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Speed Control of Separately Excited Dc Motor Using Fuzzy Logic Controller

Author(s): Rekha kushwah#1 , Sulochana Wadhwani

Journal: International Journal of Engineering Trends and Technology
ISSN 2231-5381

Volume: 4;
Issue: 6;
Start page: 2518;
Date: 2013;
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Keywords: Fuzzy logic controller | PID control | Simulink | DC motor | Fuzzy inference system | Membership function.

This paper demonstrates the importance of a fuzzy logic controller over conventional method. The speed control of a separately excited DC motor is performed using fuzzy logic controller (FLC) in MATLAB environment. The controller is designed based on the expert knowledge of the system. For the proposed dc motor case, there are 9 fuzzy rules designed for fuzzy logic controller. The output response of the system is obtained by using two types of controllers, namely, PID and fuzzy logic controller. The performance of the designed fuzzy controller and classic PID Speed controller is compared and investigated. Finally, the result shows that the fuzzy logic approach has minimum overshoot, minimum transient and steady state parameters, which shows more effectiveness and efficiency of FLC than conventional PID controller.

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