Izmenični motorji kot servopogoni v mehatroniki : doktorska disertacija
Rodič, Miran
V delu je opisan nov pristop vodenja asinhronskega motorja po navoru in rotorskem fluksu brez uporabe senzorja hitrosti. Glavni prospevek dela je uporaba nove strukture observerja rotorskega fluksa, ...namenjenega delovanju brez senzorja hitrosti. Predlagani protop se ukvarja s problemom servopogona z asinhronskim motorjem brez senzorja hitrosti, ki naj deluje pri nizkih in visokih hitrostih vrtenj z možnostjo hitrih sprememb hitrsoti. Zamisel je realizirana z uporabo nelinearnega, od statorske frekvence odvisnega ojačanja, ki rotorskemu observerju omogoča delovanje pri visokih in nizkih hitrostih. Pri nizkih hitrostih preide observer v zaprtoznačni nelinearni sistem, ki za vhode uporablja statorski tok in napetost ter želeno vrednost rotorskega fluksa, pri visokih hitrostih pa v dobro znan napetostni model asinhronskega motorja s povratoznačno vezavo, ki izboljša lastnost observerja. Predstavljen je tudi algoritem za adaptacijo vrednsoti statorske upornosti. Na ta način je observer nekoliko robustenjši na spreminjanje parametrov. Delovanje je proučeno in potrjeno s simulacijami in eksperimenti.
Type of material - dissertation
; adult, serious
Publication and manufacture - Maribor : [M. Rodič], 2000
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