Los ntawm kab lus no koj yuav kawm paub dab tsi lub zaus hloov pauv rau lub tshuab hluav taws xob yog, xav txog nws lub voj voog, lub hauv paus ntsiab lus ntawm kev ua haujlwm, thiab tseem kawm txog cov chaw tsim khoom tsim. Lub hom phiaj tseem ceeb yuav yog ntawm kev ua ib qho kev hloov pauv zaus nrog koj tus kheej txhais tes. Tau kawg, rau qhov no koj yuav tsum muaj tsawg kawg yog ib lub tswv yim dav dav ntawm kev siv tshuab hluav taws xob. Nws yog ib qho tsim nyog los pib nrog lub hom phiaj uas siv cov zaus hloov pauv.
Thaum xav tau IF
Niaj hnub nimno zaus converters yog cov khoom siv thev naus laus zis uas muaj cov khoom raws li cov khoom siv semiconductors. Tsis tas li ntawd, muaj ib qho kev tswj xyuas hluav taws xob tsim los ntawm microcontroller. Nrog nws cov kev pab, tag nrho cov tsis tseem ceeb tshaj plaws ntawm lub tshuab hluav taws xob yog tswj. Hauv particular, nrog kev pab los ntawm ib tug zaus converter, nws muaj peev xwm hloov qhov kev sib hloov ceev ntawm lub tshuab hluav taws xob. Muaj ib lub tswv yim yuav ib zaus converter rauhluav taws xob lub cev muaj zog. Tus nqi ntawm cov khoom siv rau lub cev muaj zog ntawm 0.75 kW yuav yog kwv yees li 5-7 txhiab rubles.
Nws tsim nyog sau cia tias koj tuaj yeem hloov qhov kev sib hloov ceev uas siv lub gearbox tsim los ntawm lub variator, lossis hom iav. Tab sis cov qauv zoo li no loj heev, nws tsis yog ib txwm siv tau. Tsis tas li ntawd, cov txheej txheem zoo li no yuav tsum tau muab kev pabcuam raws sijhawm, thiab lawv txoj kev ntseeg siab tsawg kawg nkaus. Kev siv lub tshuab hloov zaus tso cai rau koj los txo tus nqi ntawm kev pabcuam hluav taws xob, nrog rau kev ua kom nws muaj peev xwm.
Lub ntsiab lus ntawm lub zaus hloov pauv
Txhua zaus hloov pauv muaj plaub lub ntsiab lus:
- Rectifier unit.
- DC filtering devices.
- Inverter sib dhos.
- Microprocessor tswj qhov system.
Txhua tus ntawm lawv yog kev sib tshuam, thiab chav tswj hwm tswj kev ua haujlwm ntawm cov zis theem - lub inverter. Nws yog nrog nws cov kev pab uas cov zis cov yam ntxwv ntawm lub alternating tam sim no hloov.
Nws yuav piav qhia hauv qab no, ib daim duab qhia. Lub zaus converter rau lub tshuab hluav taws xob muaj ob peb yam ntxiv. Nws yuav tsum raug sau tseg tias cov cuab yeej suav nrog ntau qib kev tiv thaiv, uas tseem tswj hwm los ntawm microcontroller ntaus ntawv. Hauv particular, kev tswj qhov kub thiab txias ntawm cov khoom siv hluav taws xob semiconductor yog nqa tawm. Tsis tas li ntawd, muaj kev ua haujlwm ntawm kev tiv thaiv luv luv thiab overcurrent. Ntau zausLub converter yuav tsum tau txuas nrog cov khoom siv network los ntawm kev tiv thaiv cov khoom siv. Tsis tas yuav muaj qhov pib sib nqus.
Ntau zaus converter rectifier
Nov yog thawj qhov qauv uas tam sim no ntws los. Nrog nws cov kev pab, alternating tam sim no yog rectified - hloov mus rau direct tam sim no. Qhov no tshwm sim vim yog siv cov khoom xws li semiconductor diodes. Tab sis tam sim no nws yog tsim nyog hais txog ib tug me me feature. Koj paub tias feem ntau induction motors yog siv los ntawm peb-theem AC mains. Tab sis qhov no tsis muaj nyob txhua qhov chaw. Tau kawg, cov lag luam loj muaj nws, tab sis nws tsis tshua siv nyob rau hauv lub neej txhua hnub, vim nws yooj yim dua los ua ib theem ib zaug. Yog, thiab suav nrog hluav taws xob, txhua yam yooj yim dua.
