DEVELOPMENT OF FRACTIONAL-ORDER FUZZY PID CONTROLLER ON STM32 MICROCONTROLLER

Abstract

This article presents the stages of designing intelligent controllers based
on fuzzy logic for technological processes that are technically complex, especially
those that require adjustments to many physical parameters. The main task of
controllers of this class is to determine their optimal values and provide higher
quality indicators than PID controllers in the presence of external in�luences and
parametric uncertainties within the framework of the problem of controlling
technological processes in industry. To solve the current problem, a controller
combining fuzzy logic and fractional-order arithmetic is proposed. STM32
microcontrollers, in particular the STM32FG407VET6 model, were selected for the
practical implementation of this type of controller, and the controller software was
developed in the STM32CubeIDE environment in the C++ programming language.
The article describes in depth the theoretical aspects of the evolutionary creation
of the proposed controller and describes in detail the stages or sequence of creation
of the control algorithm. The results of the practically organized experiments show
that the controller has achieved high ef�iciency in controlling complex technical
control systems with nonlinearity and uncertainty. The results of the conducted
experimental experiments are shown through graphs and simulation diagrams
obtained in the MATLAB and STM32 environments. Also, the theoretical foundations
and methodological guidelines presented can serve as a valuable resource for
engineers of intellectual control systems and advanced specialists in the field of
automation.