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Vehicle-mounted inversion device for different input voltages

A technology of inverter device and input voltage, which is applied in the direction of output power conversion device, DC power input conversion to DC power output, adjustment of electrical variables, etc. and management difficulty and cost to achieve high power output, improve power conversion efficiency, and reduce switching losses.

Inactive Publication Date: 2016-07-13
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In practical applications, electric locomotives have two different voltage levels of DC750V and DC1500V, and the existing inverter modules cannot be applied to both voltage levels at the same time.
It makes it necessary to design and manufacture corresponding inverter modules for different application environments, which increases the difficulty and cost of design, commissioning, manufacturing and management

Method used

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  • Vehicle-mounted inversion device for different input voltages
  • Vehicle-mounted inversion device for different input voltages
  • Vehicle-mounted inversion device for different input voltages

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0027] Such as figure 2 As shown, in this embodiment, a vehicle-mounted inverter device applicable to different input voltages includes at least two conversion module groups 1 and a connection mode switching module 2, the input terminals of the conversion module groups are connected to the connection mode switching module 2, through The switching of the connection mode switching module 2 realizes the serial or parallel connection of the input ends of the transformation modules, and the parallel connection of the output ends of the transformation module group 1 . The conversion module group 1 includes a step-up circuit module 11 , an inverter circuit module 12 and a secondary rectification circuit module 14 connected in series. The conversion module group 1 als...

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Abstract

The invention discloses a vehicle-mounted inversion device for different input voltages. The device comprises at least two conversion module groups and a connecting way switching module. The input terminals of the conversion module groups are connected with the connecting way switching module. Series connection or parallel connection of the input terminals of the conversion modules is realized based on switching of the connecting way switching module; and output terminals of the conversion module groups are connected in parallel. According to the invention, the device can be applied to a power grid with different input voltages. Switching becomes flexible; the switch loss is low; and the electric energy conversion efficiency is high.

Description

technical field [0001] The invention relates to an electric energy conversion device, in particular to a vehicle-mounted inverter device applicable to different input voltages. Background technique [0002] Track electric locomotives such as railways, high-speed railways and subways, as the main equipment of transportation, play an important role in the construction of the national economy. The auxiliary power supply equipment of the electric locomotive provides power for the AC power equipment of the whole vehicle, and is an indispensable and important part of the transportation equipment. The inverter module is a reused part of the auxiliary power supply, and its applicable electrical environment directly determines the application field of the auxiliary power supply equipment; its volume and power consumption also determine the overall size and efficiency of the auxiliary power supply. [0003] figure 1 It is a common electrical structure of auxiliary power supply equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335
CPCH02M3/33569H02M1/0058H02M1/0067H02M1/0074
Inventor 张小勇张庆刘清赵清良饶沛南楚艳花赵明锐
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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