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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

Active Publication Date: 2018-04-20
NARI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a charging device for the supercapacitor of the tram, and solve the technical problem of harmonic pollution to the power grid by the rectifier in the prior art

Method used

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  • A charging device and charging method for a tram supercapacitor
  • A charging device and charging method for a tram supercapacitor
  • A charging device and charging method for a tram supercapacitor

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0028] Such as figure 1 As shown, the main circuit of the charging device for the tram supercapacitor includes a transformer whose primary side is connected to a three-phase AC power supply, and the secondary side of the transformer is connected to two independent rectification and voltage regulation circuits. The rectification and voltage regulation circuit includes sequentially connected: LCL filter capacitor module, PWM rectifier bridge module and DC / DC converter module. The DC / DC converter module is connected to the isolation switch cabinet through clamping diodes, and the output of the isolation switch cabinet is connected to the supercapacitor bank of the tram; the DC / DC converter modules...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/34H02M1/12H02M1/42H02M7/217H02M3/155
CPCH02J7/345H02M1/12H02M1/42H02M3/155H02M7/217Y02B70/10
Inventor 朱玲石磊邵宜祥苏秀娥田炜孙祖勇卫泽
Owner NARI TECH CO LTD
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