Umahluko phakathi kwe-inverter yesigaba esisodwa kunye ne-inverter yesigaba sesithathu

1. I-inverter yesigaba esinye

Inverter yenqanaba elinye iguqula igalelo le-DC libe yimveliso yenqanaba elinye.I-voltage ye-output / yangoku ye-inverter yesigaba esisodwa sisigaba esinye kuphela, kwaye i-frequency yayo ebizwa ngokuba yi-50HZ okanye i-60Hz i-voltage nominal.Umbane oqhelekileyo uchazwa njengenqanaba lombane apho inkqubo yombane isebenza khona.Kukho amandla ombane ahlukeneyo, oko kukuthi i-120V, 220V, 440V, 690V, 3.3KV, 6.6KV, 11kV, 33kV, 66kV, 132kV, 220kV, 400kV, kunye ne-765kV yamandla othungelwano olu-1. , Yi-11kV, 22kV, 66kV, njl.

Amandla ombane asezantsi anokufezekiswa ngokuthe ngqo nge-inverter usebenzisa i-transformer yangaphakathi okanye i-step-up booster circuit, ngelixa i-voltage ephezulu ye-nominal isetyenziselwa i-booster transformer yangaphandle.

Ii-inverters zesigaba esisodwa zisetyenziselwa imithwalo ephantsi.Xa kuthelekiswa ne-inverter yesigaba sesithathu, ukulahleka kwesigaba esisodwa kukhulu kwaye ukusebenza kakuhle kuphantsi.Ngoko ke, ii-inverters zesigaba sesithathu zikhethwa kwimithwalo ephezulu.

2. I-inverter yesigaba esithathu

Iziguquli zesigaba esithathu ziguqula i-DC ibe amandla amanqanaba amathathu.Unikezelo lwamandla amanqanaba amathathu lubonelela ngokutshintshana kwangoku okuthathu kunye nee-engile zesigaba esahlulwe ngokulinganayo.Onke amaza amathathu avelisiweyo kwisiphelo semveliso ane-amplitude efanayo kunye ne-frequency, kodwa ahluke kancinci ngenxa yomthwalo, ngelixa i-wave nganye ine-120o yesigaba sokutshintsha phakathi komnye nomnye.

Ngokwenene, i-inverter eyodwa yesigaba sesithathu i-3 inverter yesigaba esisodwa, apho i-inverter nganye i-120 degrees ngaphandle kwesigaba, kwaye i-inverter nganye yesigaba esisodwa idibaniswe kwelinye lee-terminal ezintathu zomthwalo.

Uphendlo lomxholo: Yintoni inverter enezigaba ezithathu, yintoni indima

Kukho ii-topology ezahlukeneyo zokwakhiwa kweesekethe ze-voltage inverter zesigaba sesithathu.Ukuba i-inverter yebhulorho, iqhuba i-switch kwimodi ye-degree ye-120 ukusebenza kwe-inverter yesigaba sesithathu yenza ukuba utshintsho ngalunye lusebenze ixesha elipheleleyo le-T / 6, elivelisa i-waveform ephumayo kunye namanyathelo ama-6.Kukho inyathelo lombane elingu-zero phakathi kwamanqanaba ombane alungileyo kunye angalunganga we-square wave.

Umlinganiselo wamandla we-inverter unokwandiswa ngakumbi.Ukuze kwakhiwe i-inverter enezinga eliphezulu lamandla, ii-inverters ezi-2 (i-inverters ezithathu) zixhunyiwe kwi-series ukuze zifumane umlinganiselo ophezulu wombane.Kwimilinganiselo ephezulu yangoku, i-2 6-step 3 inverters inokudityaniswa.