Novel high-way traction power supply system capable of selective feed line tripping
A technology for traction power supply and high-speed rail, applied in information technology support systems, electrical components, circuit devices, etc., can solve problems affecting line driving and service life of circuit breakers, so as to improve traction power supply quality, service life and reliability Effect
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[0024] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.
[0025] The IEC61850 protocol can be used to exchange information between devices through GOOSE communication. The new tripping system integrates all feeder protection devices and fault location devices of the substation, AT station, and district station of the same traction power supply arm into a GOOSE network. It can replace the special ranging channel of the conventional mode, and the GOOSE network can be used to quickly transmit fault information. The following describes the coordination process of the new tripping system by taking the cooperation between the distance measuring device and the feeder protection device when an uplink fault occurs in the catenary, such as figure 1 Shown:
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