Simulation and control of AC/DC converter & induction machine speed using adaptive fuzzy controller

• Published in: 2007 International Conference on Electrical Machines and Systems (ICEMS) pp. 539 - 542
• Main Authors: Ghamri, A., Benchouia, M.T., Benbouzid, M.E.H., Golea, A., Zouzou, S.E.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.10.2007
• Subjects: Adaptive control; Automatic frequency control; DC-DC power converters; Error correction; Fuzzy control; Fuzzy logic; Induction machines; Programmable control; Torque control; Voltage control
• DOI: 10.1109/ICEMS12746.2007.4412021

This paper investigates the application of fuzzy adaptive controller to the control of induction machine speed (AFCS) and the DC-link voltage of the AC/DC converter (AFCV). The proposed controller consists of two parts: the first one, is the classical fuzzy logic controller constituted by fuzzy If-Then rules, whose inputs are the speed or voltage error, and the change of speed or voltage error, and its output is the reference torque or current . The second part is the adaptation mechanism, which adjusts the output gain of the Fuzzy controller. The gain must be adapted at every situation of the system as a function of the error and its variation. We study the robustness of the controller using simulation results for different operating modes and parameters variation.