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I-type three-level structure direct-parallel power module of energy storage converter

A technology for energy storage converters and power modules, which is applied to the transformation of equipment structural parts, conversion of AC power input to DC power output, installation of support structures, etc., which can solve the complex structure, high cost, and difficult maintenance of circuit topology modules, etc. question

Pending Publication Date: 2020-12-18
四川科陆新能电气有限公司
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Problems solved by technology

[0004] The main purpose of the present invention is to provide an energy storage converter I-type three-level structure direct-parallel power module, which aims to solve the technical problems of complex circuit topology and module structure, high cost and difficult maintenance in the prior art

Method used

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  • I-type three-level structure direct-parallel power module of energy storage converter
  • I-type three-level structure direct-parallel power module of energy storage converter
  • I-type three-level structure direct-parallel power module of energy storage converter

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specific Embodiment approach

[0030] Such as figure 2 As shown in FIG. 1 , it is a schematic diagram of an electrical principle diagram of a direct-parallel power module based on an I-type three-level structure according to the first embodiment of the present invention.

[0031] Such as image 3 , Figure 4 As shown, a schematic diagram of the overall structure of a direct-parallel power module based on the I-type three-level structure of the first embodiment of the present invention. The type selection of the radiator 5 pays attention to the combination of the structure, so that the contact surface of the IGBT of the radiator 5 and the positive and negative contact surfaces of the capacitor are on the same plane, so that the laminated busbar can be designed in a plane, and combined with the five-way stacked four-layer scheme, Make the structure of a single module compact and compact.

[0032] Such as Figure 4 As shown, the power module system decomposition structure schematic diagram of the third em...

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Abstract

The invention discloses an I-type three-level structure direct-parallel power module of an energy storage converter, which is designed to be a high-power three-level module with a simple structure while a power module system considers sufficient heat dissipation, realizes 1.5-2 MW-level energy storage converter design, and is ingenious and compact in structural design. The IGBT parallel structurewith two mirror images and the unique laminated busbar loop design achieve current sharing and solve the problem of complex loop trend at the same time, the planar design scheme enables assembly to besimple, occupation of the size of the module structure is reduced, and the copper bar assembly is convenient to maintain and design, and aftersale is facilitated. The technical problems that in the prior art, a module is complex in structure, high in cost and difficult to maintain are solved.

Description

technical field [0001] The invention relates to the field of new energy technologies such as energy storage converters, and in particular to an energy storage converter I-type three-level structure direct parallel power module. Background technique [0002] Among the existing energy storage converter products, such as figure 1 shown. When the three-level structure circuit needs to be connected in parallel, the IGBTs are generally connected in parallel after passing through the reactor. The design requirements for the current sharing of the parallel IGBTs are low, but reactors and control systems with the same number of parallel connections are required. The circuit structure is complex and the control system Complicated and expensive. At the same time, the I-type three-level module has more components and uses more film capacitors than ordinary modules. It is difficult to design modules to meet the market demand for compact energy storage converters. Therefore, how to ach...

Claims

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Application Information

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IPC IPC(8): H02M7/00H02M7/483H02M7/493H05K7/14H05K7/20H05K5/02
CPCH02M7/003H02M7/483H02M7/493H05K5/0213H05K7/1432H05K7/2089
Inventor 陈琳琳郭鹏亮贺宗攀张自学
Owner 四川科陆新能电气有限公司
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