Energy absorption method for rail vehicles

Abstract

The present invention relates to the technical field of rail traffic control, in particular to an energy absorption method for rail vehicles. When the train is braking, the power supply information of the train is obtained, and the power supply information includes DC power supply and AC power supply; according to the power supply information, the The energy absorption device is connected to the DC bus for DC power supply or the two output terminals of the three-phase to single-phase transformer for AC power supply; Connect the step-down rectifier assembly; the energy absorbing device includes a positive terminal and a negative terminal electrically connected to two ends of the DC bus or two output terminals of a three-phase to single-phase transformer, and a switch located between the positive terminal and the negative terminal and electrically connected in turn cabinets, filter cabinets, chopper cabinets and energy absorbing resistors. The invention can fully absorb the energy of train braking, maintain the stability of the grid voltage and avoid the temperature rise in the station and the cave.

Description

technical field [0001] The invention relates to the technical field of rail traffic control, in particular to an energy absorption method 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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