MATLAB CONTROL SYSTEM TOOLBOX 9 Spécifications télécharger pdf (Page 561)

100

101

16-221

Transfer function from input "current" to output...

p + 1

torque: -------------

p^2 + 2 p + 2

ang. velocity: -

Note how setting the 'variable' property to 'p' causes the result to be

displayed as a transfer function of the variable .

Example 2

To use a rational expression to create a SISO TF model, type

s = tf('s');

H = s/(s^2 + 2*s +10);

This produces the same transfer function as

h = tf([1 0],[1 2 10]);

Example 3

Specify the discrete MIMO transfer function

with common denominator and sample time of 0.2 seconds.

nums = {1 [1 0];[-1 2] 3}

Ts = 0.2

H = tf(nums,[1 0.3],Ts) % Note: row vector for common den. d(z)

Example 4

Computethetransferfunction ofthe state-spacemodel with thefollowing data.

()

z 0.3+

-----------------

z 0.3+

-----------------

z– 2+

z 0.3+

-----------------

z 0.3+

-----------------

()

z 0.3+=

1 2 ... 556 557 558 559 560 561 562 563 564 565 566 ... 590 591

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MATLAB CONTROL SYSTEM TOOLBOX 9 Spécifications Page 561

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