Kab lus no yuav tham txog lub zaus hloov pauv rau lub tshuab hluav taws xob, lub hauv paus ntsiab lus ntawm nws txoj haujlwm thiab cov khoom tseem ceeb. Lub ntsiab tseem ceeb yuav raug muab tso rau hauv txoj kev xav, kom koj nkag siab lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub zaus hloov pauv thiab muaj peev xwm txuas ntxiv tsim thiab tsim khoom nrog koj tus kheej tes. Tab sis ua ntej, koj xav tau ib qho kev qhia me me, uas yuav qhia koj tias qhov hloov pauv zaus yog dab tsi thiab rau lub hom phiaj twg nws xav tau.
Inverter ua haujlwm
Tus tsov ntxhuav feem hauv kev lag luam yog nyob los ntawm asynchronous motors. Thiab nws yeej ib txwm nyuaj rau tswj lawv, txij li thaum lawv muaj qhov ceev ntawm rotor tsis tu ncua, thiab hloov cov input voltage hloov mus rau qhov nyuaj heev, thiab qee zaum txawm tias tsis yooj yim sua. Tab sis lub zaus converter kiag li hloov daim duab. Thiab yog tias ua ntej, piv txwv li, ntau lub gearboxes tau siv los hloov qhov ceev ntawm conveyor, hnub no nws txaus los siv ib lub tshuab hluav taws xob.
Ntxiv rau, chastotniki tso cai rau koj kom tsis tau tsuas yog muaj peev xwm hloov cov tsav tsheb, tab sis kuj muaj ntau qib ntxiv ntawm kev tiv thaiv. Tsis tas yuav tsum muaj hluav taws xob pib, thiab qee zaumNws tsis yog txawm tias tsim nyog kom muaj peb-theem network los xyuas kom meej lub cev ua haujlwm ntawm lub cev muaj zog induction. Tag nrho cov haujlwm no cuam tshuam nrog kev hloov pauv thiab tig ntawm lub zog tsav hluav taws xob raug xa mus rau qhov hloov pauv zaus. Nws tso cai rau koj hloov cov theem ntawm cov zis, qhov zaus ntawm qhov tam sim no (thiab yog li qhov ceev ntawm lub rotor hloov), kho qhov pib thiab nres, thiab koj tuaj yeem siv ntau lwm yam haujlwm. Nws tag nrho yog nyob ntawm lub microcontroller siv nyob rau hauv lub tswj Circuit Court.
Txoj Cai Ua Haujlwm
Ua qhov hloov pauv zaus rau lub tshuab hluav taws xob nrog koj tus kheej tes, daim duab uas tau muab rau hauv kab lus, yog qhov yooj yim heev. Nws tso cai rau koj hloov ib theem mus rau peb. Yog li ntawd, nws tuaj yeem siv lub tshuab hluav taws xob asynchronous hauv lub neej txhua hnub. Nyob rau tib lub sijhawm, nws cov txiaj ntsig thiab lub zog yuav tsis ploj. Tom qab tag nrho, koj paub tias thaum koj qhib lub cev muaj zog hauv lub network nrog ib theem, cov kev txwv no yuav luag ib nrab. Thiab nws yog txhua yam hais txog ntau qhov kev hloov pauv ntawm qhov hluav taws xob nkag mus rau lub tswv yim ntawm lub cuab yeej.
Lub tsev rectifier yog thawj zaug hauv lub tswv yim. Nws yuav tau tham txog ntau yam hauv qab no. Tom qab rectified voltage yog lim. Thiab ib tug huv direct tam sim no nkag mus rau lub input ntawm lub inverter. Nws converts direct tam sim no mus rau alternating tam sim no nrog rau tus naj npawb ntawm cov theem. Qhov no cascade tuaj yeem raug hloov kho. Nws muaj cov semiconductors uas tswj Circuit Court ntawm microcontroller txuas nrog. Tab sis tam sim no hais txog tag nrho cov nodes hauv kev nthuav dav ntxiv.
Rectifier unit
Nws tuaj yeem yog ob hom - ib- thiab peb-theem. Thawj hom rectifier tuaj yeem siv tau hauv txhua lub network. Yog tias koj muaj peb-theem, ces nws txaus los txuas rau ib qho. Lub chastotnik Circuit Court rau lub tshuab hluav taws xob tsis ua tiav yam tsis muaj lub tshuab rectifier. Txij li thaum muaj qhov sib txawv ntawm cov theem, nws txhais tau hais tias yuav tsum siv qee tus naj npawb ntawm semiconductor diodes. Yog hais tias peb tham txog zaus converters uas yog powered los ntawm ib theem, ces ib tug plaub-diode rectifier yuav tsum tau. Lawv txuas ntxiv.
Nws tso cai rau koj txo qhov sib txawv ntawm tus nqi hluav taws xob ntawm qhov kev tawm tswv yim thiab cov zis. Tau kawg, ib nrab-yoj Circuit Court kuj siv tau, tab sis nws tsis muaj txiaj ntsig, thiab muaj ntau qhov oscillations tshwm sim. Tab sis yog hais tias peb tham txog peb-theem kev twb kev txuas, nws yog tsim nyog los siv rau ib tug semiconductors nyob rau hauv Circuit Court. Raws nraim tib lub voj voog hauv lub rectifier ntawm lub tshuab hluav taws xob tsheb, tsis muaj qhov sib txawv. Qhov tsuas yog qhov uas tuaj yeem ntxiv ntawm no yog peb lub diodes ntxiv rau kev tiv thaiv qhov hluav taws xob rov qab.
