A charging device and charging method for a tram supercapacitor

A technology of supercapacitors and trams, applied in battery circuit devices, circuit devices, output power conversion devices, etc., can solve problems such as rectifiers causing harmonic pollution to the power grid
CN105449818BActive Publication Date: 2018-04-20NARI TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NARI TECH CO LTD
Publication Date
2018-04-20

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Abstract

The invention discloses a charging device for a tramcar super-capacitor, comprising two independently operating rectification voltage regulation circuits; the rectification voltage regulation circuits comprise LCL filter capacitor modules, PWM rectifier bridge modules and DC / DC convertor modules which are sequentially connected; the DC / DC convertor modules are connected to an isolation switch cabinet through clamping diodes; the invention also discloses a charging method for the tramcar super-capacitor, comprising: a constant current charging stage and a constant voltage charging stage, after the tramcar super-capacitor is charged to the set value, switching from the constant current charging stage to the constant voltage charging stage, taking the integral output value of a current PI regulator before switching as the integral initial value of a voltage PI regulator after switching, and realizing seamless switching of the two stages.
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Description

technical field

[0001] The invention relates to a charging device for a supercapacitor of a tram, belonging to the technical field of traffic engineering charging. Background technique

[0002] At present, the world's environmental protection and energy problems are becoming more and more prominent. As a new type of transportation using green and clean energy, trams using supercapacitor energy storage as power will be of great help to deal with energy crises and solve environmental pollution problems. Vigorously develop this A clean, efficient and intelligent means of transportation is an inevitable choice in the 21st century. Therefore, how to quickly charge the supercapacitor while meeting its characteristic requirements has become an important problem to be solved urgently.

[0003] At present, the tram charging device mainly adopts the traditional multi-pulse rectification technology. Due to its inherent characteristics, the rectifier has problems such as input voltage ...

Claims

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