Ts Fuzzy Systems Based On Lmi Robust Non-fragile Control Study

During actual carrying out process of controller, as the insufficient precision of instruments or error margin, there would be some parameter change of the controller. If design controller in traditional way, the designed controller would show high frangibility and affect itself. So the studying in the no-fragile control problem has important meanings. As most fuzzy control problems are subject to no-linear systems, the studying of no-fragile control to them are more complex and difficult. There are few no-fragile control study fruit of fuzzy system as so far.T-S fuzzy system is an important embranchment of fuzzy system. It is paid broad attention to as it can be approach to some no-linear system unlimitedly. The paper studies the no-fragile control problem subject to T-S fuzzy system. The first two chapters mainly introduce fuzzy development and its basic knowledge; the third chapter introduces some control theory foundation used in the paper; the forth chapter gives the full condition that state feedback no-fragile controller exist in linear matrix inequality for continuum fixed fuzzy system, parameter uncertain fuzzy system and yawp disturbing fuzzy system based on Lyapunov function way, while considering the controller gain has additive variety. The fifth chapter applies the paper conclusion to a topic no-linear inverted pendulum system for validation.As the fuzzy controller designing arithmetic proposed in the paper considers the frangibility of controller, the controller designed in this way has better robustness than usual fuzzy controller.