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International Journal of

Recent Trends in Engineering

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International Journal of Recent Trends in Engineering (IJRTE)

ISSN 1797-9617

Volume 1, Number 3, May 2009

Issue on Electrical & Electronics

Page(s): 353-358

Real Time Implementation of Time Delay Controller for DC Motor Speed Control

G.S. Hyalij, A.U. Deshpande, P. D. Shendge, B.M. Patre

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Abstract

This paper deals with real time implementation of different controllers i.e. feedback, PID, Time Delay Control (TDC) for DC motor speed control. Control algorithms like state feedback, Proportional Integral Derivative (PID) are the basic algorithms used for controlling linear time invariant (LTI) system and fails for nonlinear and uncertain system. TDC being a robust controller can overcome limitations of simple feedback, PD and PID algorithm. This paper shows how TDC works as a robust controller when DC motor inputs have an external disturbance. Here simple feedback, PID and TDC controller are implemented and results are compared. Time delay control is the approach used for the estimation of uncertainties and disturbances which works on assumption that the error at present instant is equal to error at previous instant. These algorithms are implemented on SPARTAN-3E Field Programmable Gate Array (FPGA) instead of microprocessor or DSP where VHDL is used.

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