Super capacitor energy accumulating and frequency varying driving electric control system for trolleybus

Abstract

The super capacitor energy accumulating and frequency varying driving electric control system for trolley bus consists of a low voltage head control part and a high voltage system control part. The low voltage head control part is connected to the bus via fiber coupling device, and the high voltage system control part consists of system controller, frequency varying driving controller, etc. on the bus, there are connected system controller and frequency varying driving controller, which is connected to the AC frequency varying speed regulating motor and contained to super capacitor via contactor. Various control commands are fed to the head controller and the head controller communicates via the bus with the system controller and the frequency varying driving controller to control the motor driving in either forward or reverse direction, the brake of the trolley bus and kinetic energy feedback to the super capacitor.

Description

technical field [0001] The invention relates to vehicles, in particular to electrical control technology for electric vehicles, in particular to a variable frequency drive electrical control system, in particular to a supercapacitor energy storage variable frequency drive electrical control system for electric vehicles. Background technique [0002] In the prior art, electric vehicles are widely used due to their advantages of zero pollution, low noise, and high economy. In terms of urban buses and trams, most of the electric drive of urban trackless or trams adopts DC chopper drive mode, and mechanical brakes are used to stop, which cannot realize regenerative feedback electric braking, resulting in large energy consumption and maintenance. At the same time, urban trackless Or the tram is limited by the power supply of the overhead line network, which has poor flexibility and mobility, and the overhead power supply network increases the visual pollution of the urban space. ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem in the prior art to be solved by the present invention is: in the prior art, most of the electrical drives of urban trolleybuses or trams adopt the DC chopper drive mode, and the mechanical brakes are used to stop, and the regenerative feedback type cannot be realized. Electric braking requires a lot of energy consumption and maintenance. At the same time, urban trolley cars or trams are limited by the power supply of the overhead line network, which makes them less flexible and maneuverable. The overhead power supply network increases the visual pollution of urban space.

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