2013•Machine Tool & HydraulicsRequires access

Simulation Analysis of Electro-hydraulic Proportional Control System of Shearer Drum Lifting Based on AMESim

Zhang Jiu-qin

Abstract

The traditional shearer drum lifting system can not be used to control the path of shearer drum accurately.Applying electro-hydraulic proportional technology,a shearer drum hydraulic lifting system was designed.AMESim was used to model and simulate the electro-hydraulic proportional open-loop and closed-loop PID control systems of shearer drum lifting system and the results were analyzed.The simulation results show that the designed electro-hydraulic proportional control system can be used to control the path accurately.The closed-loop control system's control effect is better than that of the open-loop control system.

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Key concepts: Drum, PID controller, Control theory (sociology), Control system, Hydraulic machinery, Proportional control, Engineering, Open-loop controller