Power module cascade connection converter valve

A technology for power modules and converter valves, applied in the field of converter valves, can solve problems such as IGBT import restrictions, and achieve the effects of avoiding tip discharge, convenient power expansion, and compact overall structure

Active Publication Date: 2008-07-16
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the converter valve body in the form of cascaded power modules with the core of the turn-off device IGBT (insulated gate bipolar transistor) has been widely used in high-voltage and large-capacity power electronic equipment, but the high-voltage level (2500V and above) The import of IGBT is restricted; at the same time, the existing power module cascaded converter valve cabinet usually adopts the frame structure of epoxy insulating board. To meet the requirements of insulation coordination, the overall volume must be increased

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  • Power module cascade connection converter valve
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Embodiment Construction

[0010] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0011] As shown in Figure 1, the power module cascade converter valve of the present invention includes a cabinet body 1, and the cabinet body 1 is composed of multiple groups of single cabinets 11 connected according to the cascading number of power modules 2, and multiple groups of single cabinets 11 are arranged side by side Placement, from the outside, the individual cabinets 11 are independent, but internally, the individual cabinets 11 are connected. In each single cabinet 11, upper, middle and lower three-layer module frames 12 are arranged. On the two lower corners of each module frame 12, two slide rails 121 are installed. The power module 2 , the power module 2 can slide along the slide rail 121 . The power modules 2 in the upper, middle and lower module frames 12 of the same single cabinet 11 are respectively set to three phases A, B, and ...

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Abstract

The invention relates to a power module cascading inversion valve, which is characterized in that: the valve comprises a cabinet body consisting of a plurality of single cabinets, wherein each single cabinet is divided into three layers of module frames, each layer of module frame is provided with a detachable power module, and the power modules and the power modules and the module frames are all supported and connected through insulators; slide rails are arranged in the module frames, the power modules are arranged movably on the slide rails, and wire fasteners capable of fixing the three-phase alternating current incoming cables of the power modules are arranged on the bottoms of the module frames. The invention meets the press resistant requirements with compact structure, orderliness and good appearance; the invention enables free arrangement of the cascading number of the power modules according to the requirements of power grade, thereby bringing about very convenient power expansion.

Description

technical field [0001] The invention relates to a converter valve, in particular to a power module cascaded converter valve. Background technique [0002] At present, the converter valve body in the form of cascaded power modules with the core of the turn-off device IGBT (insulated gate bipolar transistor) has been widely used in high-voltage and large-capacity power electronic equipment, but the high-voltage level (2500V and above) The import of IGBTs is restricted; at the same time, the existing power module cascaded converter valve cabinets usually adopt the frame structure of epoxy insulating boards. To meet the requirements of insulation coordination, the overall volume must be increased. Therefore, the current task is: to make the power modules with the same functional structure manufactured by low-voltage power devices (1700V and below), through the coordinated control of the control system, to achieve an AC voltage output of more than several thousand volts, Among t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H02B1/00H02B1/01H02B1/052H02B1/50H05K7/02H05K5/02
Inventor 蒋晓春李志麒王承民邓占锋李奇睿赵小英刘亚萍
Owner CHINA ELECTRIC POWER RES INST
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