Thiab cov zaus hloov pauv tuaj yeem siv tau ob qho tib si los ntawm peb-theem network thiab los ntawm ib theem ib zaug. Qhov txawv yog dab tsi? Thiab nws yog qhov tsis tseem ceeb, ntau hom rectifiers tau siv hauv kev tsim. Yog hais tias peb tab tom tham txog ib-theem zaus converter rau ib lub tshuab hluav taws xob, ces nws yog ib qho tsim nyog yuav tsum tau siv ib lub voj voog ntawm plaub lub semiconductor diodes txuas rau hauv ib hom choj. Tab sis yog tias xav tau lub zog los ntawm peb-theem network, koj yuav tsum xaiv ib lub voj voog sib txawv, suav nrog rau 6 semiconductor diodes. Ob lub ntsiab lus hauv txhua caj npab, vim li ntawd koj yuav tau txais AC rectification. Cov zis yuav qhia ntxiv thiab rho tawm.
DC voltage filtering
Txoj kev tawm musrectifier, koj muaj qhov tsis tu ncua voltage, tab sis nws muaj ripples loj, qhov sib txawv ntawm cov khoom tseem plam. Txhawm rau tshem tawm tag nrho cov "roughnesses" tam sim no, koj yuav tsum siv yam tsawg kawg ob lub ntsiab lus - inductor thiab electrolytic capacitor. Tab sis txhua yam yuav tsum tau qhia kom ntxaws ntxiv.
Lub inductor muaj ntau qhov kev hloov pauv, nws muaj qee qhov reactance, uas tso cai rau koj kom me ntsis smooth tawm lub ripple ntawm tam sim no ntws los ntawm nws. Cov khoom thib ob yog lub capacitor txuas ntawm ob tug ncej. Nws muaj qee qhov nthuav dav heev. Thaum cov dej ntws ncaj qha, raws li Kirchhoff txoj cai, nws yuav tsum tau hloov los ntawm kev so, uas yog, muaj, zoo li nws, tsis muaj dab tsi ntawm qhov ntxiv thiab rho tawm. Tab sis thaum lub alternating tam sim no ntws, nws yog ib tug neeg xyuas pib, ib daim hlau tsis muaj zog. Raws li tau hais los saum toj no, ncaj qha tam sim no ntws, tab sis muaj ib qho me me ntawm kev hloov tam sim no hauv nws. Thiab nws kaw, raws li qhov tshwm sim ntawm qhov nws tsuas ploj mus.
Inverter module
Lub inverter sib dhos yog, kom meej, qhov tseem ceeb tshaj plaws hauv kev tsim tag nrho. Nws yog siv los hloov cov kev txwv ntawm cov zis tam sim no. Tshwj xeeb, nws zaus, voltage, thiab lwm yam. Lub inverter muaj rau tswj transistors. Rau txhua theem, ob lub ntsiab lus semiconductor. Nws yog ib nqi sau cia hais tias niaj hnub sib dhos ntawm IGBT transistors yog siv nyob rau hauv lub inverter theem. Txawm tias hauv tsev, txawm tias Delta zaus converter, feem ntau siv nyiaj txiag thiab pheej yig niaj hnub no, muaj tib lub nodes. Cov possibilities tsuas yog txawv xwb.
Lawv muaj peb lub tswv yim, tib tus lej ntawm cov khoom tawm, nrog rau rau lub ntsiab lus ntawm kev sib txuas rau cov cuab yeej tswj. Nws yuav tsum tau muab sau tseg tias nyob rau hauv lub ywj siab tsim ntawm ib tug zaus converter, nws yog tsim nyog los xaiv ib tug sib dhos raws li lub hwj chim. Yog li ntawd, koj yuav tsum txiav txim siab tam sim ntawd yam lub cev muaj zog yuav txuas nrog lub zaus hloov pauv.
