Hybrid Power Supply System for Urban Rail Vehicles

Abstract

The invention provides a hybrid power supply system for an urban rail vehicle. In an area with an electric energy transmission component, a base station power supply is used as a power supply; and in an area without the electric energy transmission component, a capacitor is used as the power supply; therefore, hybrid power of non-contact electric energy transmission technology and the capacitor is realized, electric energy is transmitted between the power supply and a load through a non-mechanical connecting method, and stable power can be provided to the vehicle in a no-voltage area, in which electric energy transmission equipment is inconvenient to lay, so that the vehicle is supplied with power continuously and the running of the vehicle is ensured. And meanwhile, as the vehicle is completely powered by the electric energy and electromagnetic energy, the hybrid power supply system for the urban rail vehicle, provided by the embodiment, not only can work under a normal environment but also can work in special environments such as flammable and combustible environments and the like; and moreover, exhaust gas which causes environmental pollution cannot be generated in the working process so that the hybrid power supply system for the urban rail vehicle is energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of hybrid power, in particular to a hybrid power supply system for urban rail vehicles. Background technique [0002] Hybrid power refers to vehicles that require more than two power sources for power supply. In the urban rail transit industry, commonly used hybrid power supply technologies include: internal combustion power and battery hybrid power supply technology, power supply network and supercapacitor hybrid power supply technology. [0003] Internal combustion power and battery hybrid power supply technology is a kind of oil-electric hybrid technology, such as figure 1 As shown, the three-phase alternating current is generated by the diesel generator set, and the three-phase alternating current is rectified by the rectifier and then output as direct current. Since the output voltage of the battery pack will gradually decrease during the loading process, the output of the battery pack needs to go throu...

AI Technical Summary

Problems solved by technology

[0005] For the above-mentioned prior art, the diesel engine generator set will produce huge noise, and a large amount of thick smoke and exhaust gas during the working process, which will pollute the environment, and the charging speed of the battery pack is slow; while the power supply network usually uses a pantograph Because the head of the pantograph is a carbon brush, sparks will be generated during the friction with the power supply network, which can easily cause accidents in special flammable and explosive occasions.

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