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DC mašine. matematički modeli upravljanje i regulacija. Primer:. Na slici je šematski prikazan jednosmerni motor sa nezavisnom pobudom, upravljan strujom rotora. Odrediti funkciju prenosa koja opisuje zavisnost položaja rotora ( q ) od napona rotora (u a ).

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Dc ma ine

DC mašine

matematički modeli

upravljanje i regulacija


Primer
Primer:

Na slici je šematski prikazan jednosmerni motor sa nezavisnom pobudom, upravljan strujom rotora.

Odrediti funkciju prenosa koja opisuje zavisnost položaja rotora (q) od napona rotora (ua).

Pretpostaviti da se radi o opsegu brzina do nominalne (wwn) i da je fluks u mašini Yf=const. (pobudnia struja if=If=const).


Ua(s) = RaIa(s)+LasIa(s)+Yfw(s)

Tm(s) = Jsw(s) + bw(s)

Tm(s) = YfIa(s)

w(s) = sq(s)

; TL=0


La0

w(s) = sq(s)






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