Electric train power supply control method and system and electric train

Abstract

The invention provides an electric train power supply control method and system and an electric train. The electric train power supply control method is applied to an electric train power supply system; the electric train power supply system comprises a super capacitor, a fuel cell and at least one energy controller, the super capacitor and the fuel cell are electrically connected to the energy controller, and the energy controller is used for respectively controlling the working states of the super capacitor and the fuel cell; and the method includes the steps that the energy controller acquires the current motion state of an electric train, and the energy controller determines the working states of the super capacitor and the fuel cell according to the electric train motion state. By means of the electric vehicle power supply control method, an existing electric train power supply system is greatly simplified; a high-efficiency discharge interval of the fuel cell and the charge-discharge characteristics of the large-capacity super capacitor are used, corresponding design is carried out for power allocation of the fuel cell and the super capacitor under different running working conditions, the power supply system is simpler in control, and the electric train running energy consumption is comprehensively reduced.

Description

technical field [0001] The invention relates to the technical field of new energy trams, in particular to a tram power supply control method, system and tram. Background technique [0002] In recent years, severe environmental pollution, depletion of oil resources and global warming have forced people to seek technological breakthroughs in the field of new energy power systems. In order to achieve the goal of friendly and coordinated development of human beings, the environment, and trams, all countries in the world are actively exploring new energy sources, and new energy sources will inevitably become the development trend of trams in the future. [0003] Among them, many cities in China have begun to plan and build trams, and set up non-grid areas in important sections to protect the urban landscape; while abroad, companies such as Siemens, Alstom, Bombardier, Ansaldo, and Cafu Nearly a thousand partially low-floor and 100% low-floor hybrid light rail vehicles have been ...

AI Technical Summary

Problems solved by technology

The power supply scheme is relatively complicated, especially when multiple systems are running in parallel, more DC / DC converters are required for voltage stabilization control, which causes trouble in the balance control of the power supply system, and the system volume and weight are very large.

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