Three-level inverter with safety protection structure
A three-level inverter, safety protection technology, applied in the direction of support structure installation, transformation equipment structural parts, electrical components, etc., can solve the loss, stability, shock resistance, and anti-fall performance, insufficient three-level inverter. Internal components misfire and other problems to avoid damage and ensure stability
Pending Publication Date: 2020-07-31
MAANSHAN TECHN COLLEGE
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Problems solved by technology
[0004] The purpose of the present invention is to provide a three-level inverter with a safety protection structure, which can solve the insufficient safety protection performance of the existing three-level inverter equipped with a safety protection structure, whether it is stable performance or earthquake resistance. The fall performance is insufficient, and it is impossible to deal with it in time when the internal components of the three-level inverter catch fire due to short circuit, overheating or other reasons, which often leads to more serious losses
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[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0030] see Figure 1-5As shown, a three-level inverter with a safety protection structure includes a safety protection structure and an inverter body 7. The safety protection structure includes a first end seat 1 and a second end seat 2. The first end seat 1 and the bottom of the second end seat 2 are provided with a base 9, the first end seat 1 and the second end seat 2 are in a circular structure, and the outer edges of the first end seat 1 and the second end seat 2 are provided with There is a movable rail 23, a tooth g...
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The invention discloses a three-level inverter with a safety protection structure. The inverter comprises a safety protection structure and an inverter body. The safety protection structure comprisesa first end base and a second end base. A base is arranged at the bottom of each of the first end seat and the second end seat; wherein the first end seat and the second end seat are both of an annular structure, the outer edge of the first end seat and the outer edge of the second end seat are each provided with a movable rail, each movable rail is provided with a tooth groove, the first end seatand the second end seat are each internally provided with a damping frame, and the inverter body is installed between the two damping frames. The problems that an existing three-level inverter carrying a safety protection structure is insufficient in safety protection performance, the stability performance and the anti-shock and anti-drop performance are insufficient, the situation that fire breaks out due to short circuit, over-high temperature or other reasons cannot be handled in time for internal elements of the three-level inverter, and therefore more serious losses are often caused, aresolved.
Description
technical field [0001] The invention relates to the field of inverters, in particular to a three-level inverter with a safety protection structure. Background technique [0002] Recently, with the rapid development of high-voltage technology and its expanding application range in the field of industrial control, high-voltage IGBT devices and IGCT devices have expanded their application fields, and the output voltage of the two-level inverter is only ( -V, +V) two levels, for this kind of inverter structure, the harmonic component in the inverter output current is usually reduced by increasing the switching frequency of the switching device in the inverter. However, in high-voltage, high-power industrial applications, the switching frequency of the power devices used must be limited below 1KHz. Therefore, multi-level inverters are born, including three-level inverters. Multi-level inverters are often equipped with safety protection structures, external protection or external...
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IPC IPC(8): H02M7/00A62C3/16A62C13/78A62C99/00H02M7/483
CPCA62C3/16A62C13/78A62C99/0027H02M7/003H02M7/483H05K7/1432
Inventor 夏兴国袁传信缸明义吴彩林宁平华童鑫
Owner MAANSHAN TECHN COLLEGE