Coordinated Control Method of Converter Station and DC Circuit Breaker in Flexible DC System
A DC circuit breaker and flexible DC technology, applied in the direction of power transmission AC network, AC network with the same frequency from different sources, etc., can solve the problems of converter station damage, converter station voltage out of control, etc., to prevent out of control, suppress Effect of inrush current
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[0026] In order to prevent the voltage of a DC system converter station from being out of control before reclosing, the invention discloses a reclosing coordinated control method between a flexible DC system converter station and a DC circuit breaker.
[0027] Describe in detail below in conjunction with accompanying drawing:
[0028] The main purpose of the coordinated control method disclosed in the present invention is to ensure that the voltage of the converter station will not lose control after the fault of the flexible direct current system, and to suppress the surge current of reclosing when the instantaneous fault occurs.
[0029] figure 1 It is an operation flowchart of the coordinated control method.
[0030] In the flexible DC grid, the DC circuit breaker will immediately cut off the faulty line after the fault of the DC transmission line, and the converter station controlling the active power will be isolated in some cases.
[0031] Such as figure 2 In the two...
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