Amadivayisi Amandla E-elekthronikhi Okushisa Okungeniswayo

Ukushisa kwe-induction kusetshenziselwa ikakhulukazi ukuncibilikisa insimbi, ukugcinwa kokushisa, ukuthungatha, ukushisela, ukucisha, ukushisa, i-diathermy, ukuhlanzwa kwensimbi ewuketshezi, ukwelashwa kokushisa, ukugoba kwamapayipi, nokukhula kwekristalu.Ukunikezwa kwamandla okungeniswa kuhlanganisa isekethe yokulungisa kabusha, isekethe ye-inverter, isifunda sokulayisha, isifunda sokulawula nokuvikela.

Ubuchwepheshe bokunikezwa kwamandla okuvama okumaphakathi kokushisisa okungeniswayo kuwubuchwepheshe obulungisa imvamisa yamandla amanje (50Hz) ukuze aqondise amandla bese iguqulela kumafrikhwensi aphakathi nendawo (400Hz~200kHz) ngamadivaysi esemiconductor yamandla afana ne-thyristor, MOSFET noma i-IGBT.Ubuchwepheshe busebenza ezindleleni zokulawula eziguquguqukayo, amandla amakhulu okukhiphayo, nokusebenza kahle okuphezulu kuneyunithi, futhi kulula ukushintsha imvamisa ngokuya ngesidingo sokushisa.

Isilungisisi sezinto zokuphakelwa kwamandla amancane naphakathi samukela ukulungiswa kwe-thyristor kwezigaba ezintathu.Emishinini yamandla aphezulu, ukulungiswa kwe-12-pulse thyristor kuzosetshenziswa ukuze kuthuthukiswe izinga lamandla okunikezwa kwamandla nokunciphisa igridi-side harmonic current.Iyunithi yamandla e-inverter yakhiwe nge-high-voltage high-current fast switch thyristor parallel bese uchungechunge luxhunywe ukuze kubonakale ukuphuma kwamandla aphezulu.

Isifunda se-inverter ne-resonant singahlukaniswa ngezinhlobo ezimbili ngokuya ngezakhiwo zesakhiwo: 1) uhlobo oluhambisanayo lwe-resonant, 2) uhlobo lochungechunge lwe-resonant.

Uhlobo oluhambisanayo lwe-resonant: i-high-voltage high-current water-cooled thyristor (SCR) isetshenziselwa ukwakha iyunithi yamandla ye-inverter yohlobo lwamanje, futhi ukuphuma kwamandla aphezulu kubonakala ngokubekwa okuphezulu kwama-thyristors.Isekethe ye-resonant ngokuvamile isebenzisa ukwakheka okuphelele kwe-resonance parallel, iphinde ikhethe imodi ye-double-voltage noma i-transformer ukukhulisa i-voltage ku-inductor ngokuya ngezidingo ezahlukahlukene, ezisetshenziswa kakhulu kwinqubo yokushisa yokushisa.

Uhlobo lwe-resonant yochungechunge: i-high-voltage high-current water-cooled thyristor (SCR) kanye ne-diode esheshayo isetshenziselwa ukwakha iyunithi yamandla ohlobo lwe-voltage inverter, futhi ukuphuma kwamandla aphezulu kubonakala ngokubekwa okuphezulu kwama-thyristors.Isifunda se-resonance sisebenzisa uchungechunge lwesakhiwo se-resonance, futhi i-transformer yamukelwa ukuze ihambisane nesidingo somthwalo.Ngaphezu kwezinzuzo zesici samandla aphezulu ku-Grid-side, ububanzi bokulungiswa kwamandla, ukusebenza kahle kokushisa okuphezulu kanye nezinga eliphezulu lempumelelo yokuqalisa, isisetshenziswa kabanzi eminyakeni yamanje futhi isetshenziswa kakhulu ekuncibilikeni.

Ngemuva kokuthuthukiswa kwenqubo yokukhiqiza, i-Runau ekhiqizwe i-fast switch thyristor isebenzisa imisebe ye-neutron nezinye izinqubo ukuze iqhubeke ifinyeze isikhathi sokuvala futhi umthamo wamandla uyathuthukiswa ngenxa yalokho.

I-induction heat medium frequency power supply isebenzisa i-thyristor njengoba idivayisi yamandla eyinhloko imboze zonke izinkambu ngefrikhwensi yokusebenza engaphansi kuka-8kHz.Umthamo wamandla ophumayo uhlukaniswe waba ngu-50, 160, 250, 500, 1000, 2000, 2500, 3000kW, 5000KW, 10000KW imvamisa yokusebenza ngu-200Hz, 400Hz, 1kHz, 2.4kHz, 2.4kHz, 2.4kHzAmathani ayi-10, amathani ayi-12, amathani angama-20 wokuncibilika kwensimbi nokubhuka okushisayo, imishini yamandla eyinhloko ukunikezwa kwamandla okuvama okuphakathi.Manje amandla amakhulu okukhipha amandla afika ku-20000KW we-40Ton.Futhi i-thyristor iyisihluthulelo sokuguqulwa kwamandla & inversion ingxenye okufanele isetshenziswe.

Umkhiqizo Ojwayelekile