An application of fuzzy logic in brushess servo system is presented. FLC(fuzzy logic control)provides a control strategy regarding to uncertain model, so it has certain robustness. The proposed method improves the rob...An application of fuzzy logic in brushess servo system is presented. FLC(fuzzy logic control)provides a control strategy regarding to uncertain model, so it has certain robustness. The proposed method improves the robust performance of the system, so as to suppress rapidly the state error caused by both parameter variation and forced disturbance. In order to optimize the characteristic of the FLC, PID and on-line adaptive controls are applied. Experiments show that the proposed method is effective.展开更多
A study on the characteristics of the shafting misalignment in a turbine rotor is introduced.The simulation was carried out by using the method of fuzzy fault diagnosis.Some problems which may occur in the fault diagn...A study on the characteristics of the shafting misalignment in a turbine rotor is introduced.The simulation was carried out by using the method of fuzzy fault diagnosis.Some problems which may occur in the fault diagnosis using spectrum are discussed deeply with the concept of'principal direction of spectrum'.展开更多
文摘An application of fuzzy logic in brushess servo system is presented. FLC(fuzzy logic control)provides a control strategy regarding to uncertain model, so it has certain robustness. The proposed method improves the robust performance of the system, so as to suppress rapidly the state error caused by both parameter variation and forced disturbance. In order to optimize the characteristic of the FLC, PID and on-line adaptive controls are applied. Experiments show that the proposed method is effective.
文摘A study on the characteristics of the shafting misalignment in a turbine rotor is introduced.The simulation was carried out by using the method of fuzzy fault diagnosis.Some problems which may occur in the fault diagnosis using spectrum are discussed deeply with the concept of'principal direction of spectrum'.
