Research on Fuzzy Adaptive PID Control with Online Parameter Adjustment
PID is the most widely used controller technology in engineering,as it requires multiple rounds of trial and adjustment in actual use to determine parameters,which is a very time-consuming process.Moreover,the parameters ob-tained through trial and adjustment are fixed,although they can ultimately achieve the control requirements of the controlled system,the convergence process is slow.The proposal of fuzzy PID partially solves these problems by selecting different values in the fuzzy rule table according to the deviation,achieving the effect of dynamically adjusting PID parameters and enabling the controlled system to quickly converge.However,there is still space for improvement of fuzzy PID.This paper introduces exponential type function as scaling factor into the input universe and output universe of fuzzy PID,so that the parameters of fuzzy PID can be adjusted online and fuzzy adaptive PID can be realized.
PIDfuzzy PIDadaptive PIDintelligent controlonline parameter adjustmentvariable universe fuzzy control
万方数据
维普
