Converter valve bridge arm submodule with overvoltage suppression function, control method thereof and converter valve
A technology of overvoltage suppression and converter valves, applied in the field of converter valves, can solve problems such as overvoltage, large equipment investment, and endangering the safety of primary equipment, so as to improve tolerance, reduce overvoltage stress, and have large engineering application potential Effect
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[0036] 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.
[0037] Please refer to figure 1 , The first aspect of the embodiments of the present invention provides a converter valve bridge arm sub-module with an overvoltage suppression function, including: a power circuit and an overvoltage suppression circuit. The power circuit includes: a first bypass switch, a first power device, a second power device, a DC capacitor and a voltage equalizing resistor. The overvoltage suppress...
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