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High-capacity water-cooling power unit

A power unit, large-capacity technology, applied in electrical components, electric solid-state devices, circuits, etc., can solve the problem of difficult realization of high power density whole machine design, achieve convenient large-area stacking and reduce stray inductance , Conducive to the effect of heat dissipation

Inactive Publication Date: 2016-02-24
TBEA SUNOASIS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the size of the high-voltage large-capacity DC capacitor and the layout of the switching devices, it is difficult to minimize the size of the power unit, making it difficult to achieve a high power density machine design

Method used

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  • High-capacity water-cooling power unit
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  • High-capacity water-cooling power unit

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Embodiment Construction

[0047] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are part 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 making creative efforts belong to the protection scope of the present invention.

[0048] Such as figure 1 As shown, it is a single-tube IGBT in a 130mmx140mm package. The inside of the single-tube is composed of two groups of IGBTs and diodes connected in parallel to form a single-tube, which meets the needs of larger current levels. Such as figure 2 As shown, the first row of external connection ports constitutes the port C of the single tube, and the second row of external connection ports constitutes the port E of the single tube, and the drive control part 1 main...

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Abstract

The invention provides a high-capacity water-cooling power unit, which comprises a power module and a capacitor assembly, wherein the power module is symmetrically placed and arranged on the basis of single-tube IGBTs; two single-tube IGBTs corresponding to an upper bridge arm and a lower bridge arm of the power module are arranged in a mirror symmetry manner; a drive control part of the single-tube IGBT of the upper bridge arm and the drive control part of the single-tube IGBT of the lower bridge arm are placed outwards; and a single-tube IGBT symmetry layout mode is adopted by the power module, so that large-area lamination of IGBT laminating busbars is facilitated; stray inductance of a loop is reduced; the working reliability of a switching device is improved; an alternating-current busbar is led out through a bridging copper bar via an opening; the influence to a direct current busbar loop is reduced; heat dissipation is facilitated; and the reliability of a system is improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of high-power electric power electronics, and in particular relates to a large-capacity water-cooled power unit. 【Background technique】 [0002] The chain topology was proposed as early as the 1970s and was applied in STATCOM in the late 1990s. The MMC topology was proposed by German engineers in 2001. Because it is suitable for high-voltage and large-capacity applications and caters to the development needs of the power electronics industry, it has become a research hotspot once it was proposed. [0003] Chained multi-level and MMC multi-level are ideas to increase device capacity. On the one hand, cascading power sub-modules can increase the voltage, reduce the size of the device, and improve efficiency. Approximate to sine wave, reduce the harmonic content, reduce or even cancel the output filter device, and realize the combination of high voltage, large capacity and high performance. Using multi-leve...

Claims

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Application Information

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IPC IPC(8): H01L23/473
CPCH01L23/473
Inventor 杨有涛苏浩刘伟增彭国平张普雷郝硕
Owner TBEA SUNOASIS
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