悬臂吊车计算机速度调节系统设计研究-毕业论文总结

The graduation thesis "Design of Computer Speed Control and Traction System for Cantilever Crane (without counterweight)" conducted at Shenyang Aerospace University Northern Technical College focuses on the research of computer speed control for the crane motor in order to achieve uniform lifting and lowering when there is an empty hook or a load. The thesis provides detailed introduction to the starting, speed regulation, and braking of the crane motor, and proposes various speed regulation and braking methods for discussion. Specifically, the thesis adopts the methods of cascade speed regulation and reverse connection braking to control the motor. The ultimate goal is to achieve the requirements of uniform lifting and lowering of the crane with an empty hook or loaded, over-line stop, overload stop, etc. Keywords: cascade speed regulation; reverse connection braking; motor speed control.