Imiyoboro ihindagurika ya VFDs (VFDs): Kugenzura Moteri Yuzuye no Kurinda
Imiyoboro ihindagurika (VFDs): Igenzura ryuzuye rya moteri no kurinda
Intangiriro
Impinduka za Frequency Drives (VFDs) nibikoresho bikomeye byashizweho kugirango bizamure imikorere nubushobozi bwa moteri yabigenewe mbere yo gukora umuvuduko umwe. Kurenga kubikorwa byabo byibanze, VFDs igira uruhare runini mukurinda moteri kwirinda amakosa menshi ashobora kuba, harimo kurenza urugero, kurenza urugero, imbaraga zidasanzwe, munsi yumuriro, guhagarara, guhagarika icyiciro, amakosa yubutaka, hamwe nikabutura yicyiciro. Muri sisitemu y'amashanyarazi ibyiciro bitatu, guhuza VFDs birashobora gutuma umuntu yunguka byinshi, akabishyira mubisubizo bihendutse cyane mubikorwa bitandukanye.
Ibyiza bya VFDs
VFDs itanga inyungu nyinshi, hamwe no kuzigama ingufu nimwe igaragara, bitewe nibisabwa byihariye. Bikunze gukoreshwa mubafana ba centrifugal, pompe, compressor, nibindi bikoresho byihuta byihuta. Mugutezimbere moteri ya AC, VFDs itanga umusanzu muremure wo gukora no kugabanya ibisabwa byo kubungabunga. Byongeye kandi, kugenzura neza umuvuduko bigabanya amakosa yimikorere nimyanda. Urebye ubushobozi bwabo bwo kuzigama ingufu, inyungu ku ishoramari muri VFDs irashobora kugerwaho mugihe gito ugereranije, kuva kumezi make kugeza kumyaka mike.
Ibindi Byifuzo Kubijyanye na VFD
Gushiraho VFD bikubiyemo ibirenze kubihuza na moteri. Ukurikije ibisabwa byihariye, ibice byongeweho nka electromagnetic interineti yungurura filtri, radiyo yumurongo wa radiyo, uruzitiro runini, insinga nshya, cyangwa umurongo / umutwaro wa reaktori birashobora gukenerwa. Guhindura VFD hamwe nibintu bimeze nkamatara yindege, bypass, ibikoresho byoroheje bigabanya ubukana, voltage transgeur suppressors (TVSS), cyangwa dv / dt muyunguruzi nabyo birasabwa kwemeza imikorere myiza. Kwirengagiza ibyo byongeweho birashobora kuganisha ku mikorere idahwitse cyangwa kwangirika kwa moteri.
Ibintu ugomba gusuzuma muguhitamo VFD
Mugihe uhitamo VFD kubice bitatu byamashanyarazi, ibintu byinshi bigomba kwitabwaho:
- Amps Yuzuye Yuzuye (FLA): Nibyingenzi muguhitamo VFD nini ikwiye.
- Umuvuduko: Amahitamo arimo 208 VAC, 230/240 VAC, cyangwa 460/480 VAC.
- Umuvuduko / Guhindagurika
- Twara umukandara
- RPM
- Ubwoko bw'imizigo
- Urwego rwihuta
- Torque isabwa
- Kurenza Ubushobozi Bwubu
- Uburyo bwo kugenzura
- Urutonde
Ibikorwa bya VFD
Ibyuma bya elegitoroniki muri VFD bihindura icyiciro kimwe kuri DC ukoresheje diode, hanyuma ukoreshe ubushobozi kugirango ubyare umusaruro wifuzwa. Iyi pulsed power yigana amashanyarazi ya AC. VFDs ishyigikira ibikorwa bine byibanze byo gutwara:
- Gutwara ibinyabiziga imbere (umuvuduko mwiza na torque)
- Guhindura ibinyabiziga (umuvuduko mubi na torque)
- Gufata feri imbere (umuvuduko mwiza na torque mbi)
- Guhindura feri (umuvuduko mubi na torque nziza)
Gutangira Imodoka & Hagarara
VFDs nyinshi zagenewe gutangira-gutangiza, gutangirana na frequency nkeya na voltage kugirango wirinde imigezi ya inrush nibibazo byubukanishi bijyana no gutangira kumurongo. Gushiraho insinga bisa nibice bimwe ariko hamwe nuyobora. Gushyira L1, L2, na L3 muri rwiyemezamirimo utangiza ikinyabiziga kandi ugahindura ibisohoka kumuvuduko wifuzwa, bigatuma moteri itanga umuriro mwinshi. Iyo uhagaze, inshuro na voltage bigabanuka buhoro buhoro kugeza moteri izimye.