Se selecciono un ejercicio del libro de Ingeniería de control moderna de Ogata 4 Ed. entonces el ejercicio dice que tenemos que obtener la transferencia :
Figura 3-92 |
$p_{1}=\frac{b_{2}}{s^{2}}= \frac{1}{s}\frac{1}{s}b_{2}$
$p_{2}=\frac{b_{1}}{s}=\frac{1}{s}b_{1}$
$L_{1}=-\frac{a_{1}}{s}$
$L_{2}=-\frac{a_{2}}{s_{2}}$
$\Delta =1-(L_{1}+L_{2})$
$\Delta =1-(\frac{a_{1}}{s}+\frac{a_{2}}{s_{2}})$
$\Delta =\frac{s^{2}+a_{1}s+a^{2}}{s^{2}}$
$\Delta a_{1}=1 , \Delta a_{2}=1$
http://elisa.dyndns-web.com/~elisa/teaching/sys/control/flujo.pdf |
$\frac{y(s)}{x(s)}=\frac{1}{\Delta }(P_{1}\Delta _{1}+P_{2}\Delta_{2})$
$ \frac{s^{2}+a_{1}s+a^{2}}{s^{2}}$
$\frac{s^{2}+a_{1}s+a^{2}}{s^{2}}\left ( \frac{b_{2} }{s^{2}}+ \frac{b_{1}}{s}\right)$
Fine by me. 15 pts.
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