Microprocessor tswj qhov system
Nrog rau tus kheej tsim tawm, nws tsis zoo li nws yuav ua tau kom ua tiav tib yam tsis muaj kev lag luam tsim muaj. Yog vim li cas rau qhov no yog tsis nyob rau hauv tag nrho cov nyob rau hauv lub fact tias lub manufactured assemblies ntawm lub hwj chim transistors yog inefficient. Qhov tseeb yog tias nyob hauv tsev nws yog qhov nyuaj heev los ua tus tswj module. Tau kawg, qhov no tsis yog hais txog cov khoom siv, tab sis hais txog kev tsim cov khoom siv microcontroller. Qhov kev xaiv yooj yim tshaj plaws yog los ua ib chav tswj uas koj tuaj yeem kho qhov kev sib hloov ceev, thim rov qab, tam sim no thiab tiv thaiv overheat.
Txhawm rau hloov qhov kev sib hloov ceev, koj yuav tsum siv qhov sib txawv ntawm qhov tsis sib xws, uas txuas nrog qhov chaw nkag ntawm microcontroller. Qhov no yog ib qho khoom siv tswv uas xa cov teeb liab mus rau microcircuit. Lub tom kawg txheeb xyuas cov theem ntawm qhov hloov pauv voltage piv rau qhov siv, uas yog 5 V. Cov kev tswj xyuas ua haujlwm raws li ib qho algorithm, uas tau sau ua ntej programming. nruj me ntsis raws li nws, kev ua haujlwm ntawm microprocessor system tshwm sim. Nrov heev tuam txhab tswj modulesSiemens. Cov zaus hloov pauv ntawm cov chaw tsim khoom no muaj kev ntseeg siab, tuaj yeem siv rau txhua hom hluav taws xob tsav.
Yuav teeb tsa lub zaus hloov pauv li cas
Hnub no, muaj ntau tus neeg tsim khoom ntawm cov cuab yeej no. Tab sis qhov kev hloov kho algorithm yuav luag tib yam rau txhua tus. Tau kawg, nws yuav tsis ua hauj lwm los kho qhov zaus converter yam tsis muaj kev paub. Koj yuav tsum muaj ob yam - kev paub txog kev hloov kho thiab phau ntawv ua haujlwm. Lub tom kawg muaj ib daim ntawv ntxiv uas piav qhia txog txhua txoj haujlwm uas tuaj yeem ua haujlwm tau. Feem ntau muaj ob peb lub nyees khawm ntawm cov ntaub ntawv ntawm lub zaus converter. Yam tsawg kawg yog plaub daim yuav tsum muaj. Ob qho yog npaj rau kev hloov pauv ntawm kev ua haujlwm, nrog kev pab los ntawm lwm tus, cov kev txwv raug xaiv lossis cov ntaub ntawv nkag tau raug muab tso tseg. Txhawm rau hloov mus rau hom programming, koj yuav tsum nias lub pob tshwj xeeb.
Txhua tus qauv hloov pauv zaus muaj nws tus kheej algorithm rau kev nkag mus rau hom programming. Yog li ntawd, nws tsis tuaj yeem ua yam tsis muaj phau ntawv qhia. Nws tseem tsim nyog sau cia tias cov haujlwm tau muab faib ua ntau pawg sub. Thiab nws yooj yim kom poob rau hauv lawv. Sim tsis txhob hloov cov chaw uas cov chaw tsim khoom tsis pom zoo kom kov. Cov kev teeb tsa no tsuas yog hloov pauv hauv qhov tshwj xeeb. Thaum koj xaiv qhov programming muaj nuj nqi, koj yuav pom nws lub npe alphanumeric ntawm cov zaub. Raws li koj tau txais kev paub dhau los, kho qhov zaus hloov pauv yuav zoo li yooj yim rau koj.
Cov Lus Qhia
Thaumkev ua haujlwm, kev saib xyuas lossis kev tsim khoom ntawm lub zaus hloov pauv, txhua yam kev tiv thaiv kev nyab xeeb yuav tsum tau ua. Nco ntsoov tias tus qauv tsim ntawm lub cuab yeej muaj cov khoom siv hluav taws xob electrolytic uas khaws lawv cov nqi txawm tias tom qab txiav tawm ntawm AC mains. Yog li ntawd, ua ntej disassembled, nws yog ib qhov tsim nyog yuav tau tos rau qhov tso tawm. Thov nco ntsoov tias muaj cov ntsiab lus hauv kev tsim cov zaus hloov pauv uas ntshai ntawm hluav taws xob zoo li qub. Hauv particular, qhov no siv rau microprocessor tswj system. Yog li ntawd, soldering yuav tsum tau ua nrog txhua yam ceev faj.
