A control system for a hydroelectric plant bridge crane
The control system combining PLC and frequency converter has solved the problems of high energy consumption, large mechanical impact and low speed regulation accuracy of traditional bridge cranes, and has achieved high reliability and high precision control, thus promoting the development of bridge cranes in hydropower stations towards high efficiency, safety and green development.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
- Filing Date
- 2026-05-29
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional bridge crane control systems suffer from high energy consumption, large mechanical impact, low speed regulation accuracy, and complex maintenance. In particular, the equipment is easily damaged in high-temperature and dusty environments, affecting safety and positioning accuracy.
The control system, which combines PLC and frequency converter, achieves high reliability and high precision control through contactless control, stepless speed regulation and intelligent integration, combined with redundant design, energy feedback and vector control technology.
It improves system reliability and control precision, reduces energy consumption, reduces mechanical shock, extends equipment life, and reduces maintenance workload through intelligent monitoring.
Smart Images

Figure CN122403294A_ABST