Ingingo ya Chris Kinsfather |Werurwe 20, 2017 |Imashini ya AC |
Isi igenzura moteri irashobora kuba urujijo rwose.Hamwe no guhinduranya amagambo, ibisobanuro nyabyo bya VFD (Variable Frequency Drive) birashobora rimwe na rimwe kwitiranywa nijambo INVERTER.Kugirango twumve neza impamvu kugura VFD bishobora cyangwa bidashobora kuba igisubizo cyiza kuri wewe turashaka gutangirana na make kandi byoroshye kumva ibisobanuro byibyo VFD mubyukuri.
VFD ni amashanyarazi na elegitoronike bishingiye ku bikoresho bya manipulation igikoresho kigamije:
● Gufata ingufu za AC kuruhande rwo gutanga
Guhindura izo mbaraga kuri voltage ya DC
Kubika iyo voltage muri VFD
. rimwe na rimwe ubwoko bwa PM.
Byumvikane neza?Nibura ingingo eshatu zambere zamasasu zakoze… ariko aha niho ibintu bishobora kugorana.Mugihe arukuri ko VFD ikora "Guhindura" umurongo wumurongo wa AC, ibyakozwe na VFD ntabwo ari AC sine yuzuye.Ndashaka kuvuga iki?Aha niho dukunda guhura nurujijo.Ni imyizerere isanzwe ko VFD itanga AC sine yuzuye neza nka ROTARY PHASE CONVERTER (RPC), sibyo.
Icyo VFD itanga mubyukuri nikigereranyo cya sine ikoresheje (PWM) pulse ubugari.Ibisohoka PWM mubyukuri ni manipuline gusa ya DC isohoka.Muri ubu buryo bwiyoberanije, ikintu kimeze nka moteri ya AC INDUCTION ntishobora gutandukanya imiraba ya AC na DC.
Intego yose inyuma yigikoresho ntakindi kirenze guhuza umuvuduko ukenewe mubikorwa bya progaramu.Ibi birashobora gutandukana muburyo bwo gutanga sisitemu, sisitemu yabafana / blower kubitutu byingutu cyangwa ibisabwa, umuvuduko ukenewe kuri spindles kumasosiyete akora imashini nubundi bwoko bwinshi bwo gutunganya bukoreshwa muburyo bwose bwinganda.
Ariko, niyo mpanvu ituma VFD idashobora gukoreshwa nka "RUSANGE POWER SUPPLY" kugirango igenzure imashini, byumwihariko ni MOTOR SPEED CONTROLLER.Gukoresha nabi iyi ntego birashobora kuganisha ku bikoresho cyangwa gutsindwa kwa VFD.
Nibihe bikorwa VFD idashobora gukoreshwa kuri?
Load Imizigo irwanya (Welders, Amashyiga, Ubushyuhe, nibindi)
● Gakondo 1 Moteri yicyiciro hamwe na caps
● Ibikoresho bifite akanama gashinzwe kugenzura no (gukwirakwiza imbere) kugerageza gukoresha VFD nk'amashanyarazi.
Gukoresha VFD kumashini ifite sisitemu ihujwe na moteri (VFD igomba guhuzwa na moteri) Imirongo ifunguye itera umuriro kurugero.
Muri make, umuntu agomba gukoresha RPC kugirango agenzure imashini yose niba ikeneye ingufu zicyiciro cya 3 kandi agakoresha VFD niba umuntu akeneye rwose kugenzura umuvuduko wa moteri kandi akaba ahuza na moteri ya AC induction ishobora gukora imiterere yumuraba nkuko byateganijwe na Umugenzuzi wa VFD.Mugukoresha iyi logique yoroshye, umuntu ntazongera kugira ibikoresho byananiranye.
Chris Kinsfather
Igihe cyo kohereza: Ukwakira-19-2022