Kukho iindlela ezininzi zokunciphisa i-harmonic, kodwa akukho sisombululo sokusombulula zonke iingxaki.Unikezelo lwamandla olwahlukeneyo, umthwalo owahlukileyo, kufuneka sinikeze esona sisombululo silungileyo sokunciphisa i-harmonic.
Itheyibhile engezantsi ithelekisa yeTHDi yeetekhnoloji ezahlukeneyo zokunciphisa i-harmonic ngaphambili.
| Imibhobho emithandathu vfd akukho reactor/iminxa | Ezintandathu pulsed vfd I-capacitor yebhasi ye-DC ephantsi | I-pulse ezintandathu vfd+5% reactor/krwick | Isigaba esi-3 se-vfd esebenzayo ekupheleni kwe-front drive | I-pulse emithandathu vfd+isihluzo sokwenziwa | Iintlobo ezininzi ze-vfd | |
| I-THDi eqhelekileyo | 90--120% | 35--40% | 35--45% | 3--5% | 5--10% | 12 ukubetha:10--12% 18 ukubetha: 5--6% |
| IiPros | Isisombululo esilula kunye neendleko eziphantsi, ezamkelekileyo zofakelo ezinobungakanani obuphantsi babaqhubi abancinci | Isisombululo esilula kunye nexabiso eliphantsi elibangela ukuthotywa kwe-harmonics yangoku | Isisombululo esisemgangathweni kwizicelo zeHVAC | Ukusebenza kakuhle kwe-harmonic kuzo naziphi na izisombululo. Ukukwazi ukunyusa amandla ombane ngexesha leemeko zomgca ophantsi. Umanyano amandla asisiseko. Inokubonelela nge-braking yokuvuselela | Ukucinga ukuba indawo ebonakalayo ikhona, isihluzo se-harmonic esingenasiphelo sinokongezwa emva kokuba i-drive ifakwe, ukuba i-harmonics izimisele ukuba yingxaki. | Indlela yokunciphisa i-harmonic yemveli. |
| Ububi | Umxholo ophezulu we-harmonic, awukhuthazwa ukuba ufakelo olunomthamo ophezulu wokuqhuba. | Ugqweso lwamandla ombane aphezulu, ngaphezulu kwe-pulse ye-vfd emithandathu ene-5% yereactor/krwick. | Iinkqubo ezinobungakanani obukhulu okanye iisayizi ezinkulu zokuqhuba, zinokufuna ukuthomalalisa okongeziweyo kwe-harmonic. | I-drive ngokwayo yenza ubushushu obungaphezulu kancinci kunomgangatho wesithandathu wokuqhuba ipulse enereactor. | Umba wamandla akhokelayo kumthwalo okhanyayo ngaphandle kokuba iicapacitors zesihluzi zicinyiwe yesekethe. Umngcipheko wee-resonances phakathi kwe-filter capacitors kunye nezinye ii-capacitors kwinkqubo. | Ukusebenza okugqibeleleyo kwe-harmonic kufuna ukulungelelana ngokugqibeleleyo amandla e-AC kunye nokugqwetheka okuncinci okungasemva. Kunzima kakhulu ukubuyisela kwakhona ebaleni. |
Ngophuhliso oluqhubekayo lweteknoloji yamandla e-IGBT, inqanaba elitsha lesithathuisihluzo esisebenzayoiye yakhuthazwa ngokubanzi kwaye isetyenziswa kwimarike.APFifumana umqondiso wangoku ngexesha langempela ngokusebenzisa i-transformer yangaphandle yangoku, kwaye ihlukanise inxalenye ye-harmonic ngokusebenzisa i-circuit yokukhangela yangaphakathi, kwaye ivelise imbuyekezo yangoku kunye nesigaba esichaseneyo se-harmonics kwinkqubo ngokusebenzisa umguquli wamandla we-IGBT ukuqonda umsebenzi wokucoca. ngaphandle harmonic.
Imbuyekezo yesiphumo yangoku yeAPFiyahluka ngokuchanekileyo ngokwe-harmonics eguquguqukayo yenkqubo, ngoko ke akuyi kubakho ngxaki yembuyekezo.Ukwengeza,APFinomsebenzi wokukhusela umthwalo ogqithisileyo.Xa i-harmonic yenkqubo inkulu kunomthamo wokucoca, ifowuni inokunciphisa ngokuzenzekelayo imveliso ye-100% yomthamo olinganisiweyo ngaphandle kokugqithiswa.
Ixesha lokuposa: Nov-24-2023