Umehluko phakathi kwe-inverter yesigaba esisodwa kanye ne-inverter yezigaba ezintathu

1. I-inverter yesigaba esisodwa

I-inverter yesigaba esisodwa iguqula okokufaka kwe-DC kube okuphumayo kwesigaba esisodwa.I-voltage ephumayo/yamanje ye-inverter yesigaba esisodwa iyisigaba esisodwa kuphela, futhi imvamisa yayo yokulinganisa ingu-50HZ noma i-60Hz i-voltage yegama.I-voltage yegama ichazwa njengezinga likagesi lapho uhlelo lukagesi lusebenza khona.Kunama-voltage ahlukene ajwayelekile, okungukuthi 120V, 220V, 440V, 690V, 3.3KV, 6.6KV, 11kV, 33kV, 66kV, 132kV, 220kV, 400kV, kanye no-765kV wokudluliswa kwamandla amaningi ku-1 , Okungu-11kV, 22kV, 66kV, njll.?

Ama-voltage aphansi angafinyelelwa ngokuqondile nge-inverter kusetshenziswa i-transformer yangaphakathi noma i-step-up booster circuit, kuyilapho kuma-voltage aphezulu okuzisholo kusetshenziswa i-booster transformer yangaphandle.

Ama-inverter esigaba esisodwa asetshenziselwa imithwalo ephansi.Uma kuqhathaniswa ne-inverter yezigaba ezintathu, ukulahlekelwa kwesigaba esisodwa kukhulu futhi ukusebenza kahle kuphansi.Ngakho-ke, ama-inverters ezigaba ezintathu akhethwa ngemithwalo ephezulu.

2. I-inverter enezigaba ezintathu

Ama-inverters ezigaba ezintathu aguqula i-DC ibe amandla ezigaba ezintathu.Ukunikezwa kwamandla kwezigaba ezintathu kunikeza amandla amathathu ashintshanayo anama-engeli esigaba ahlukaniswe ngokulinganayo.Wonke amagagasi amathathu akhiqizwa ekugcineni okuphumayo ane-amplitude efanayo kanye nemvamisa, kodwa ahluke kancane ngenxa yomthwalo, kuyilapho igagasi ngalinye linokushintsha kwesigaba se-120o phakathi komunye nomunye.

Ngokuyisisekelo, i-inverter eyodwa yezigaba ezintathu inverter ye-3 yesigaba esisodwa, lapho i-inverter ngayinye ine-120 degrees ngaphandle kwesigaba, futhi inverter ngayinye yesigaba esisodwa ixhunywe kwelinye lamatheminali amathathu okulayisha.

Phequlula okuqukethwe: Iyini inverter enezigaba ezintathu, iyini indima

Kunama-topology ahlukene okwakha amasekhethi e-voltage inverter enezigaba ezintathu.Uma kuyi-inverter yebhuloho, ukusebenzisa ukushintshwa kumodi ye-120 degree ukusebenza kwe-inverter yezigaba ezintathu kwenza inkinobho ngayinye isebenze isikhathi esiphelele se-T / 6, ekhiqiza i-waveform ephumayo enezinyathelo ezingu-6.Kunesinyathelo se-voltage enguziro phakathi kwamazinga kagesi avumayo noma angalungile wegagasi lesikwele.

Isilinganiso samandla e-inverter singandiswa ngokuqhubekayo.Ukuze wakhe i-inverter enezinga eliphezulu lamandla, ama-inverters angu-2 (ama-inverters ezigaba ezintathu) axhunywe ochungechungeni ukuze athole isilinganiso esiphezulu se-voltage.Ukuze uthole izilinganiso eziphezulu zamanje, ama-inverter angu-2 6-step 3 angaxhunywa.