Advanced Process Engineering Control by Paul Serban Agachi Mircea Vasile Cristea Alexandra Ana Csavdari Botond Szilagyi

Author:Paul Serban Agachi,Mircea Vasile Cristea,Alexandra Ana Csavdari,Botond Szilagyi [Неизв.]
Language: eng
Format: epub
Publisher: De Gruyter
Published: 2017-06-15T21:00:00+00:00

The notation g(t) has been used for the inverse Laplace transform of the function H(s)/s, with g(t) = ζ −1(H(s)/s).

7.2.9Z transfer function of the interconnected systems

A few simple cases of discrete control systems, having sampling elements, will be presented in the following [1, 9]. The results may be obtained using the convolution property. It may be noticed that the ζ transform presents the property ζ (H1(z) · H2(z)) ≠ ζ (H1(z)) · ζ (H2(z)).

1.Series interconnected discrete systems, Fig. 7.16:

Fig. 7.16: Series interconnected discrete systems. 2.Series interconnected continuous systems without intermediate sampling element, Fig. 7.17 [1]:

Fig. 7.17: Series interconnected continuous systems without intermediate sampling element. 3.Series interconnected continuous systems with intermediate sampling element, Fig. 7.18 [1, 9]:

Fig. 7.18: Series interconnected continuous systems with intermediate sampling element. 4.Continuous system before the sampling element, Fig. 7.19 [1, 9]:

Fig. 7.19: Series interconnected systems with continuous system placed before the sampling element. 5.Discrete feedback control system, Fig. 7.20 [1, 9]:

Fig. 7.20: Discrete feedback control system.

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