Abstract:

The synchronous performance of the cutter head driving motors of shield is the key to the normal operation of the cutter head drive system of shield. In this paper, the advantages and disadvantages of masterslave control, parallel synchronous control and coupling control of driving motors of shield are analyzed, and the rationality of parallel synchronous control is demonstrated. A multimotor synchronous control method based on fuzzy PID controller and parallel synchronous control structure is proposed and simulated by means of Matlab/simulink module, and comparison and contrast is made between the mentioned control method and PI control. The study shows that the mentioned control method is superior to PI control in terms of dynamic response, realtime performance and robustness, and it can achieve better synchronous working of the motors at the set speed.

Key words: shield, cutter head drive, multimotor, parallel synchronous control, fuzzy PID control