PID Regulator and Fuzzy-Digital Filter Combination in the Thermoelement Control Task
Maksim Vladimirovich Bobyr, N. A. Milostnaya, C. A. Nolivos · Mekhatronika Avtomatizatsiya Upravlenie · 2022
The thermoelement control system basis on the fuzzy logic has been developed in this article. This system improves the stability characteristics of devices using a PID controller in their structure. This effect is achieved by reducing the output signal, the value of which is calculated using a fuzzy digital filter. The main aspect of the fuzzy digital filter is the use of the area ratio method during defuzzifing. The limitation of this method is the use of triangular membership functions. The experimental results presented in the article demonstrate the effectiveness of the proposed solution. The study has shown that the time of transient processes with the combined control of the thermoelement is reduced by 16—22 %.