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Article
Design and Implementation of a Fuzzy Controller for Small Rotation Angles

Author: Mohammed Mahmood Hussein
Journal: Iraqi Journal for Electrical And Electronic Engineering المجلة العراقية للهندسة الكهربائية والالكترونية ISSN: 18145892 Year: 2011 Volume: 7 Issue: 1 Pages: 14-18
Publisher: Basrah University جامعة البصرة

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Abstract

This paper present an adaptation mechanism forfuzzy logic controller FLC in order to perfect the responseperformance against small rotation angles of real D.C. motorwith unknown parameters. A supervisor fuzzy controller SFC isdesigned to continuously adjust, on-line, the universe ofdiscourse UOD of the basic fuzzy controller BFC input variablesbased on position error and change of position error.Performance of the proposed adaptive fuzzy controller iscompared with corresponding conventional FLC in terms ofseveral performance measures such rise time, settling time, peakovershoot, and steady state error. The system design andimplementation are carried out using LabVIEW 2009 with NIPCI-6251 data acquisition DAQ card. The practical resultsdemonstrate using self tuning FLC scheme grant a betterperformance as compared with conventional FLC which isincapable of rotating a motor if the rotation angle is being small


Article
LabVIEW FPGA Implementation Of a PID Controller For D.C. Motor Speed Control

Authors: Fakhrulddin H. Ali --- Mohammed Mahmood Hussein --- Sinan M.B. Ismael
Journal: Iraqi Journal for Electrical And Electronic Engineering المجلة العراقية للهندسة الكهربائية والالكترونية ISSN: 18145892 Year: 2010 Volume: 6 Issue: 2 Pages: 139-144
Publisher: Basrah University جامعة البصرة

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Abstract

This Paper presents a novel hardware designmethodology of digital control systems. For this, instead ofsynthesizing the control system using Very high speedintegration circuit Hardware Description Language (VHDL),LabVIEW FPGA module from National Instrument (NI) is usedto design the whole system that include analog capture circuit totake out the analog signals (set point and process variable) fromthe real world, PID controller module, and PWM signalgenerator module to drive the motor. The physicalimplementation of the digital system is based on Spartan-3EFPGA from Xilinx. Simulation studies of speed control of a D.C.motor are conducted and the effect of a sudden change inreference speed and load are also included

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