Fuzzy-PID Based Induction Motor Control and Its Application to TBM Cutter Head Systems

Induction motor is used to drive cutter head system of tunnel boring machine TBM. Due to the complex working environment, the conventional PID based vector control method cannot meet the varying motor parameters and load disturbances. In this paper, the fuzzy theory and PID control are investigated and applied to the speed control and electromagnetic torque control of induction motor for TBM cutter head systems. Based on the fuzzy-PID control strategy of each induction motor, a multi-motor synchronization control using master-slave control strategy is studied and analyzed. Simulation results show the effectiveness and robustness of the proposed method.