Filter elements
Tom qab lub rectifier los lim. Nws lub hom phiaj tseem ceeb yog txiav tawm tag nrho cov khoom sib txawv ntawm cov khoom siv tam sim no. Txhawm rau kom pom cov duab meej dua, koj yuav tsum kos ib lub voj voog sib npaug. Yog li, ntxiv mus los ntawm lub kauj. Thiab tom qab ntawd ib qho electrolytic capacitor txuas ntawm qhov ntxiv thiab rho tawm. Qhov no yog dab tsi nthuav nyob rau hauv lub hloov Circuit Court. Yog hais tias lub kauj yog hloov los ntawm reactance, ces lub capacitor, yog tias tam sim no,txawv tam sim no tuaj yeem yog tus neeg xyuas pib lossis tawg.
Raws li tau hais, cov zis ntawm lub rectifier yog tam sim no ncaj qha. Thiab thaum nws yog siv rau electrolytic capacitor, tsis muaj dab tsi tshwm sim, txij li thaum kawg yog qhib Circuit Court. Tab sis muaj qhov sib txawv me me hauv qhov tam sim no. Thiab yog hais tias ib qho alternating tam sim no ntws, ces nyob rau hauv qhov sib npaug Circuit Court, lub capacitor ua ib tug conductor. Yog li ntawd, muaj ib tug kaw ntawm plus to minus. Cov lus xaus no yog ua raws li Kirchhoff cov cai, uas yog qhov tseem ceeb hauv kev tsim hluav taws xob.
YPower Transistor Inverter
Thiab tam sim no peb tau mus txog qhov tseem ceeb tshaj plaws - lub transistor cascade. Lawv ua ib qho inverter - DC-rau-AC converter. Yog tias koj tab tom ua qhov hloov pauv zaus rau lub tshuab hluav taws xob nrog koj tus kheej tes, nws raug nquahu kom siv cov khoom sib dhos ntawm IGBT transistors, koj tuaj yeem nrhiav tau lawv hauv txhua lub khw muag khoom hauv xov tooj cua. Ntxiv mus, tus nqi ntawm tag nrho cov Cheebtsam rau kev tsim cov zaus converter yuav yog kaum npaug tsawg dua tus nqi ntawm cov khoom tiav, txawm tias ua nyob rau hauv Suav teb.
Ob lub transistors siv rau txhua theem. Lawv suav nrog ntawm qhov ntxiv thiab qhov rho tawm, raws li qhia hauv daim duab hauv kab lus. Tab sis txhua transistor muaj ib tug feature - ib tug tswj tso zis. Nyob ntawm seb lub teeb liab twg siv rau nws, cov khoom ntawm cov khoom siv hluav taws xob hloov pauv. Ntxiv mus, qhov no tuaj yeem ua tiav ob qho tib si nrog kev pab ntawm kev hloov pauv (piv txwv li, siv qhov hluav taws xob rau qhov tsim nyog tswj cov zis nrog ntau lub microswitches), thiab tsis siv neeg. Hais txogyav tom ntej thiab yuav tau tham ntxiv.
Control scheme
Thiab yog tias qhov kev sib txuas ntawm cov zaus hloov pauv mus rau lub tshuab hluav taws xob yog qhov yooj yim, koj tsuas yog xav tau txuas cov khoom siv sib txuas, ces txhua yam yuav nyuaj dua nrog cov tswj Circuit Court. Qhov tshaj plaws yog tias yuav tsum tau ua qhov kev pab cuam lub cuab yeej thiaj li ua tiav qhov kev hloov kho siab tshaj plaws los ntawm nws. Hauv plawv yog microcontroller, uas cov nyeem thiab cov actuators txuas nrog. Yog li, nws yog ib qho tsim nyog yuav tsum muaj tam sim no transformers uas yuav saib xyuas lub zog siv hluav taws xob tas li. Thiab yog tias muaj ntau tshaj, lub zaus hloov pauv yuav tsum raug muab tua.
Kev sib txuas ntawm kev tswj xyuas
Tsis tas li ntawd, muaj kev tiv thaiv overheating. Kev tswj cov zis ntawm IGBT transistors txuas nrog cov zis ntawm microcontroller siv cov khoom sib txuam (Darlington sib dhos). Tsis tas li ntawd, nws yog ib qho tsim nyog los tswj qhov tsis pom kev, yog li koj yuav tsum suav nrog LED zaub hauv Circuit Court. Ntawm cov neeg nyeem, koj yuav tsum tau ntxiv cov nyees khawm uas yuav tso cai rau koj hloov pauv ntawm cov programming hom, nrog rau kev hloov pauv hloov pauv, los ntawm kev tig nws, qhov nrawm ntawm kev sib hloov ntawm lub rotor ntawm lub tshuab hluav taws xob hloov pauv.
Zoo kawg
Kuv xav kom nco ntsoov tias koj tuaj yeem ua koj tus kheej zaus hloov pauv rau lub tshuab hluav taws xob, tus nqi ntawm cov khoom tiav pib los ntawm 5000 rubles. Thiab qhov no yog rau cov tshuab hluav taws xob uas nws lub zog tsis tshaj 0.75 kW. Yog tias koj xav tau kev tswj hwm ntau duamuaj zog tsav, koj yuav xav tau ib tug kim kim chastotnik. Rau kev siv nyob rau hauv lub neej txhua hnub, cov tswv yim sib tham hauv qab no yog txaus. Yog vim li cas yog tias tsis tas yuav tsum muaj ntau lub zog thiab kev teeb tsa, qhov tseem ceeb tshaj plaws yog lub peev xwm hloov lub rotor ceev.
