A retrospective analysis method for the automatic switching process of standby power in traction substation
A technology for automatic switching of backup power supply and traction substation, which is applied in emergency power supply arrangements, electrical components, circuit devices, etc. The effect of reading
Active Publication Date: 2021-05-18
CHENGDU SOUTHWEST JIAOTONG UNIV XUJI ELECTRIC
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is that the existing automatic switching process analysis method cannot allow the staff to intuitively understand the entire automatic switching analysis process, which is not conducive to the adjustment of the staff. The purpose is to provide a traction substation standby power automatic switching Process recall analysis method to solve the above problems
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[0028] As shown in Figure 1, the present invention provides a retrospective analysis method for the auto-switching process of the backup power supply in the traction substation, and the conditions required for the auto-switching playback analysis:
[0029] The low-voltage side β-phase circuit breaker includes: 1# main transformer low-voltage side β-phase circuit breaker 5QF, 2# main transformer low-voltage side β-phase circuit breaker 6QF;
[0030] The α-phase circuit breaker on the low-voltage side includes: the α-phase circuit breaker 3QF on the low-voltage side of the 1# main transformer, and the 4QF circuit breaker on the α-phase low-voltage side of the 2# main transformer;
[0031] The rail-changing backflow isolating switch includes: 1# rail-changing backflow isolating switch 9QS and 2# rail-changing backflow isolating switch 10QS;
[0032] Main transformer neutral point isolating switch includes: 1# main transformer neutral point isolating switch 7QS and 2# main transfo...
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The invention discloses a method for recalling and analyzing the auto-input process of a backup power supply in a traction substation, including the following steps: S1: Perform auto-introduction playback analysis preparation, first select the auto-introduction mode in the setting item of the device's fixed value auto-input , switch type, device setting value automatic switch on and off, switch switch on and off in the project of automatic switch off, and identify the different operation modes adopted by the system; "Incoming line loss of voltage automatic switch mode" is set to "Inverted in-line", then create a switch value "Incoming line loss of voltage automatic switch mode is inverted in-line", the value is TRUE, all hard-opened to create a switch, when the hard-opened input When it is valid, the switch value is TRUE, otherwise it is FALSE; S3: draw the action playback logic diagram, the realization of the auto-input process playback needs to use the switch value information created in step S3 to draw the standby auto-initial action diagram, through the auto-injection action diagram. The information is displayed graphically.
Description
technical field [0001] The invention relates to an analysis method for the automatic switching process, in particular to a retrospective analysis method for the automatic switching process of the standby power supply in a traction substation. Background technique [0002] The traction substation is a special substation for electric traction. It converts the electric energy sent by the regional power system into electric energy suitable for electric traction according to the different requirements of electric traction for current and voltage, and then sends it to the railway line sky The erected catenary is used to supply power to electric locomotives, or to the power supply system required for urban transportation such as underground railways, to supply power to electric vehicles or trams. Since the traction substation undertakes the important task of uninterrupted power supply, it is required to have dual power supplies, The dual main transformers are fixed and standby, and...
Claims
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IPC IPC(8): H02J3/00H02J9/06
CPCH02J3/00H02J9/06H02J2203/20
Inventor 周小金范红疆
Owner CHENGDU SOUTHWEST JIAOTONG UNIV XUJI ELECTRIC