Research on Temperature Control Based on Adaptive Fuzzy PID Algorithm
In order to meet the requirement that the internal temperature of downhole instruments and equipment of high temperature small wellbore logging system should be maintained 210℃to ensure the stability of test results,a temperature control method based on adaptive fuzzy PID algorithm is proposed.The transfer function and parameters of the temperature control system are determined for verification,and a fuzzy PID controller is built,which can adjust the three parameters of P,I and D adaptively.Finally,the fuzzy PID temperature control curve is given,and the tem-perature control curve is compared with that of the traditional PID algorithm.The simulation results show that when the ambient temperature is 210℃,the temperature adjustment time of fuzzy PID algorithm is shorter,the response speed is faster,the overshoot and steady-state error are 0,and the effect of fuzzy PID control algorithm is signifi-cantly improved compared with the traditional PID control.
temperature control systemfuzzy PIDresponse speedovershootsteady-state error