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Apparatus for testing electrical energy storage systems

A voltage and circuit technology, which is applied in the field of testing electric energy storage systems, can solve the problems of increasing the switching workload of three-level inverters, achieve high switching frequency, high dynamic characteristics, and improve the effect of dynamic characteristics

Active Publication Date: 2021-08-03
AVL LIST GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using a three-level inverter has the disadvantage of increasing switching workload

Method used

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  • Apparatus for testing electrical energy storage systems
  • Apparatus for testing electrical energy storage systems
  • Apparatus for testing electrical energy storage systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The three-phase power supply voltage is divided into two secondary paths in the three-phase transformer 1, with a primary side 11 and two secondary circuits 4, 5. The two secondary paths each form a separate power path for generating the required switch DC voltage.

[0030] Each individual power path includes a rectifier module MR and a DC-DC converter STDC, whereby the rectifier module MR + 6 and DC-DC converter STDC + 8 are set in the upper power path, rectifier module MR-7 and DC-DC conversion The STDC-9 is set in the lower power path, whereby the two rectifier modules 2 and the two DC-DC converter 3 can generally be the same type for supporting the symmetric load. The reference potentials 15, 17 of the two rectifier modules 6, 7 are connected together. The two DC voltage converters STDC + 8 and STDC-9 are connected in series in the output side to produce the desired high output at the output of the DC voltage converter 3 outputs 18, 19 or the DC voltage converter 3. Vol...

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PUM

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Abstract

The invention relates to a device for generating a switching electrical direct voltage comprising a transformer, a rectifier module (2) and a DC-DC voltage converter module (3), wherein the transformer (1) has a first secondary circuit (4) and The second secondary circuit (5), the first secondary circuit (4) has a downstream first rectifier (6), the second secondary circuit (5) has a downstream second rectifier (7), the first rectifier (6) has The downstream first switching DC-DC voltage converter (8), the second rectifier (7) has a downstream second switching DC-DC voltage converter (9), the downstream DC-DC voltage converters (8, 9) are implemented as two step-down converter. The invention also relates to the use of the device for testing electrical energy storage systems.

Description

Technical field [0001] The present invention relates to a means for generating a switch DC voltage comprising a transformer, a rectifier module, and a DC voltage converter module. The invention also relates to the use of the device for testing the electrical energy storage system. Background technique [0002] Existing technical devices for testing the power storage system, in particular the battery test system, particularly, particularly electrical energy storage systems for testing electric vehicles. The battery system is run to operate as high as possible to save the cross section of the vehicle cable to save costs and weight. For test equipment, this requires a switch to test DC voltage in 1000V and above. This also applies to the simulation of this energy storage system. [0003] For this purpose, it is known to connect the rectifier module to the secondary side of the transformer and generate the desired switch DC voltage through the switch DC voltage converter. [0004] In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/25
CPCG01R31/36H01M10/4285H02J1/10H02M7/17H02M7/25H02M1/007Y02E60/10
Inventor 罗兰·格罗尔斯蒂芬·尼斯特尔贝格尔奥利弗·考尼格阿洛伊斯·朗曼弗雷德·塞德尔保罗·鲁德尔施托费尔迈克尔·蓬贝格尔
Owner AVL LIST GMBH