Power supply system and power supply control method of debugging locomotive

Abstract

The invention discloses a power supply system and a power supply control method of a debugging locomotive. The power supply system comprises a diesel engine, a generator, a rectifier, an excitation controller, a first DC / DC conversion module, a second DC / DC conversion module, a first storage battery, a traction converter and an auxiliary converter. When the generator outputs three-phase alternating current, the three-phase alternating current output by the generator charges the first storage battery and supplies power to the excitation controller, the traction motor, the alternating current load and the direct current load. And when the diesel engine does not work, the generator does not output three-phase alternating current, and the first storage battery is controlled to be in a discharging state, the electric energy output by the first storage battery supplies power to the traction motor, the alternating current load and the direct current load. According to the technical scheme, stable power supply of the whole vehicle can be achieved, and troubles caused by the fact that an exciting transformer and an isolation transformer are large in size and heavy in weight in the prior art can be avoided.

Description

technical field [0001] The present application relates to the technical field of locomotive power supply, in particular to a power supply system and a power supply control method of a dispatching locomotive. Background technique [0002] Rail transit occupies an important position in public transportation. It has the characteristics of fast speed, large transportation capacity, and electric energy traction. It can facilitate people's travel, save time, alleviate traffic congestion, and has less environmental pollution, energy saving and environmental protection. [0003] Rail transit mainly includes high-speed railway and normal-speed railway. Passenger cars and freight cars in general-speed railway transportation do not have their own power, and the vehicles entering and leaving the platform and marshalling are all pulled by shunting locomotives. The power supply system is an important part of the electrical system of the shunting locomotive. The power supply system suppli...

AI Technical Summary

Problems solved by technology

[0004] The power supply system of the existing shunting locomotive (such as figure 1 The excitation transformer and isolation transformer shown in ) are used to stabilize the output voltage, however, the excitation transformer and isolation transformer are large in size and heavy in weight, which causes inconvenience in actual use

Moreover, when the isolation transformer is working, it produces relatively large noise, which affects the normal work and rest of the drivers and passengers, and even endangers the health of the drivers and passengers.

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