Simulation of shearer drum cutting with memory program controlling by fuzzy control

According to shearer working environment and the feature of drum automatic lifting system,based on the principle which analyzed shearer drum cutting with memory program controlling,aimed at on-off controls about magnet valve controlling hydraulic cylinder,designed the fuzzy-controller which used solenoid directional valve and adopted fuzzy control theory,provided the frame and the rules of fuzzy controller,achieved to adjust the height of shearer drum.It took a shearer type of MG200/500 for example and perform the Simulink simulation.The result shows that the fuzzy-controller can control the on-off time to solenoid directional valve effectively,output is smooth and steady and the performance is good.