Compact air-cooled static frequency converter power cabinet
A frequency converter, compact technology, applied in the field of compact air-cooled static frequency converter power cabinet, can solve the problems of difficult maintenance, large power cabinet, complicated main circuit wiring, etc., to achieve simple main circuit wiring, small size, Effect of reducing inspection and maintenance space
Active Publication Date: 2020-12-29
CHANGZHOU BORI ELECTRIC POWER AUTOMATION EQUIP +2
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is: to overcome the problems that the existing static inverter power cabinet is too large, the wiring of the main circuit is complicated, and the maintenance is difficult. The present invention provides a compact air-cooled static inverter power cabinet. Reasonable crimping method, mixing and crimping the thyristors of one phase of the machine bridge and network bridge into a thyristor valve string, and installing the three-phase hybrid crimping type thyristor valve strings in a power cabinet, which makes the main circuit wiring easier and greatly The size of the power cabinet is reduced, and the inspection and maintenance are more convenient
Method used
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Embodiment 1
[0024] Embodiment 1: as Figure 1 to Figure 6 As shown, the present invention proposes a compact air-cooled static frequency converter power cabinet, including a cabinet body 0, three hybrid crimped thyristor valve strings 9, a fan 7, an air duct, and AC and DC copper bars 17. Hybrid crimping type thyristor valve string 9 is vertically installed on the right front side of cabinet body 0, the bottom of hybrid crimping type thyristor valve string 9 is fixed on the base beam 16 of cabinet body 0, and the top of thyristor valve string 9 passes through top beam 14 It is connected and fixed with the side beam 13 of the cabinet body. Two fans 7 are superimposedly installed on the left side of the thyristor valve string 9. The upper and lower ends of the fan 7 are fixed by the first beam 12 and the base beam 16 respectively. The radiator 26 in 9 is connected with the volute 8 of the blower fan after being connected to each other to form a closed air duct. The AC and DC copper bars 1...
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The invention discloses a compact air-cooled static frequency converter power cabinet comprising a cabinet body; a hybrid crimping type thyristor valve string, a fan, an air duct and an AC / DC copper bar are arranged in the cabinet body, and the thyristor valve string is formed by hybrid crimping of thyristors of a phase of a machine and a phase of a network bridge into one valve string according to phase sequence distinguishing; the thyristor valve string is vertically mounted on the right front side of the cabinet body, the fan is arranged on the left side of the thyristor valve string, and the fan is connected with the thyristor valve string through the air duct. The AC / DC copper bar is connected with the thyristor valve string. The problems that an existing static frequency converter power cabinet is too large in size, complex in main loop wiring and difficult to overhaul and maintain are solved.
Description
technical field [0001] The invention relates to a compact air-cooled static frequency converter power cabinet, which belongs to the technical field of cabinet body design. Background technique [0002] The static frequency converter is a frequency converter composed of power devices and DC reactors. It controls the frequency of the power supply by controlling the on and off of the semiconductor power unit, and can smoothly drag the generator rotor from static to rated speed. At present, the main It is used in the field of gas power generation and hydropower generation. [0003] A conventional static frequency converter system usually consists of a control unit, a bridge unit, a bridge unit, a reactor and a switch, where the bridge and the bridge unit are power units. Existing manufacturers of static frequency converters distinguish the thyristors by bridges, press-fit the thyristors on the bridge side and the thyristors on the bridge side respectively, and place them in one...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02M1/00H05K7/20
CPCH02M1/00H05K7/20909H02M7/003
Inventor 张超漫自强张建凯张海龙石祥建刘腾
Owner CHANGZHOU BORI ELECTRIC POWER AUTOMATION EQUIP