Non-electric shunting operation method for electric urban rail vehicle group

Abstract

The invention discloses a non-electric shunting operation method for an electric urban rail vehicle group. An output changeover switch, a transformer, a converter and an output cable are arranged at the output end of a shunting locomotive diesel generating set; a receiving circuit of the urban rail vehicle group is provided with an input interface and an input changeover switch; the output cable is connected to the input interface of the urban rail vehicle group; the output changeover switch and the input changeover switch are arranged at non-electric shunting operation positions; power output by the shunting locomotive diesel generating set is fed into the urban rail vehicle group through the output changeover switch, the transformer, the converter, the output cable and the input changeover switch in sequence and serves as a power supply for running of the urban rail vehicle group. Under the condition of contactless grid power supply of the urban rail vehicle group, the power supply is obtained through a shunting locomotive, the self-running shunting operation of the vehicle group is realized, the frequent phenomena that the vehicle group cannot be dragged uphill and cannot be decelerated and braked downhill during the shunting operation of the vehicle group are eliminated, and a roadbed is free from damage caused by high axle load of a high-power shunting locomotive.

Description

technical field [0001] The invention relates to a non-electric shunting operation method for an electric urban rail vehicle group, and belongs to the technical field of urban rail vehicles. Background technique [0002] In the prior art, internal combustion shunting locomotives are generally used for traction when the contact grid is out of power or when the electric urban rail vehicle group is dispatched on a road section without contact grid. However, many urban rail vehicle groups have many marshalling vehicles and are heavy in weight. During the traction process, a single diesel shunting locomotive often cannot be dragged due to the small axle load and insufficient traction. Even if two shunting locomotives are used at the same time, the phenomenon of being dragged when going uphill and unable to effectively decelerate and brake when going downhill often occurs. This not only has unpredictable operation risks, but also has relatively high operating costs. Since the urb...

AI Technical Summary

Problems solved by technology

However, many urban rail vehicle groups have many marshalling vehicles and heavy weight. During the traction process, it is often impossible to drag a single diesel shunting locomotive due to the small axle load and insufficient traction force.

Even if two shunting locomotives are used at the same time, there will often be a phenomenon that they will not be dragged when going uphill, and cannot be effectively decelerated and braked when going downhill.

This not only has unpredictable operation risks, but also has relatively high operating costs

Since the urban rail subgrade is designed according to the axle load of urban rail vehicles, if a high-power shunting locomotive is used, the excessive axle load will cause damage to the subgrade

Images