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Load device for rail vehicle converter test

A load device and rail vehicle technology, applied in the field of rail transit, can solve problems such as manual calculation, heavy workload of personnel, and potential safety hazards, and achieve the effects of reducing load energy consumption, convenient system maintenance, and high degree of automation

Active Publication Date: 2021-02-02
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the gear load power level has a large dispersion, and manual calculation is required when replacing it, and then the load is configured on site after wiring. During this process, the power supply must be cut off frequently, and safety protection measures must be taken.
This also results in incomplete coverage of load power levels, longer test cycles, heavy workload, and potential safety hazards

Method used

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  • Load device for rail vehicle converter test
  • Load device for rail vehicle converter test
  • Load device for rail vehicle converter test

Examples

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Embodiment Construction

[0031] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0032] Also, in the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without the specific details or in the particular manner described.

[0033] In addition, the steps shown in the flow dia...

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Abstract

The invention discloses a load device for a rail vehicle converter test. The load device comprises a plurality of resistor modules with the same structure; a plurality of inductance modules with the same structure, wherein each inductance module is connected in series with the corresponding resistance module to form a load branch, and each load branch is connected in each phase output branch of the tested converter; and a star-shaped triangular switching module which is connected with each load branch and is used for switching the connection mode of each load branch into star-shaped connectionor triangular connection as required. The load device can realize automatic load matching, can automatically perform load configuration according to different working condition requirements, has multiple modes of voltage selection, power selection, current selection and the like, and can reduce the load energy consumption to the greatest extent and save the cost on the premise of meeting the converter inspection standard.

Description

technical field [0001] The invention relates to the technical field of rail transportation, in particular to a load device used for testing rail vehicle converters. Background technique [0002] According to the requirements of IEC61287-1:2014, more than 10 electrical performance tests, such as temperature rise test, commutation test, noise test, and load mutation test, are required for rail transit rolling stock converters. Due to the inconsistent load requirements of specific test items, it is often necessary to frequently change the load size to meet the test requirements. [0003] In the prior art, the energy consumption load of the converter is composed of resistors and inductors with fixed gears. However, the gear load power level has a large dispersion, and manual calculation is required when replacing it, and then the load is configured on site after wiring. During this process, the power supply must be frequently cut off and safety protection measures must be taken...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R1/02
CPCG01R31/006G01R1/02Y02B70/10
Inventor 李潼清程浩任新旺姜海龙庞辉邹晓阳周小玲黎邦腾邢猛
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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