A method for emergency traction power supply of electrified railway
A technology for electrified railways and traction power supply, which is applied in railway transportation, power lines, railway transportation, etc. It can solve the problems of being unable to meet long-term emergency power supply needs and providing emergency traction capacity, so as to improve emergency power supply capacity and enhance power supply reliability Safety, the effect of protecting the life safety of passengers
Active Publication Date: 2021-12-17
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
However, the emergency power supply devices equipped on existing trains can only provide short-term emergency power supply for equipment such as ventilation, control, and lighting, and cannot meet the long-term emergency power supply requirements in harsh scenarios, let alone provide emergency traction capabilities.
Method used
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Embodiment Construction
[0057] The present invention will be further described below in conjunction with the accompanying drawings.
[0058] Such as figure 1 As shown, the overall structure of the emergency traction system used in the present invention is: including the left traction network 2, the traction substation 3, the right traction network 4, the ground source storage system 1 and the vehicle energy storage system 5. Among them, the left traction network 2, the traction substation 3, and the right traction network 4 are connected in sequence, and the two ports of the ground source storage system 1 are respectively connected to the left traction network 2 and the right traction network 3.
[0059] Such as figure 2 As shown, the ground source storage system 1 includes a back-to-back conversion device 11 , a ground energy storage system 12 and a new energy power generation system 13 . The back-to-back converter equipment is composed of left switchgear 111, left isolation transformer 112, left...
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The invention discloses an emergency traction power supply method for an electrified railway. The electrified railway includes a plurality of power supply sections, each power supply section is provided with a ground source storage system, and a train running in the power supply section is provided with a vehicle-mounted energy storage system. The emergency traction power supply method includes the steps of: selecting an emergency operation mode according to the fault type of the fault power supply section; generating emergency control instructions for the train self-emergency mode, assisting cross-area power supply mode or train-station coordinated emergency mode; vehicle-mounted energy storage system and ground source The storage system is controlled according to the emergency control instructions. The invention can effectively improve the emergency power supply capacity of the traction power supply of the electrified railway under the fault state, and further guarantee the safe, reliable, stable and efficient operation of the railway.
Description
technical field [0001] The invention relates to the field of traction power supply systems for electrified railways, in particular to an emergency traction power supply method for electrified railways. Background technique [0002] At present, in the traction power supply system of electrified railways, when the traction substation equipment fails or the external power grid loses power and the whole substation is out of operation, the adjacent substation can implement cross-regional power supply to the faulty section to ensure the power source of the train . However, under cross-region power supply, the power supply distance of a single substation is too long, the power supply capacity is insufficient, and the reliability is not high. When some lines without cross-region power supply or traction network failure (such as short circuit, broken line), the train will not be able to obtain electric energy from the outside, and can only stop in situ and wait for rescue. [0003]...
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IPC IPC(8): B60M3/00B61C3/02
CPCB60M3/00B61C3/02Y02T30/00
Inventor 高仕斌胡海涛黄毅陈俊宇葛银波王科何正友
Owner SOUTHWEST JIAOTONG UNIV