Converter valve thyristor level high-low voltage function test device

A technology of thyristor-level and functional testing, which is applied in the direction of measuring devices, single semiconductor device testing, measuring electricity, etc., can solve problems such as thyristor-level testing instruments that have not been developed independently, and achieve the effect of automatic testing

Pending Publication Date: 2021-01-26
XUJI GRP +1
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  • Claims
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Problems solved by technology

[0003] At present, domestic high-voltage direct current transmission is in a period of rapid development. There are more than 30 direct current transmission projects that have been completed and put into operation. Reliable and fully functional HVDC converter valve equipment thyristor-level functional test plan and test instruments are particularly urgent

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  • Converter valve thyristor level high-low voltage function test device
  • Converter valve thyristor level high-low voltage function test device
  • Converter valve thyristor level high-low voltage function test device

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0040] figure 1 It is a block diagram of a thyristor level high and low voltage functional testing device for a converter valve provided by an embodiment of the present invention.

[0041] figure 2 It is a schematic circuit diagram of a thyristor level high and low voltage functional testing device for a converter valve provided by an embodiment of the present invention.

[0042] image 3 It is a flow chart of the th...

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Abstract

The invention discloses a converter valve thyristor level high-low voltage function test device. The converter valve thyristor level high-low voltage function test device comprises a plurality of switches, a high-voltage function loop module, a low-voltage function loop module and a control board card are controlled through the switches, the high-voltage function loop module and the low-voltage function loop module are connected in parallel and then are connected with the input end of the output loop module; the output end of the output loop module is connected with the thyristor level of thetest object; and the control board card is connected with the input ends of the high-voltage function loop loop module and the low-voltage function loop module, is also connected with a control unit of the test thyristor level, and performs a low-voltage trigger test, a high-voltage du / dt test and / or a BOD test on the test thyristor level through logic control. Through the control logic, not onlycan the subentry test of a high-voltage function and a low-voltage function be realized, but also the automatic test of the high-voltage function and the low-voltage function can be realized, and thetest of a thyristor-level low-voltage trigger function, a high-voltage du / dt function and a high-voltage BOD function is realized.

Description

technical field [0001] The invention relates to the technical field of power equipment testing, in particular to a thyristor level high and low voltage function testing device for a converter valve. Background technique [0002] Converter valve equipment is one of the core equipment of (ultra) high voltage direct current transmission, and its performance directly affects the reliability and stability of direct current system operation. The converter valve equipment adopts a modular design and consists of several valve components, each valve component contains multiple thyristor stages, that is, each thyristor stage is the smallest basic unit of the converter valve. The thyristor level mainly includes functional components such as thyristors, damping resistors, damping capacitors, voltage equalizing resistors, and thyristor control units. The functional tests mainly include low-voltage trigger tests, high-voltage du / dt tests, and high-voltage BOD tests. [0003] At present, ...

Claims

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Application Information

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IPC IPC(8): G01R31/26G01R31/27
CPCG01R31/263G01R31/2601G01R31/27
Inventor 范彩云王晓民李旭升李志伟李凯董意锋罗鹏毕延河邱文龙王超
Owner XUJI GRP
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