Txhawm rau kom paub qhov txawv txav ceev ntawm lub cev muaj zog, inverter thev naus laus zis tau siv dav hauv kev tawg-pov thawj lub cev muaj zog.Raws li ib tug ntaus ntawv, lub inverter yuav hloov lub hwj chim zaus fais fab mov (50Hz los yog 60Hz) mus rau ib tug ntau yam ntawm zaus AC fais fab mov, thiaj li mus cuag lub variable ceev khiav hauj lwm ntawm lub cev muaj zog.Cov cuab yeej muaj xws li tswj Circuit Court rau tswj lub ntsiab Circuit Court;Rectifier Circuit Court rau converting alternating tam sim no rau direct tam sim no;DC intermediate Circuit Court yog siv los ua kom du thiab lim cov zis ntawm lub rectifier Circuit Court;Inverter Circuit Court, siv los hloov tam sim no ncaj qha rau hauv alternating tam sim no.Hauv qee qhov kev hloov pauv zaus uas yuav tsum tau ua haujlwm ntau, nws tseem yuav tsum tau nruab nrog CPU rau kev suav torque thiab cov khoom sib txuas.Los ntawm kev hloov cov khoom siv hluav taws xob ntau zaus ntawm stator winding ntawm lub cev muaj zog, kev tswj hwm kev ceev ceev tuaj yeem paub lub hom phiaj ntawm kev tswj ceev.
Inverter Raws li cov kev faib tawm sib txawv, tuaj yeem muab faib ua qhov voltage hom inverter thiab tam sim no hom inverter, PAM tswj inverter, PWM tswj inverter thiab siab cab kuj zaus PWM tswj inverter, V / f tswj inverter, plam zaus tswj inverter thiab vector tswj inverter, General inverter, kev ua haujlwm siab tshwj xeeb inverter, siab zaus inverter, ib theem inverter thiab peb theem inverter, thiab lwm yam.
Nyob rau hauv lub zaus converter, VVVF hais txog kev hloov voltage thiab zaus, thaum CVCF hais txog qhov tsis tu ncua voltage thiab qhov zaus.Hauv AC fais fab mov siv nyob rau hauv lub teb chaws thoob ntiaj teb, txawm nyob rau hauv tsev los yog factories, qhov voltage thiab zaus feem ntau yog 400V / 50Hz los yog 200V / 60Hz (50Hz).Cov cuab yeej uas hloov cov khoom siv hluav taws xob zoo li no rau hauv qhov hluav taws xob lossis zaus hloov pauv AC fais fab mov yog hu ua "frequency converter".Txhawm rau tsim kom muaj qhov sib txawv voltages thiab zaus, lub cuab yeej ua ntej yuav tsum hloov pauv tam sim no mus rau qhov tam sim no ncaj qha (DC).
Cov zaus converter yog siv los tswj lub cev muaj zog thiab tuaj yeem hloov tau ob qho tib si voltage thiab zaus.Raws li cov lus qhia ceev ntawm AC lub cev muaj zog, qhov ceev n yog proportional rau zaus f, thiab qhov ceev ntawm lub cev muaj zog tuaj yeem hloov kho ntev npaum li qhov zaus f hloov.Yog li ntawd, lub zaus converter realizes ceev tswj los ntawm kev hloov lub cev muaj zog fais fab mov zaus, uas yog ib tug high efficiency thiab high-ceev kev tswj kev ceev txhais tau tias.
Hauv kev txhim kho cov zaus hloov pauv, ntau txoj hauv kev tswj tau hloov zuj zus, suav nrog:
Sinusoidal pulse width modulation (SPWM) tswj hom, qhov twg 1U / f = C;
Voltage space vector (SVPWM) tswj hom;
Vector tswj (VC) hom;
Direct torque tswj (DTC) hom;
Matrix kev sib tshuam - kev sib tshuam tswj hom, thiab lwm yam.
Saum toj no, lub tswv yim thov ntawm inverter nyob rau hauv tawg-pov thawj lub cev muaj zog tau piav qhia.Los ntawm kev siv tshuab inverter, qhov ceev ntawm lub cev muaj zog tuaj yeem hloov kho tau yooj yim, nqa cov kev ua haujlwm siab thiab kev ua haujlwm siab zog rau kev lag luam.
Post lub sij hawm: Aug-26-2023
