Heavy-current electronic switch of static and dynamic flow equalization

Abstract

This invention discloses a large current electronic switch equalizing in static and dynamic state including a positive bus, a negative bus and thyristors, in which, the positive bus is composed of a positive conduction plate and two positive boards, the negative bus is composed of a negative board and a conduction plate, multiple pairs of thyristors are symmetrically mounted on the positive plate radially, water-cooling plates are mounted on the thyristors with insulation clamp boards set on the positive conduction plate, thyristor triggers are mounted on the clamp boards, quick fuses in the same number to the thyristors are mounted uniformly on the bottom of the negative conduction plate and water-cooling resistors are set between the quick fuses and the corresponding water-cooling plates.

Description

technical field [0001] The invention relates to a high-current device, in particular to a high-current electronic switch current equalizer. technical background [0002] At present, the main body of the known high-current electronic switch mainly uses the parallel connection of power electronic devices to achieve the purpose of outputting high current, but the installation of the power electronic devices is arranged side by side. Because the parameters of each component are inconsistent, its structure cannot be guaranteed at all. The current consistency of each branch cannot guarantee the dynamic balance of the current of each branch. The mutual interference between the main circuit busbars, between the branches, and between the busbars and the branches is inconsistent. The mutual influence state of the electronic switch is inconsistent, which leads to the current and voltage of each branch at the moment when the electronic switch is turned on and off, and the current and vo...

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Problems solved by technology

[0002] At present, the main body of the known high-current electronic switch mainly uses the parallel connection of power electronic devices to achieve the purpose of outputting high current, but the installation of the power electronic devices is arranged side by side. Because the parameters of each component are inconsistent, its structure cannot be guaranteed at all. The current consistency of each branch cannot guarantee the dynamic balance of the current of each branch. The mutual interference between the main circuit busbars, between the branches, and between the busbars and the branches is inconsistent. The mutual influence state of the electronic switch is inconsistent, which leads to the inconsistency of the current and voltage of each branch when the electronic switch is turned on and off, so that the components are broken down or burned

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