Design of Double Cranes Synchronous Control System Based on Control Network

ABSTRACT

To solve the problems in the synchronous operation control of double cranes for lifting super long rail, fuzzy parameter self-tuning PID was introduced to the synchronous operation control strategy of the non rigid connection mechanism. For practical application in concrete engineering project, a fuzzy PID double crane synchronous operation control system was designed, which was implemented by PLC in control network. The network topology structure and system software and hardware configuration were introduced in detail. Structure of the fuzzy PID controller and its specific implementation process in Siemens CPU315-2DP PLC were explained also. Meanwhile, software aided design and simulation experiments for the fuzzy PID controller by making use of the simulation software MATLAB were explained. The results of simulation and practical operation effect show that, some control quality indexes of the fuzzy PID controller like overshoot, dynamic response speed and steady-state accuracy are greatly improved compared to the conventional PID. Because of the design based on control network, the system operation efficiency, real-time performance and economic benefit are also improved considerably, so it has the high value of engineering application.

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