Method and system for quickly turning off bidirectional thyristor
A bidirectional thyristor, thyristor technology, applied in the output power conversion device, electrical components, reactive power compensation and other directions, can solve problems such as damage to the thyristor, difficulty in current direction detection, and inability to achieve fast turn-off.
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[0044] Specific embodiments of the present invention will be described in detail below in conjunction with specific drawings. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be regarded as isolated, and they can be combined with each other to achieve better technical effects.
[0045] figure 1 A schematic diagram of the overall structure of a bidirectional thyristor fast turn-off system according to an embodiment of the present invention is shown.
[0046] In a specific embodiment, the bidirectional thyristor rapid shutdown system includes a three-phase grid, a bidirectional thyristor, a load LOAD, a three-level inverter, an LC filter unit, a voltage and current detection unit, and a capacitor energy storage unit. The positive input terminal of the three-phase grid voltage is connected to one end of the three groups of bidirectional thyristors abc, and the other ends of the three groups of ...
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