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Intelligentized power module of braking feedback converter

A technology of power module and brake feedback, which is applied in the direction of conversion of AC power input to DC power output, output power conversion device, cooling/ventilation/heating transformation, etc. It can solve problems such as difficulties, power modules cannot be redundantly operated and expanded, etc. , to achieve high power density, strong anti-interference ability, and compact overall structure

Active Publication Date: 2014-01-29
XJ ELECTRIC +1
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Problems solved by technology

[0007] The purpose of the present invention is to provide an intelligent power module of a brake feedback converter to solve the problems that the existing power modules cannot run redundantly and are difficult to expand

Method used

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  • Intelligentized power module of braking feedback converter
  • Intelligentized power module of braking feedback converter

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Embodiment Construction

[0021] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as image 3 Shown is a schematic structural diagram of the intelligent power module of the braking regenerative converter of the present invention. It can be seen from the figure that the intelligent power module includes a power unit and its control system 1 arranged on the radiator, and the lower part of the radiator has an air inlet , the upper part has an air outlet; the power unit includes three-phase power components 10A~10C for connection with the three-phase AC power grid, and a capacitor group, and the capacitor group is fixed on the side of the radiator 2 perpendicular to the connection direction of the air inlet and the air outlet (Fig. The middle is the left side), and the three-phase power components 10A~10C of the power unit are fixed side by side on the surface of the radiator 2 in sequence along the direction perpen...

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Abstract

The invention discloses an intelligentized power module of a braking feedback converter. The intelligentized power module comprises a power unit arranged on a radiator and a control system, an air inlet is arranged on the lower portion of the radiator, an air outlet is arranged on the upper portion of the radiator, the power unit comprises three phase power components and a capacitance set which are used for connection of three phase alternating current power grid, the capacitance set is fixed on one side of the radiator vertical to the communication direction of the air inlet and the air outlet, the three phase power components of the power unit are fixed on the surface of the radiator in parallel, and the control system is mounted on one side of the three phase power components opposite to the radiator. The intelligentized power module of the braking feedback converter adopts modularized design, the control system is mounted on the surface of one side of the three phase power components opposite to the radiator, an IGBT (insulated gate bipolar transistor) driving component accesses to the power unit nearby, and the intelligentized power module of the braking feedback converter is strong in anti-interference capacity, compact in overall structure and high in power density. The modularized design can realize direct parallel connection and redundancy operation of multiple modules, and the normal operation of other modules do not be affected after a single module is cut.

Description

technical field [0001] The invention relates to an intelligent power module of a brake feedback converter. Background technique [0002] With the rapid growth of my country's economy, urban rail transit ushered in a rapid development. The subway regenerative braking feedback converter feeds back the excess energy generated during the braking of subway trains to the AC power grid in the form of inverter feedback, and maximizes the advantages of subway regenerative braking. It is energy-saving, environmentally friendly, stable and reliable, and low in investment. Outstanding advantages are the development direction of regenerative braking energy absorption for subways in the future. [0003] From the perspective of the practical application of the subway, the regenerative braking converter for the subway should have the characteristics of high power (above MW), high power density, and high reliability. Power units generally use power sub-modules for topological connection. O...

Claims

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Application Information

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IPC IPC(8): H02M7/00H05K7/20
Inventor 姚为正张建牛化鹏桑福环刘刚张海龙王俊杰郑月宾
Owner XJ ELECTRIC
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