Tractive power supply system of urban rail vehicle

Abstract

The invention provides a tractive power supply system of an urban rail vehicle. An accumulator cell tractive button, a pantograph position button and a current collector position button are arranged on the urban rail vehicle. Three schemes of current collector current power supply, pantograph current power supply and accumulator cell power supply are integrated. The general urban rail vehicle uses a current collector for power supply during main track operation, uses pantograph for the power supply after entering a garage, and uses an accumulator cell for power supply after entering a nonelectric area because of the error operation of a driver. Therefore, the tractive power supply system provided by the invention can be switched to be at an appropriate power supply mode so as to improve the generality of vehicle use. Especially when the vehicle enters the nonelectric area, the urban rail vehicle can continuously travel under the mode of accumulator cell power supply without need of other rescue vehicles, and therefore, rescue tasks can be saved, and the occupancy time of the rescue vehicles on a main train operation track is reduced so as to improve the operation efficiency of the urban rail vehicle.

Description

technical field [0001] The invention relates to the technical field of urban rail vehicles, in particular to a traction power supply system for urban rail vehicles. Background technique [0002] At present, domestic traction systems for urban rail vehicles are mainly pantograph catenary current traction or current collector third rail current traction, and the power supply voltage is DC1500V or DC750V. [0003] In the prior art, a pantograph or a current collector is installed on the urban rail vehicle. When the vehicle is running normally, the vehicle inputs high-voltage electricity to the vehicle through the pantograph or current collector, and the high-voltage electricity drives the vehicle to run. . However, when the vehicle receiving current from the pantograph enters a line without catenary power supply but with third-rail power supply, or when the vehicle with current receiver enters a line without three-rail power supply but with catenary power supply, or when In t...

AI Technical Summary

Problems solved by technology

However, when the vehicle receiving current from the pantograph enters a line without catenary power supply but with third-rail power supply, or when the vehicle with current receiver enters a line without three-rail power supply but with catenary power supply, or when When the vehicle is in an emergency, for example, when entering a dead zone, the vehicle will not be able to operate due to the loss of power source

At this time, we can only wait for the rescue vehicle to come to the rescue, which will take up a lot of running time of the main line, and eventually cause the reduction of vehicle operation efficiency

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