Approximation of Transfer Function | Calculation & MATLAB Simulation | Example #2

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In this video, we will discuss how to determine an approximate transfer function of a third-order system. First, we will use a very simple method to carry out the approximate the actual transfer function. Then, we will use a more accurate (algebraic) approximation method. Finally, we will compare the Bode plot and the step response of the actual system and the approximation.

00:00:00 Introducing Example
00:03:39 Simple Approximation Method
00:06:08 Algebraic Approximation Method
00:22:40 Simulations

We follow a logical procedure and provide the solutions step by step such that it clear for you what and why we carry out a specific action.

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#Approximation #TransferFunction #StepResponse
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I applied algebraic approximation for your previous example 1 by using MATLAB and it found parameters correctly. However, If this method is applied a system which has complex conjugate poles it doesnt work.Bode plots of system T.F and approximated T.F are so different can you share your reference book or article?.

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