Standby power system of railway digital traction substation and automatic switching method of standby power system

A technology of traction substation and backup power supply, which is applied in the direction of emergency power supply arrangement, electrical components, circuit devices, etc. It can solve the problems that cannot meet the needs of the comprehensive automation system of digital traction substation, and achieve slow response rate and high failure rate , the effect of low failure rate

Active Publication Date: 2016-02-03
CHENGDU SOUTHWEST JIAOTONG UNIV XUJI ELECTRIC
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AI Technical Summary

Problems solved by technology

With the application of railway digital traction substations, conventional backup power automatic switch-on devices cannot meet the needs of digital tra...

Method used

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  • Standby power system of railway digital traction substation and automatic switching method of standby power system
  • Standby power system of railway digital traction substation and automatic switching method of standby power system
  • Standby power system of railway digital traction substation and automatic switching method of standby power system

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Embodiment 1

[0034] like figure 1 and figure 2 and image 3 shown:

[0035] The backup power system of the railway digital traction substation includes the power supply network. The power supply network includes the 1# incoming line and the 2# incoming line. The 1# incoming line includes the isolating switch 1QS, the circuit breaker 1QF, the main transformer 1B, the main transformer in series The high-voltage side of 1B is connected to circuit breaker 1QF, the low-voltage side of main transformer 1B is connected to α-phase line through circuit breaker 3QF, and the low-voltage side of main transformer 1B is connected to β-phase line through circuit breaker 5QF; the incoming line 2# includes isolating switches connected in series in sequence. 2QS, circuit breaker 2QF, main transformer 2B, the high voltage side of the main transformer 2B is connected to the circuit breaker 2QF, the low voltage side of the main transformer 2B is connected to the α phase line through the circuit breaker 4QF,...

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PUM

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Abstract

The invention discloses a standby power system of a railway digital traction substation and an automatic switching method of the standby power system. The standby power system of the railway digital traction substation includes a power supply network, the power supply network includes a 1# inlet wire and 2 # inlet wire, the 1# inlet wire includes a disconnecting switch 1QS, a breaker 1QF and a main transformer 1B which are sequentially connected in series, the 2# inlet wire includes a disconnecting switch 2QS, a breaker 2QF and a main transformer 2B which are sequentially connected in series, a connecting point between the disconnecting switch 1QS and the breaker 1QF is point A, a connecting point between the disconnecting switch 2QS and the breaker 2QF is point B, and the point A is connected with the point B through an overline disconnecting switch 3QS; and the standby power system also includes an automatic switching control system, the automatic switching control system includes a spare power automatic switching device, and the spare power automatic switching device is connected with a main transformer high voltage side intelligent component, a main transformer low voltage side alpha phase intelligent component and a main transformer low voltage side beta phase intelligent component through a GOOSE network.

Description

technical field [0001] The invention relates to the field of railway power supply, in particular to a backup power supply system of an electrified railway digital traction substation and a self-switching method thereof. Background technique [0002] The digital substation takes the primary and secondary equipment of the substation as the digital object, and is mainly composed of two parts: one is the intelligent primary equipment including electronic transformers, intelligent switches, etc.; the second is that the secondary equipment needs to be networked and layered: process Layer, interval layer, station control layer and other parts, they are based on IEC61850 communication specifications, information sharing and interoperability can be carried out between intelligent electrical equipment in substations, and they are a combination of optoelectronic technology, information technology, network communication technology, etc. The integration of these technologies has the char...

Claims

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Application Information

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IPC IPC(8): H02J9/06
Inventor 郭华陈元寿任雪涛周小金
Owner CHENGDU SOUTHWEST JIAOTONG UNIV XUJI ELECTRIC
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