A low-voltage test system for the vvvf phase module of a subway train

Abstract

The invention discloses a low-voltage testing system for a VVVF phase module of a subway train, which includes: a system power supply module for supplying power to the VVVF phase module to be tested and a system control module; a system control module including a first controller unit and a second The controller unit, the first controller unit is used to receive the user's control information and transmit it to the second controller unit, the second controller unit is used to be responsible for on-site control, to perform real-time testing on the VVVF phase module to be tested and to feed back the test information to The first controller unit; the function detection module, connected with the system control module, for testing the functional state of the VVVF phase module to be tested; the human-computer interaction module, connected with the system control module, for testing the interaction between the system and the user . The invention adopts an independent structure, solves the problem that the subway train VVVF phase module test process is overly dependent on the train, effectively reduces the possibility of the test result being affected by the state of the train itself, and greatly improves the quality and efficiency of the VVVF phase module test work.

Description

technical field [0001] The invention relates to a test system device, which belongs to the technical field of subway train maintenance, in particular to a low-voltage test system for a VVVF phase module of a subway train. Background technique [0002] The VVVF phase module is the core component of the subway train traction system. Its design complexity is high and its technical content is high. It is a fully imported part and the price is expensive. The VVVF phase module is the core execution component used to transform the electric energy obtained by the subway train from the power grid into a form of frequency-regulated and voltage-regulated electric energy that can be controlled by the train traction control system. The VVVF phase module is the main component of the subway train traction system, and plays an extremely important role in ensuring the safe operation of the train. [0003] As the online operation time of subway trains increases, the VVVF phase module works i...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and deficiencies in the prior art, and provide a low-voltage test system for the VVVF phase module of a subway train. The test system adopts an independent structure, which solves the problem that the VVVF phase module test process of the subway train is overly dependent on the train. It effectively reduces the possibility of affecting the test results due to the state of the train itself, and greatly improves the quality and efficiency of the VVVF phase module test work

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