steady-state error การใช้

• The method can not only reduce the system steady - state error , but also soften control
• After analyzing the relationship between the steady - state error of the system and the slope of the sliding surface , its mathematical equation is deduced
• The stability , response time , overshoots and steady - state errors of the systems are analyzed ; and the result indicates the feasibility of the model
• In the application of fuzzy logic to the engineering , the dissertation presents a new approach to remove the steady - state error of fuzzy logic controller ( plc ) without using any integrator
• The method can eliminate the conventional fuzzy control system ' s steady - state errors and flutters . considering wind disturbance , the stabilized loop of pitch angle was designed and simulated with this method
• The method can eliminate the conventional fuzzy control system ' s steady - state errors and flutters . and , the method of forward feed control is used to reduce the tracing errors during glide slope phase
• Due to the convergent speed and steady - state error are affected by the fixed stepsize and can not be improved simultaneously in classical lms algorithm , this paper presents an improved algorithm of lms
• The paper analyzed the relationship of the scale factors and several main performance indexes of the system ' s respond curve like over - regulation , divergence , surge - degree , steady - state error and transient time , and denoted these indexes by some fuzzy membership functions
• The steady - state errors of current closed loop system with pi current regulator in stationary and synchronous frames are compared using complex vectors . also , the corrector of rotor displacement control is studied by the root locus method
• The main research work of the thesis is summarized as follows : 1 . the improved fuzzy logic control method the phenomenon of steady - state errors and flutter exists in the traditional fuzzy controller . an improved fuzzy controller without quantilizing is presented
• The hall zero - magnetic flux principle ( ie . a closed - loop principle ) is adopted to deduce the formula of the steady - state error for the hall zero - magnetic flux system , and the conclusion that the larger the amplifier amplification in the hall zero - magnetic flux system , the smaller the steady - state error is reached
• Computer simulation results make clear that fuzzy controller using interpolation arithmetic has better control performance than the traditional one because it can eliminate quantization dead - zone and adjust steady - state errors completely . compared with pid controller , it suits for the systems with changeful parameters and structures much better than pid controller
• Abstract : a methodology to reduce the input fuzzy sets with the hyperplane of generalized state error is discussed in this paper based on sliding mode control ( smc ) theory , a method of varying nonlinear fuzzy sets range using some parameter is proposed , and some internal properties of fuzzy controller is analyzed to show that the fuzzy controller outperform the pid controller , such as the stability and steady - state error
• Finally , the controller working based on the combination of rbf neural networks and traditional pid control was applied to in aclinic kinetic machinery and lifting machinery of tower crane . the simulation of this controller was made using matlab , and the simulation results showed that the control system has some merits , such as quick response , little overshoot , well anti - jamming capacity , and little steady - state error , etc . both the dynamic property and static characteristic of this controller are better than traditional pid controller , and meet the tower crane
• 4 . in order to solve the chattering brought about by structure variant of controller , a design method of dynamic sliding mode in ac servo system is proposed . the control signal produces an effective chattering reduction after integrations , and the addition of the tracking error integration can eliminate the steady - state error