Kodi Variable Frequency Drive Itha Kusinthidwa Ndi Motor Soft Starter?

Kodi Variable Frequency Drive Itha Kusinthidwa Ndi Motor Soft Starter?

Ndikukumana ndi makasitomala ochulukirachulukira omwe amandifunsa mafunso ambiri ndipo ndine wolemekezeka kwambiri kukumana nawo ndikukambirana nawo za kuyendetsa magalimoto.Ena mwa makasitomala nthawi zonse amadabwa ngatima frequency drivesakhoza kusinthidwa ndizoyambira zofewa.Lero ndikupatsani lingaliro:

1. Mfundo yoyendetsera zoyambira zofewa ndi zosinthira pafupipafupi ndizosiyana

Dera waukulu wa sitata zofewa chikugwirizana mu mndandanda pakati pa magetsi ndi galimoto mu atatu zotsutsana kufanana thyristor, kudzera mkati digito dera kulamulira thyristor mu wathunthu sinusoidal waveform wa alternating panopa kutembenukira pa nthawi, ngati pa chiyambi. wa AC mkombero lolani thyristor kuyatsa, ndiye zofewa sitata linanena bungwe voteji ndi mkulu, Ngati thyristor anazimitsa pa mfundo ina mu mkombero wa alternating panopa, voteji linanena bungwe zoyambira zofewa ndi otsika.Mwanjira iyi, timapanga voteji kumapeto kwa galimotoyo kukwera pang'onopang'ono poyambira, ndiyeno timayendetsa poyambira komanso torque ya injini, kuti galimotoyo ikwaniritse cholinga choyambira mokhazikika.Zitha kuwoneka kuti choyambitsa chofewa chimangosintha mlingo wamagetsi wamagetsi, koma osati mafupipafupi a magetsi.
Mfundo yosinthira pafupipafupi imakhala yovuta.Ntchito yake ndikusintha voteji ya 380V/220V ndi ma frequency a 50HZ magetsi kukhala chida chosinthira mphamvu ya AC chokhala ndi voteji chosinthika komanso pafupipafupi.Posintha ma frequency ndi ma frequency amagetsi, torque ndi liwiro la mota ya AC zitha kusinthidwa.Dera lake lalikulu ndi dera lopangidwa ndi machubu 6 amphamvu, motsogozedwa bwino ndi dera lowongolera, kotero kuti machubu asanu ndi limodzi amayatsa, mu nthawi ya unit, kuchuluka kwa chubu, ndiye mphamvu yamagetsi ndi ma frequency. ndi apamwamba, kotero dera lalikulu lili pansi pa ulamuliro wa digito kulamulira dera kukwaniritsa pafupipafupi malamulo a linanena bungwe magetsi ndi voteji lamulo.

2. Ntchito zachoyambira chofewandi inverter ndizosiyana

Vuto lalikulu la zoyambira zofewa ndikuchepetsa kuyambika kwa katundu wolemetsa ndikuchepetsa mphamvu pa gridi yamagetsi.Kuyambika kwa zida zazikulu kudzatulutsa mphamvu yayikulu kwambiri yoyambira, zomwe zingayambitse kutsika kwakukulu kwamagetsi.Ngati njira yachikhalidwe yotsika pansi monga katatu ya nyenyezi ikugwiritsidwa ntchito, sizidzangoyambitsa mphamvu yaikulu yamakono pa gridi yamagetsi, komanso imayambitsa mphamvu yaikulu yamakina pa katunduyo.Pankhaniyi, choyambira chofewa nthawi zambiri chimagwiritsidwa ntchito poyambira, kuti azindikire kuyambika konse popanda kukhudza ndikupangitsa injiniyo kuti iyambe kukhala yosalala.Motero mphamvu zochepa mphamvu.

Kugwiritsa ntchitofrequency converterAmagwiritsidwa ntchito kwambiri m'malo ndi malamulo othamanga, amatha kuwongolera liwiro la mota ya magawo atatu, monga mu CNC makina chida spindle motor speed regulation, mechanical conveyor lamba transmission control, mafani akuluakulu, makina olemera angagwiritsidwe ntchito chosinthira pafupipafupi, kawirikawiri, ntchito yake ndi yothandiza kwambiri kuposa choyambira chofewa.

3. Ntchito yolamulira yosinthira pafupipafupi ya zoyambira zofewa ndizosiyana

Ntchito yayikulu ya choyambira chofewa ndikusintha ma voliyumu oyambira agalimoto kuti azindikire kuyambika kosalala kwa mota kuti achepetse mphamvu ya mota pamakina ndi gridi yamagetsi.Komabe, chifukwa amazilamulira voteji ndi chopper kudzera kulamulira conduction Angle, linanena bungwe ndi chosakwanira sine yoweyula, amene amatsogolera otsika kuyambira makokedwe, phokoso lalikulu ndi harmonics mkulu adzaipitsa gululi mphamvu.Ngakhale zoyambira zofewa zimangokhala ndi kukhazikitsa kwa mtsinje, kuyika kwa nthawi yoyambira ndi ntchito zina, koma ndi chosinthira pafupipafupi, magawo ogwirira ntchito a choyambira chofewa amakhala osasangalatsa.Nthawi zambiri, ntchito ya zoyambira zofewa sizofanana ndi zosinthira pafupipafupi.

4. Mtengo wa zoyambira zofewa ndizosiyana ndi zosinthira pafupipafupi

Zida ziwiri zowongolera zomwe zili mumphamvu yofanana, kuchokera pamtengo wa inverter ndi wapamwamba kuposa zoyambira zofewa.

Nthawi zambiri, choyambira chofewa chimagwiritsidwa ntchito kwambiri pazida zamphamvu kwambiri ngati zida zoyambira, ndipo chosinthira pafupipafupi chimagwiritsidwa ntchito kwambiri pakuwongolera liwiro lamphamvu zosiyanasiyana.Nthawi zambiri, chosinthira pafupipafupi sichingasinthidwe ndi choyambira chofewa.