Nrog rau kev txhim kho tas mus li ntawm kev tsim khoom tsim nyog rau crane ceev kev tswj kev ua tau zoo, cov kev cai ib txwm siv crane ceev tswj txoj kev xws li winding rotor asynchronous lub cev muaj zog rotor series tsis kam ceev kev tswj, thyristor stator voltage regulation ceev thiab cascade ceev txoj cai muaj cov nram qab no tsis zoo: winding rotor asynchronous lub cev muaj zog muaj cov nplhaib thiab txhuam hniav, uas yuav tsum tau saib xyuas tsis tu ncua. Kev ua tsis tiav los ntawm cov nplhaib sib dhos thiab cov txhuam hniav yog ntau dua. Tsis tas li ntawd, kev siv ntau ntawm cov relays thiab contactors ua rau muaj qhov loj ntawm kev saib xyuas ntawm qhov chaw, qhov tsis ua haujlwm siab ntawm cov kev tswj hwm kev ceev, thiab cov kev ntsuas tsis zoo ntawm cov kev tswj hwm kev ceev, uas tsis tuaj yeem ua tau raws li qhov xav tau. cov kev cai tshwj xeeb ntawm kev tsim khoom.
Daim ntawv thov dav ntawm AC qhov sib txawv ntawm qhov sib txawv ntawm cov kev tswj hwm kev ceev ceev hauv kev lag luam muab cov kev daws teeb meem tshiab rau cov txheej txheem loj thiab cov kev cai ceev ceev ntawm cranes uas tau tsav los ntawm AC asynchronous motors. Nws muaj cov ntsuas kev ua haujlwm siab ceev, tuaj yeem siv squirrel tawb asynchronous motors nrog cov qauv yooj yim, txhim khu kev qha kev lag luam thiab kev saib xyuas yooj yim, thiab muaj txiaj ntsig thiab txuag hluav taws xob. Nws cov khoom siv hluav taws xob tswj hluav taws xob yog qhov yooj yim, kev saib xyuas kev ua haujlwm me me, kev tiv thaiv thiab kev saib xyuas kev ua haujlwm tiav, thiab kev ua haujlwm kev ntseeg tau zoo heev piv nrog cov kev cai AC ceev. Yog li ntawd, kev siv AC hloov pauv zaus tswj kev ceev yog lub ntsiab ntawm txoj kev loj hlob ntawm crane AC ceev tswj tshuab.
Tom qab AC qhov sib txawv zaus kev tswj hwm kev siv tshuab siv rau cranes, piv nrog cov tsoos winding asynchronous lub cev muaj zog rotor series tsis kam ceev tswj kev siv dav hauv kev ua lag luam, nws tuaj yeem nqa cov txiaj ntsig tseem ceeb hauv qab no thiab kev nyab xeeb thiab kev ntseeg tau:
(1) Cov cranes siv AC hloov pauv zaus ceev tswj kev siv tshuab muaj qhov zoo ntawm qhov tseeb qhov chaw vim yog cov yam ntxwv ntawm lub cev muaj zog uas tau tsav los ntawm qhov hloov pauv zaus, thiab yuav tsis muaj qhov tshwm sim uas lub cev muaj zog hloov pauv nrog lub nra ntawm cov tsoos cranes, uas tuaj yeem txhim kho kev tsim khoom ntawm kev thauj khoom thiab kev thauj khoom.
(2) Qhov sib txawv zaus crane khiav zoo, pib thiab nres kom zoo, thiab kev vibration thiab cuam tshuam ntawm tag nrho lub tshuab tau txo qis thaum lub sijhawm ua haujlwm nrawm thiab nrawm, uas txhim kho kev nyab xeeb thiab txuas ntxiv lub neej ntawm cov khoom siv ntawm lub crane.
(3) Cov neeg kho tshuab nres tau qhib thaum lub cev muaj zog qis, thiab kev sib tsoo ntawm lub ntsiab sib txuas thiab lub trolley ua tiav los ntawm hluav taws xob braking, yog li lub tshuab nres lub neej ntawm cov neeg kho tshuab nres tau ntev heev thiab cov nqi kho mob raug txo. .
(4) Cov squirrel tawb asynchronous lub cev muaj zog nrog cov qauv yooj yim thiab muaj kev ntseeg siab yog siv los hloov lub winding rotor asynchronous lub cev muaj zog, zam qhov tsis ua hauj lwm ntawm lub cev muaj zog puas tsuaj los yog tsis ua hauj lwm los ntawm kev sib cuag tsis zoo vim hnav los yog corrosion ntawm lub nplhaib thiab txhuam. .
(5) Tus naj npawb ntawm AC contactors raug txo qis heev, thiab lub hauv paus tseem ceeb ntawm lub cev muaj zog tau ua tiav kev tswj tsis tau, zam kev kub hnyiab ntawm cov neeg tiv tauj vim kev ua haujlwm nquag thiab kev puas tsuaj ntawm lub cev muaj zog los ntawm kev kub hnyiab ntawm cov contactor hu.
(6) AC qhov sib txawv ntawm qhov kev tswj hwm qhov ceev ceev tuaj yeem hloov kho qhov nrawm ntawm txhua lub iav thiab lub sijhawm nrawm thiab nrawm raws li cov xwm txheej ntawm qhov chaw, ua rau qhov sib txawv zaus crane hloov tau yooj yim rau kev khiav lag luam thiab muaj qhov hloov tau zoo ntawm qhov chaw.
(7) AC qhov sib txawv ntawm qhov kev tswj hwm qhov ceev ceev yog qhov kev tswj hwm kev ceev ceev nrog kev ua haujlwm siab thiab tsis muaj cua sov, yog li nws txuag hluav taws xob ntau piv rau cov txheej txheem ceev ceev.
(8) Lub tshuab hloov zaus muaj kev tiv thaiv tiav, kev saib xyuas thiab kuaj tus kheej ua haujlwm. Yog tias ua ke nrog PLC tswj, nws tuaj yeem txhim kho kev ntseeg tau zoo ntawm qhov sib txawv zaus crane hluav taws xob tswj qhov system.