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Fast detection method for electric vehicle charger failure

A detection method and electric vehicle technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of redundant and complex detection process, high repetition rate of test steps, and cumbersome test process in fixed test stations, so as to achieve convenience and safety Efficient operation and maintenance, concise test process, and rapid detection effect

Active Publication Date: 2018-03-06
STATE GRID TIANJIN ELECTRIC POWER +1
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AI Technical Summary

Problems solved by technology

[0003] Existing fixed test stations have redundant and complex testing processes, which must be strictly implemented in accordance with the strict requirements of the network access test in the standard. The repetition rate of test steps is high and the test process is cumbersome.
However, on-site inspection tests focus on fault testing and require fast and convenient testing, which cannot be met by existing testing schemes

Method used

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  • Fast detection method for electric vehicle charger failure
  • Fast detection method for electric vehicle charger failure
  • Fast detection method for electric vehicle charger failure

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Embodiment Construction

[0020] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0021] In order to shorten the test time and simplify the test process, the present invention rationally arranges the test process according to the real-time output state of the charger to be tested. Listed in Table 1 are the charger detection test items specified in the standard.

[0022] Table 1 Detection test of electric vehicle charger

[0023]

[0024] The present invention divides all tests according to the different loads required for the test. According to the different test steps of the test items and the preparatory conditions for the test, the 22 test tests are divided into: 3 tests that do not require loads; 7 tests that require rated loads Test; 5 tests with random loads; the last 7 tests with variable resistance. The specific classification is shown in Table 2.

[0025] Table 2 Classification of detection tests for electric vehi...

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Abstract

The present invention relates to a quick fault detection method for an electric vehicle charger. Its technical characteristics are as follows: firstly, all tests are divided into tests without load, tests with rated load, tests with random load and variable load tests, and then according to the needs of the same Load experiments are performed on Unity Tests. In the case of testing in strict accordance with the standard, the invention organically combines the fault detection tests of each charger, and the detection process is reasonably arranged according to the real-time output status of the tested charger, avoiding the repeated mode setting of the charger in each test room The opening and closing of the power supply realizes the rapid detection function of the charger fault, shortens the detection time, makes the test process more concise, facilitates the safe and efficient operation and maintenance of the charger, and ensures the power supply reliability and power quality of the grid. The large-scale promotion of automobiles is escorted.

Description

technical field [0001] The invention belongs to the technical field of detection of electric vehicle chargers, in particular to a fast fault detection method for electric vehicle chargers. Background technique [0002] With the large-scale application of electric vehicles, a large number of charging facilities will be put into use, and various operational failures that follow need to be resolved urgently. The traditional test method of electric vehicle charger has heavy workload, complex operation, and long time consumption, which is not conducive to on-site fault detection. Therefore, a rapid test method is urgently needed to check the fault of charger in time. This will help to find and solve problems in time, and is of great significance to the safe operation of charging equipment and the popularization of electric vehicles. [0003] Existing fixed test stations have redundant and complex testing processes, which must be strictly implemented in accordance with the strict...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 李国栋赵新刘亚丽吕金炳徐志丹陈子旸胡晓辉纪明苏靖宇
Owner STATE GRID TIANJIN ELECTRIC POWER
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