一种串联晶闸管驱动系统

By combining the design of the drive control unit, the measurement and drive expansion unit, and the high-voltage self-powered drive unit, the problems of poor scalability, slow pulse rise rate, and large electromagnetic interference in the thyristor drive system are solved, achieving efficient electrical isolation and reliable drive control.

CN116742932BActive Publication Date: 2026-07-17DONGFANG ELECTRIC AUTOMATIC CONTROL ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGFANG ELECTRIC AUTOMATIC CONTROL ENG CO LTD
Filing Date
2023-07-03
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing thyristor drive systems suffer from poor scalability, slow trigger pulse rise rate, high electromagnetic interference, complex circuit structure, and incomplete electrical isolation in high-power applications, leading to complex control loop design and a high risk of accidents.

Method used

The design employs a combination of drive control unit, measurement and drive expansion unit and high voltage self-powered drive unit. Data transmission is achieved through fiber optic communication. Combined with high voltage self-powered circuit and thyristor protection circuit, synchronous triggering and fault protection are realized.

Benefits of technology

It improves the pulse rise rate, eliminates electromagnetic interference, enhances the scalability and safety of the circuit, meets the high and low voltage isolation requirements, and provides a reliable drive control method.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种串联晶闸管驱动系统,包括驱动控制单元、测量及驱动扩展单元和多个高压自取能驱动单元,驱动控制单元与测量及驱动扩展单元连接,测量及驱动扩展单元分别与多个高压自取能驱动单元连接,多个高压自取能驱动单元分别与支臂串联晶闸管全控桥中的被控晶闸管连接。本发明适用于多种结构的高压大功率晶闸管全控桥的驱动和控制,并可提高脉冲上升速率,消除传输回路电磁干扰,以及实现在过电压等极端工况下对被控晶闸管的保护,解决了现有技术中存在的控制回路扩展性差、触发脉冲上升速率慢、电磁干扰大、电路结构复杂以及电气隔离不彻底等技术问题。
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