Self-cooled thyristor valve of high power and mounting vehicle

Abstract

The invention relates to a high-power self-cooled thyristor valve and a vehicle for assembling the same. The invention is characterized in that: a single-phase thyristor valve body comprises two thyristor valve string, and insulating tension rods, flanges, radiating fins, high-potential trigger plates, energy-taking magnetic rings, high-voltage energy-transmitting cables and a plurality of retaining nuts which are symmetrically distributed; every two thyristors are in positive and negative parallel connection with each other through flexible cables on the radiating fins to form a thyristor valve unit; a plurality of thyristor valve units form a thyristor valve string through parallel connection and upright stacking; radiating fins are pressed between each layer of thyristor valve units atintervals; the two thyristor valve strings form a single-phase thyristor valve through positive and negative parallel connection; both ends of the insulating tension rods are respectively fastened between an upper flange and a lower flange through the retaining nuts; the high-voltage energy-transmitting cables are connected to the inside of the thyristor valve body through the energy-taking magnetic rings of the high-potential trigger plates; the single-phase thyristor valve body inputs and outputs current through two moving contacts; the two moving contacts and the thyristor valve body are fixed together through copper bars which are fixed on the upper end and the lower end of the insulating tension rods through the flanges; and annealed copper sheets which are communicated with the radiating fins are arranged on the copper bars.

Description

Technical field [0001] The invention relates to a solid-state switch in a high-voltage power supply facility, in particular to a high-power self-cooling thyristor valve in the solid-state switch and an installation vehicle thereof. Background technique [0002] With the development of science and technology and the improvement of human power quality requirements, medium and high-voltage high-power power electronic equipment will be widely used. In the field of power electronic equipment, electrical components such as thyristors, insulated gate power transistors (IGBTs), diodes, etc., all mainly work in the switching state, and perform periodic conversions in different dynamic and static processes. In each process of conversion, the switching element itself will generate power loss, so the heating phenomenon is serious. If the heat can not be taken away by the heat dissipation system as soon as possible, it will inevitably affect the normal operation of the switching element. If ...

AI Technical Summary

Problems solved by technology

Its disadvantage is that the equipment is bulky, the leads are long, and the distribution parameters are too large, which may affect the transient performance of the entire system

At present, the thyristor valve with separate structure generally adopts a horizontal fixed structure, which requires a special valve chamber to be installed, so there are defects such as not easy to maintain and update components.

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