Abstract
Automated mechanical transmission (AMT) is used as a soft starter in this paper. To improve the soft starting quality, a novel data-driven method is studied. By analyzing and comparing five common soft-starting acceleration curves, a segmented acceleration curve is put forward to be used as the soft-starting acceleration curve for the AMT. Based on the prototype model free adaptive control (MFAC) method, a modified MFAC method with jerk compensation is given to control the AMT output shaft’s angular acceleration and reduce driveline shock. Compared with the methods of prototype MFAC and traditional proportion integration differentiation (PID), the modified MFAC method with jerk compensation can better control the AMT output shaft’s angular acceleration and has excellent characteristics in terms of small tracking error and smaller shock. The research results provide a novel data-driven method for AMT as a soft starter.
Highlights
In recent decades, the belt conveyors have come to play an important role for the dry bulk material transport
We propose its use as a new soft starter for medium-scale belt conveyors with 400 kW in this paper, as its maximum input torque can reach 3400 N·m, as provided by ZF Friedrichshafen AG
The control characteristics using the modified model free adaptive control (MFAC) method with jerk compensation can be discussed by comparing the prototype MFAC method and the proportion integration differentiation (PID) control method
Summary
The belt conveyors have come to play an important role for the dry bulk material transport. The vibration of the conveyor belt may cause serious accidents, such as belt breaking, belt slipping, and belt wear for long-distance and high-power belt conveyors during their starting process [5,6,7,8]. These asymmetric malicious problems will occur if the technical difficulties during the starting process cannot be resolved, while symmetric phenomena will appear if the problems with technologies during the starting process can be dealt well. Softly starting the belt conveyors is very important. A reasonable acceleration starting curve can decrease belt vibration and belt accidents
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