Energy absorption system for a rail vehicle

Abstract

The invention relates to the technical field of rail traffic control, in particular to an energy absorption system for a rail vehicle, which comprises a train information acquisition device used for acquiring power supply information of a train when the train is braked, and the power supply information comprises direct current power supply and alternating current power supply; an alternating current and direct current absorption selection device which is used for connecting the energy absorption device to the direct current bus when the direct current power supply is identified; when the AC power supply is identified, the energy absorption device is connected to the two output ends of the three-phase to single-phase transformer; and an energy absorption device which is used for absorbing energy fed back to the direct-current bus or the three-phase-to-single-phase transformer during braking. According to the energy absorption system, the energy of train braking can be fully absorbed, and the temperature rise in the station and the hole is avoided while the stability of the power grid voltage is maintained.

Description

technical field [0001] The invention relates to the technical field of rail traffic control, in particular to an energy absorbing system for rail vehicles. Background technique [0002] With the rapid development of my country's urban rail transit construction, subway has become the main mode of urban rail transit, but it also brings many problems. Due to the short distance between subway stations, trains need to be frequently started and braked during operation. During the braking process, a large amount of mechanical energy contained in subway trains will be converted into electrical energy, heat energy, etc. If no means are used to deal with or Recycling can easily have adverse effects on the operation of power station equipment and trains. For example, during the braking process of subway trains, a large amount of mechanical energy is consumed by braking resistors and other equipment, and only a small part is absorbed and reused. Not only the energy utilization rate is ...

AI Technical Summary

Problems solved by technology

Due to the short distance between subway stations, trains need to be frequently started and braked during operation, and a large amount of mechanical energy contained in subway trains will be converted into electrical energy and heat energy during the braking process. Recycling can easily have adverse effects on the operation of power station equipment and trains

For example, during the braking process of subway trains, a large amount of mechanical energy is consumed by equipment such as braking resistors, and only a small part is absorbed and reused. Not only the energy utilization rate is low, but also a large amount of heat is discharged to the surrounding environment, causing the temperature inside the station and the cave to rise. high

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