Thyristor Converter: izici ukusebenza nokuthuthukiswa amathemba

Ucwaningo we izakhiwo Semiconductors uvunyelwe ukudala izinto ezintsha eziye ngenkuthalo esetshenziswa ezifundeni ezihlukahlukene electronic. Kancane kancane kwakukhona amadivayisi ezinamandla ngokwengeziwe ukuthi ukuvumela izifunda ukushintsha kwamandla aphezulu.

Isibonelo esihle salokhu Converter thyristor. Kusukela yaqala ukuba khona, waqala ujabulele udumo okufanele phakathi abaklami. Le divayisi kabanzi ezifundeni ezihlukahlukene kagesi: ukuziqalela nebhethri amashaja, imishini Welding, ama-heater, inverters, rectifiers elawulwa , njll Lena akuyona uhlu oluphelele amadivaysi lapho Converter thyristor isetshenziswa.

Ngokuhamba kwesikhathi, kwakukhona amathuluzi enamandla lapho sekungenzeka ukuba ukulawula ijubane motors kagesi noma bafudumale izitshalo. Aye ngenkuthalo kusetshenziswa ekukhiqizeni, futhi kwezinye izimo ngisho indawo kwendlela eyejwayelekile ngesikhathi "generator-motor" (GD).

Okuthuthukisiwe control izifunda anda kakhulu ukuthembeka kulezi amadivaysi. Inamandla thyristor Converter uyakwazi ukulawula wamanje excitation, noma ifakwe ngqo ihange uchungechunge injini. Nokho, uhlelo lokuqala ukulawula ishayela okhombisa (IFSB) ngokuvamile liziphathe elingafani. Lokhu kungase kuholele, mhlawumbe nje, "roll-over" we inverter kanye okukhipha yezingxenye amandla uhlelo. Kumila kwesakhiwo, futhi, kushiya okuningi okufanele oyifunayo. Ngokuhamba kwesikhathi, lezi zinkinga into yesikhathi esidlule. Kwakukhona okuthembekile zobuchwepheshe ukuthi ngokuphephile elawulwa futhi, uma kunesidingo, ukuvikela ebucayi sindisa thyristor Converter. Kuyadingeka ukuba uqaphele kahle eliphezulu, maintainability ezinhle kanye nosayizi elincane kule divayisi mayelana izinhlelo okunye.

Kodwa ngaphandle ukusebenza okuhle, amadivayisi njenge ifa amaphutha athile maqondana wesifunda amandla:

• Isilinganiso kwamandla esisheshayo futhi likhuthale uma usebenzisa engenzi ngcono ngenxa jikelele ohlangothini emapayipini. Ukuze asindise cos φ kufanele usebenzise compensators kwamandla esisheshayo ngesisekelo the capacitors.

• Emsebenzini walo, thyristor converters ngempela kakhulu engcolisa amandla inethiwekhi ephezulu imvamisa ukuphazamiseka. ekhethekile RC-izifunda zisetshenziselwa ulwe kusimo.

Nge ukusetshenziswa kwamadivaysi eziklanyelwe Ungashintsha ipharamitha ezifana imvamisa we amapayipi. Isetshenziselwa ku esithandweni lokungeniswa, lapho ukwakha isizinda noma ezinye ukufaka kagesi. Lokhu umsebenzi kwenziwa ngokukhethekile le njongo thyristor imvamisa Converter. Ukudalwa kwawo uye ngcono kakhulu ekhona ngesikhathi ubuchwepheshe zokusebenza metal emsebenzini.

Ngokuhamba kwesikhathi, amadivayisi enye ukuthi usebenze ngokuphelele kwezinye izimiso. izikimu athuthukisiwe ngesisekelo ephezulu amandla IGBT-transistors ezisetshenziswa ukulawula izinjini kwamandla ongaphakeme naphakathi. Basuke kancane kancane esikhundleni izinhlelo akusebenzi.