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Compact intelligent converter valve

A converter valve, a compact technology, applied in the direction of converting AC power input to DC power output, output power conversion device, conversion equipment structural parts, etc., can solve problems such as thyristor damage, and achieve the effect of reducing the risk of damage

Active Publication Date: 2019-12-03
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the arrester in the valve tower is arranged outside the converter valve module, and the potential of the shielding cover is connected to the main circuit, resulting in damage to the thyristor in the main circuit.

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Embodiment Construction

[0107] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0108] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides a compact intelligent converter valve. The compact intelligent converter valve comprises a valve module with a shielding type pressure equalizing function, a multipoint multi-physical intelligent online monitoring device capable of resisting commutation failure and key parts with compact design. The intelligent online monitoring device comprises a multi-physical-quantity miniaturized intelligent online monitoring device for resisting commutation failure and key components. The compact intelligent converter valve is advantaged in that commutation failure of a converter valve can be rapidly determined within 1.5 ms, commutation failure resistance capability of the converter valve is enhanced, operation states of key parts of the converter valve are monitored in real time, various safety problems and fault hidden troubles of equipment can be timely and effectively discovered, and safe and reliable operation of the converter valve is guaranteed. According to the compact intelligent converter valve, key components such as a thyristor press-fitting mechanism, a saturable reactor and an integrated resistance radiator are designed compactly, the occupied area of a valve hall and the engineering construction cost can be greatly saved, and the occupied area of the valve hall can be reduced by 17%.

Description

technical field [0001] The invention relates to the technical field of direct current transmission, in particular to a compact intelligent converter valve. Background technique [0002] The converter valve is the core equipment of the DC transmission project. By sequentially connecting the three-phase AC voltage to the DC terminal, the desired DC voltage is obtained and power control is realized. [0003] In the prior art, the potential of the converter valve shield is fixed on the main circuit, and the stray capacitance generated on the shield will affect the voltage division of the components on the main circuit in the converter valve module, resulting in uneven voltage division of the devices , this unevenness will distort and destroy the thyristor voltage on the main circuit under the impact of steep waves. Contents of the invention [0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the arre...

Claims

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Application Information

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IPC IPC(8): H02M7/00H02M1/32H05K7/20
CPCH02M1/32H02M7/003H05K7/20927H01L23/473H02M7/00H05K7/20
Inventor 高冲汤广福王华锋周建辉贺之渊王治翔盛财旺张静张娟娟王航查鲲鹏
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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