A retrofit air-cooled power module

By designing the same module in the converter to install grid-side and machine-side power devices, and combining IGBT heat sinks and optimized air duct circuit connections, the problems of numerous spare parts and poor heat dissipation in the converter are solved, achieving efficient maintenance and stable operation of the equipment.

CN224419138UActive Publication Date: 2026-06-26华润风电(海原)有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
华润风电(海原)有限公司
Filing Date
2025-07-07
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The structural differences between the grid-side power modules and the generator-side power modules in existing converters result in a large number of spare parts, making maintenance difficult. Furthermore, poor heat dissipation leads to short module lifespan, affecting power generation and stability.

Method used

Design a retrofit air-cooled power module that integrates grid-side and machine-side power devices in the same module. It adopts a compact structural layout, utilizes IGBT heat sinks and air ducts for efficient heat dissipation, and optimizes circuit connections through stacked busbars and AC copper busbars to reduce the types of components and maintenance difficulty.

Benefits of technology

This enables compatibility of devices with different current ratings within the same module, reducing the number of spare parts, improving maintenance flexibility and power generation, extending equipment lifespan, and reducing maintenance costs and downtime.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224419138U_ABST
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Abstract

The utility model belongs to the field of wind power generation technology, concretely relates to a kind of air cooling power module for reconstruction, including power unit frame, laminated busbar, IGBT module assembly, IGBT radiator, support capacitor array, IGBT drive board and alternating copper bar;IGBT radiator is fixed in power unit frame, and independent heat dissipation air cavity is formed by being respectively equipped with air inlet, air outlet air duct plate in upper and lower ends, IGBT module assembly is arranged in radiator base surface, and support capacitor array is fixed in heat inlet air cavity immediately adjacent to radiator air inlet entrance.This utility model can be compatible with installation net side, machine side different model IGBT device by optimizing structure layout, realize module generalization, reduce spare parts type and operation and maintenance cost;Support capacitor array is arranged at radiator air inlet, and the efficient heat dissipation of IGBT module and capacitor is realized simultaneously, reduce component temperature, prolong service life, simultaneously optimize laminated busbar and circuit layout, reduce stray inductance and electromagnetic interference, improve module operating stability and power density.
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