By Professor I. D. Landau, Professor R. Lozano, Professor M. M’Saad (auth.)
Adaptive Control offers options for automated, real-time changes in controller parameters for you to reaching and/or retaining a fascinating point of method functionality within the presence of unknown or variable strategy parameters.
Many features of the sector are handled in coherent and orderly model, beginning with the issues posed by means of procedure uncertainties and relocating directly to the presentation of recommendations and their functional value. in the common context of contemporary advancements, the e-book appears to be like at:
• synthesis and research of parameter edition algorithms;
• recursive plant-model id in open and closed loop;
• strong electronic keep an eye on for adaptive control;
• direct and oblique adaptive keep an eye on; and
• functional elements and applications.
To mirror the significance of electronic pcs for the applying of adaptive regulate concepts, discrete-time facets are emphasised. to steer the reader, the e-book includes quite a few purposes of adaptive keep watch over techniques.
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Extra resources for Adaptive Control
However v (t ) may act in different part of the system. Eq . 1) corres ponds to the blo ck diagr am shown in Fig. a (known also as the equati on error mod el) . If in addit ion v(t ) is modelled by Eq . 6) In gener al : n c :s; nA Eq . 6) gives an equivalent form for Eq . 5) whi ch corresponds to the disturban ce added to the ou tput , but filtered by l /A(q -l) . However , th e dis turbanc e may be rep resented as dir ectly added to the output as shown in Fig. b . 2) ca n be asso ciated to v (t ) in Eq .
Introduction to Adaptive Co ntrol tran sducer s and V is the st rip speed . When discretizing this model , the major difficulty comes from the variable time-delay. In order to obtain a cont ro ller with a fixed number of parameter s, the delay of the discrete-time model should rem ain con st ant . Ther efor e, the sampling period T s is ti ed to the st rip spee d using the formula: £+0 Ts - -v d - '. r»: (d = integer) wh ere 0 is an addit ional small time-d elay corresponding to the equivalent t imedelay of the industrial network and of the progr ammabl e cont roller used for pressure regul ation and d is the discr et e-time delay (inte ger) .
Some Connections Comp ar ing t he dir ect adaptive con trol sche me shown in Fi g. 3 with the indirect adaptive cont rol sche me shown in Fi g. 6, on e ob serves an important differen ce. In t he sche me of F ig. 3, t he parameters of t he controller a re directly estimate d (adapted) by t he adaptation mech anism . In the sche me of Fi g. 6, the adaptati on mec hanism 1 t unes the parameters of a n adj ustable predi ctor a n d t hese pa ramet ers are t he n used to com pute t he controller parameters.
Adaptive Control by Professor I. D. Landau, Professor R. Lozano, Professor M. M’Saad (auth.)