Multiple variable fuzzy sliding mode variable structure model tracking control for aeroengine

A method of fuzzy sliding mode variable structure model tracking control was put forward for aeroengine with uncertainty and strong nonlinearity.The method integrated fuzzy logic system into sliding mode variable structure control.By designing sliding mode variable structure control system with proportion-integral switch hyperplane and adjusting switch gain with fuzzy logic system,the fuzzy sliding mode variable structure model tracking controller for some turbofan engine was obtained.Through digital simulation,the results show that designed controller can not only bring the output of plant to track the output of reference model,and eliminate chattering phenomena,but also overcome system uncertainty,and ensure that plant has strong robustness in the whole control process.