Energy absorption method for rail vehicle

Abstract

The invention relates to the technical field of rail traffic control, in particular to an energy absorption method for a rail vehicle. The method comprises the following steps: obtaining the power supply information of a train during the braking of the train, wherein the power supply information comprises direct current power supply and alternating current power supply; according to the power supply information, connecting an energy absorption device to a direct current bus for the direct current power supply or two output ends of a three-phase-to-single-phase transformer for the alternating current power supply; and when the power supply information is the alternating current power supply, connecting a step-down rectification assembly between one output end of the three-phase-to-single-phase transformer and the energy absorption device. The energy absorption device comprises a positive electrode end and a negative electrode end which are electrically connected to two ends of the direct current bus or two output ends of the three-phase-to-single-phase transformer, and a switch cabinet, a filtering cabinet, a chopping cabinet and an energy absorption resistor which are located between the positive electrode end and the negative electrode end and are electrically connected in sequence. According to the invention, 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 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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