Study on fuzzy sliding mode variable structure control for aeroengine

A method of fuzzy sliding mode variable structure control was put forward for aeroengines with time-varying uncertainty and strong nonlinearity.The method integrated fuzzy logic system into sliding mode variable structure control.By designing a sliding mode variable structure control system by use of linear sliding mode plane and exponential nearness rate,and adjusting switch gain with fuzzy logic system,the fuzzy sliding mode variable structure model controller overcame the sensitivity of traditional variable structure control on uncertainty in the coming process.Furthermore,the designed controller eliminated the chattering phenomena.Through digital simulation,the results show that the designed controller can overcome parameter perturbation and exterior disturbance,that plant has strong robustness in the whole control process.