I-VFD yenziwe ngani

I-variable frequency drive (VFD) iyisisetshenziswa se-elekthronikhi esilawula isivinini kanye ne-torque yemoto kagesi ngokushintsha imvamisa kanye ne-voltage yamandla anikezwe yona. Ama-VFD, aziwa nangokuthi amadrayivu e-AC noma amadrayivu ashintshwayo, asetshenziselwa ukuthuthukisa ukusebenza kwemoto, ukonga amandla, nokuthuthukisa ukulawulwa kwenqubo ezinhlelweni ezihlukene.

Kunezizathu eziningi zokulungisa isivinini semoto.
Ngokwesibonelo:

Yonga amandla futhi uthuthukise ukusebenza kahle kwesistimu
Guqula amandla ezinhlelweni ezixubile
Hlela isivinini sokushayela ukuze ucubungule izidingo
Guqula ithoshi yedrayivu noma amandla okucubungula izidingo
Thuthukisa indawo yokusebenza
Yehlisa amazinga omsindo, njengakubalandeli namaphampu
Yehlisa ukucindezelwa kwemishini emishinini futhi wandise impilo yesevisi
Yehlisa ukusetshenziswa kukagesi okuphezulu, gwema ukukhuphuka kwentengo kagesi ephezulu, futhi unciphise usayizi wenjini edingekayo

 

Yiziphi izinzuzo eziyinhloko zokusebenzisa i-variable frequency drive?

Idrayivu yefrikhwensi eguquguqukayo ilungisa ukunikezwa kwamandla ukuze kufane nesidingo samandla sezinto ezisetshenziswayo, okuyindlela ukongiwa kwamandla noma ukusetshenziswa okuthuthukisiwe kwamandla okufinyelelwayo.
Ekusebenzeni okujwayelekile kwe-direct-on-line (i-DOL), lapho injini ihlale isebenza ngesivinini esigcwele kungakhathaliseki isidingo sangempela, idrayivu yefrikhwensi eguquguqukayo inganciphisa kakhulu ukusetshenziswa kwamandla. Ngedrayivu yefrikhwensi eguquguqukayo, ukonga ugesi noma uphethiloli okungama-40% kuvamile. Umphumela we-snowball usho ukuthi ukusebenzisa idrayivu yefrikhwensi eguquguqukayo nakho kungasiza isistimu yehlise ukukhishwa kwe-NOx ne-CO2.

Ama-VFD anamuhla ahlanganisa amanethiwekhi nokuxilongwa ukuze alawule kangcono futhi akhiqize kakhudlwana. Ngakho ukonga amandla, isilawuli semoto esihlakaniphile, kanye namagagasi aphezulu ancishisiwe—lezi izinzuzo zokukhetha i-VFD njengesilawuli sesistimu yakho yokushayela imoto.

Ama-VFD asetshenziswa kakhulu ukulawula abalandeli, amaphampu, nama-compressor, okubalelwa ku-75% wezinhlelo ze-VFD emhlabeni jikelele.

Iziqalisi ezithambile nezixhumi zomugqa ogcwele ziyizilawuli ezimbili ezilula. Isiqalisi esithambile iyisisetshenziswa esesimeni esiqinile esihlinzeka ngokusheshisa okuthambile, okulawulwayo kwenjini ukusuka ekuqaleni ukuya esivinini esigcwele.