Abaguquli bemvamisa, obeye aziwe njengoama-drive emvamisa eguquguqukayo (ama-VFD), ziyizingxenye ezibalulekile ezinhlotsheni ezahlukene zezicelo zezimboni nezentengiselwano. Umsebenzi wayo oyinhloko ukulawula isivinini kanye ne-torque yemoto ngokushintsha imvamisa kanye ne-voltage enikezwa imoto. Lesi sihloko sinikeza ukubuka okujulile kokuthi kanjaniabaguquli bemvamisaumsebenzi, izicelo zabo, kanye nezinzuzo abazinikezayo.
Isimiso esiyisisekelo somshini wokuguqula imvamisa ukuguqula amandla ashintshana ngemvamisa (AC) abe amandla e-AC emvamisa eguquguqukayo. Ngokulungisa imvamisa, ijubane lemoto lingalawulwa ngokunembile, okuthuthukisa ukusebenza kahle futhi kunciphisa ukusetshenziswa kwamandla. Leli zinga lokulawula liwusizo kakhulu ezinhlelweni ezibandakanya amaphampu, amafeni, ama-conveyor, kanye neminye imishini eqhutshwa yimoto.
Enye yezinzuzo eziyinhloko zokusebenzisa i-isiguquli semvamisayikhono layo lokunikeza ukuqalisa nokumisa okuthambile kwenjini. Izindlela zendabuko zokuqala ngqo ku-inthanethi zibangela ukwanda okungazelelwe kwamandla kagesi okucindezela injini kanye nemishini exhunyiwe.isiguquli semvamisa, ijubane lenjini liyakhuphuka noma lehla kancane kancane, kunciphisa ukucindezeleka komshini futhi kwandise impilo yemishini.
Ngaphezu kwalokho,abaguquli bemvamisakuvumela ama-motor ukuthi asebenze ngesivinini esiphezulu ngokwezidingo zomthwalo, okuholela ekongeni amandla okukhulu. Uma injini isebenza ngesivinini esigcwele ngaso sonke isikhathi, isebenzisa amandla angadingekile, okuholela ezindleko zikagesi eziphezulu. Ngokuvumelanisa imvamisa nezidingo zangempela zohlelo lokusebenza, ama-frequency converter aqinisekisa ukusetshenziswa kwamandla kahle futhi anciphisa kakhulu izindleko.
Ngaphezu kokusebenzisa kahle amandla,abaguquli bemvamisazivumela ukulawulwa okunembile kokusebenza kwenjini. Zinikeza imisebenzi efana nokulawula i-torque, ukusetha isikhathi sokusheshisa kanye nokusebenza kwesivinini esiningi. Lezi zici zenza ama-frequency converter afanele izinhlelo zokusebenza ezidinga isivinini esishintshashintshayo senjini noma ezidinga ukusheshisa okushelelayo kanye nokwehla kwejubane. Izimboni ezifana ne-HVAC, ukwelashwa kwamanzi, ukucubungula ukudla kanye nokukhiqiza zizuza kakhulu ekusebenzisaneni okuhlukahlukene kwama-drive.
Enye inzuzo yama-frequency converters yikhono lokuthuthukisa amandla aphelele emoto. Amandla amele ukusebenza kahle kwamandla kagesi aguqulwa abe umsebenzi owusizo. Amandla aphansi angaholela ekulahlekelweni kwamandla okukhulu futhi angaholela ngisho nasezijezisweni ezivela enkampanini yosizo. Ama-frequency converters athuthukisa amandla anamandla ngokwandisa ukusebenza kahle kwemoto nokunciphisa ukusetshenziswa kwamandla okusabela, ekugcineni kunciphisa izindleko zikagesi.
Ngaphezu kwalokho, abaguquli bemvamisa banciphisa amazinga omsindo nokudlidliza, okufaka isandla endaweni yokusebenza ethule futhi ekhululekile. Izindlela zokulawula izimoto zendabuko zikhiqiza umsindo omkhulu ngesikhathi sokusebenza, okubangela ukungakhululeki kwabasebenzi kanye nezinkinga zempilo ezingaba khona. Abaguquli bemvamisa bangalawula isivinini sezimoto kahle, banciphise ukungcoliswa komsindo futhi bakhe indawo yokusebenza emnandi kakhudlwana.
Ngokufigqiwe,abaguquli bemvamisaziyizinto ezibalulekile ezindaweni ezahlukahlukene zezimboni nezentengiselwano ngenxa yekhono lazo lokulawula isivinini kanye ne-torque yama-motor kagesi. Ngokwenza ngcono ukusebenza kwe-motor, ukunciphisa ukusetshenziswa kwamandla kanye nokwandisa ukusebenza kahle okuphelele, ama-frequency converters anikeza izinzuzo eziningi okuhlanganisa ukonga amandla, ukuthuthukiswa kwamandla, ukulawula okunembile kanye nendawo yokusebenza ethule. Ukutshala imali ekhwalithini ephezuluabaguquli bemvamisakungathuthukisa kakhulu ukusebenza kwemishini eqhutshwa yinjini futhi kufake isandla ekusaseni elizinzile.
Isikhathi sokuthunyelwe: Septhemba-01-2023