection, etc., can solve the problems of long restart recovery time, unfavorable transient stability of AC and DC transmission systems, etc., and achieve structural Simplicity, safety protection, and the effect of protecting equipment safety
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[0039] The technical solutions and beneficial effects of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0040] The present invention provides a hybrid direct current transmission system fault processing device with a fault restart function, wherein the hybrid direct current transmission system includes a rectifier and converter station for connecting to the AC power grid at the sending end, and an inverse conversion station for connecting to the AC power grid at the receiving end A rectifier station and a direct current transmission line for connecting the rectification converter station and the inverter converter station. The thyristor converter unit, the other includes at least one set of current source converter units based on fully controlled power electronic devices (hereinafter referred to as: fully controlled current source converter).
[0041] Generally, the rectifier converter station adopts a converter based o...
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