Double-end direct-current power distribution network distributed region protection method based on current differential state quantity
A DC distribution network and area protection technology, applied in the direction of emergency protection circuit devices, electrical components, etc., can solve the problems of IGBT and diode irreversible impact, fault current rise, high amplitude, etc., to reduce the scope of fault power outage, strong applicability , The effect of short transmission distance
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[0031] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.
[0032] The present invention proposes a distributed area protection method for double-terminal DC distribution network based on current differential state quantity, which is applicable to double-terminal or multi-terminal DC distribution network under various operating modes. The multi-terminal DC distribution network is taken as an example to illustrate.
[0033] figure 1 It is a double-terminal DC distribution network model, and its AC connection transformer adopts th...
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