Closed-loop on/off submodule test equipment for direct current circuit breaker
A DC circuit breaker, on-off technology, applied in the field of DC circuit breaker closed-loop on-off sub-module test, can solve problems such as undisclosed technologies, and achieve the effects of wide application scenarios, meeting test requirements, and convenient operation
Pending Publication Date: 2019-10-15
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +1
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[0030] In order to make the purpose and technical solutions of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0031] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as those commonly understood by those of ordinary skill in the art to which the present invention belongs. It should also be understood that terms such as those defi...
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The invention discloses closed-loop on / off submodule test equipment for a direct current circuit breaker. The test equipment comprises a test controller, a communication interface DBC&VBC, an integration driver and a testing circuit, wherein a user instruction is received through the test controller; according to the user instruction, a control signal is correspondingly output to the testing circuit and the communication interface DBC&VBC to drive the testing circuit and the communication interface DBC&VBC to output various types of signals to trigger the main branch or transfer branch submodule of a direct current circuit breaker to be tested; the main branch or transfer branch submodule of the triggered direct current circuit breaker outputs a corresponding voltage or current signal; andthe test controller obtains the signal through the testing circuit to be analyzed so as to realize the judgment of the state of the direct current circuit breaker. The test equipment has the advantages of being simple, easy in implementation and convenient in operation, can test a full-bridge module and a mechanical switch and has a wide application scene.
Description
Technical field [0001] The present invention relates to the technical field of direct current transmission, in particular to a test technique of a closed-loop opening and closing submodule of a DC circuit breaker. Background technique [0002] The DC circuit breaker is a key device for constructing a DC grid. DC fault protection is the technical bottleneck faced by the construction of DC grid, and DC circuit breaker is an important device to realize the control and protection of flexible DC grid. By selectively breaking the DC circuit breaker circuit, it can realize the rapid isolation of the faulty line to maintain the continuous operation of other parts of the system and ensure the reliability of the DC grid operation. [0003] In the process of DC circuit breaker engineering research and development and engineering application, it is inevitable to carry out the circuit breaker closed-loop opening and closing sub-module test. This test verifies whether the DC circuit breaker is...
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IPC IPC(8): G01R31/327
CPCG01R31/327
Inventor 陈龙龙高冲张宁周万迪单云海李弸智张升张晓青刘远
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD