交流直流转换电路和电力设备

By integrating the functions of the bridge arm reactor and the transformer, and using a three-phase transformer reactor module and a three-phase DC converter, the problem of large equipment footprint in AC-DC conversion circuits is solved, and the miniaturization and compact design of the equipment is realized.

CN116455245BActive Publication Date: 2026-07-17ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD
Filing Date
2023-05-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing AC-DC conversion circuits, the independent installation of bridge arm reactors and transformers results in a large equipment footprint and problems such as core saturation and increased valve-side winding capacity.

Method used

The function of the bridge arm reactor is integrated with that of the transformer. A three-phase transformer reactor module and a three-phase DC converter are used. The transformer core and the reactor core are isolated by insulation components. The upper and lower bridge arm coils are used to realize the function of the bridge arm reactor, avoiding the influence of DC current on the transformer core and reducing the capacity of the valve side winding.

Benefits of technology

This reduces the equipment's footprint, avoids core saturation issues, lowers the equipment's space requirements, and enables the equipment to be miniaturized and compacted.

✦ Generated by Eureka AI based on patent content.

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Abstract

本申请提供了一种交流直流转换电路和电力设备,交流直流转换电路包括三个变压电抗模组和三相直流换流器,变压电抗模组分别为第一变压电抗模组、第二变压电抗模组和第三变压电抗模组,第一变压电抗模组包括绝缘组件、变压器铁心、电抗器铁心、网侧线圈、阀侧公共线圈、上桥臂线圈和下桥臂线圈。将桥臂电抗器的功能与变压器的功能融合在一起,省去独立的空心电抗器减小换流站的占地面积,采用上桥臂线圈和下桥臂线圈实现桥臂电抗器的功能,同时与三绕组变压器方案相比能够减小阀侧绕组的容量,进而解决了现有方案的交流直流转换电路中电抗器和变压器独立设置导致设备占地面积较大的问题。
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