Abstract
This paper introduces the fuel supply principle of a high-temperature gas trial system (HTGTS), and gives the mathematical model of the fuel supply system. According to the problems such as time delay, time-variant parameters, interference and so on exist in the fuel supply system, the Fuzzy PID predictive (LevFuzzyPID) control algorithms are designed to realize the accurate control of the fuel flow-rate. On this basis, the simulations and experiments are carried out by using the control algorithms designed in this paper. The simulation results show that the LevFuzzyPID algorithm is superior to the traditional PID and fuzzy PID algorithm in the ability of overcoming the system’s time delay, time-variant parameters and interference, which has good control performance. The experimental results show that the control effect of the LevFuzzyPID algorithm is much better than the control effect of PID algorithm and FuzzyPID algorithm. Namely overshoot of the system by using PID algorithm and FuzzyPID algorithm are 20% and 12% respectively, but there is no overshoot in the system by using LevFuzzyPID algorithm.
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