Ukuhlaziywa Kwembangela Yokushiswa Kwe-Thyristor

Ngesikhathi sokusetshenziswa kwesithando somlilo esiphakathi, ukuvutha kwe-thyristor kuvame ukuvela, okuvame ukucasula izisebenzi zesondlo zesithando somlilo esiphakathi, futhi ngezinye izikhathi azikwazi ukuzixazulula.Ngokuya ngamarekhodi okugcinwa kwesithando somlilo esiphakathi iminyaka eminingi, idatha ingabonwa ngezansi ukuze isetshenziswe ngabasebenzi bokunakekela.

1.Ijazi lokupholisa lamanzi le-inverter thyristor linqanyuliwe noma umphumela wokupholisa uncishisiwe, ngakho-ke umkhono wokupholisa amanzi udinga ukushintshwa.Ngezinye izikhathi kwanele ukugcina ubuningi bamanzi nokucindezela kwejazi lokupholisa amanzi, kodwa ngokuvamile ngenxa yenkinga yekhwalithi yamanzi, ungqimba lwesikali lunamathele odongeni lwejazi lokupholisa amanzi.Ngenxa yokuthi isikali siwuhlobo lokuhluka kwe-thermal conductivity nakuba kunokugeleza okwanele kokugeleza kwamanzi, umphumela wokushisa ukushisa uyancipha kakhulu ngenxa yokuhlukaniswa kwesilinganiso.Indlela yokwahlulela ukuthi amandla asebenza ngamandla angamaminithi ayishumi aphansi kunalawo wenani lokuchichima.Khona-ke amandla ayeka ngokushesha, futhi umnyombo wesici esilawulwa yi-silicon wathinta ngokushesha ngesandla ngemva kokuma.Uma kushisa, iphutha libangelwa yilesi sizathu.

2.Ukuxhumana phakathi kwe-groove ne-conductor kubi futhi kuphukile.Hlola i-slot bese uxhuma izintambo, futhi uziphathe ngokuvumelana nesimo sangempela.Lapho ucingo lokuxhuma isiteshi lunesimo sokubopha sokuxhumana okubi noma umugqa ophukile, amandla akhuphuka abe nenani elithile azokhiqiza into yomlilo, ethinta umsebenzi ojwayelekile wemishini, okuholela ekuvikelweni kwemishini.Kwesinye isikhathi i-overvoltage yesikhashana ikhiqizwa kuzo zombili iziphetho ze-thyristor ngenxa yesondo.Ukuvikelwa kwe-overvoltage sekwephuzile kakhulu, kuzophazamisa isici se-thynstor.Overvoltage kanye overcurrent ngokuvamile kwenzeka ngesikhathi esifanayo.

3.I-voltage ye-burr esheshayo ye-thyristor iphezulu kakhulu uma i-thyristor ihlehliswa.Kumjikelezo oyinhloko we-medium frequency power supply, i-voltage ye-burr yesigaba esibuyela emuva imuncwa ukumelana nokumuncwa.Uma isekethe ye-resistor ne-capacitor ivuliwe kusekethe yokumuncwa izobangela i-voltage ye-reverse burr esheshayo iphakame kakhulu futhi kushise i-thyristor.Esimeni sokwehluleka kwamandla, sisebenzisa ithebula le-WAN Xiu ukukala i-absorpti ekuphikisweni kanye nekhono le-capacitor yokumunca, ukuze sinqume ukuthi ingabe likhona yini iphutha kusekethi yokumunca amandla okumelana.

4.Umthwalo unciphisa ukushiswa kwe-grou nd: ukufakwa kwe-loop yomthwalo kuncipha, okubangela ukuthi umthwalo uvuthe phakathi komhlaba, kuphazamise isikhathi sokuqalisa se-pulse noma ukwakha i-voltage ephezulu kuzo zombili iziphetho ze-thyristor kanye ukushisa isici se-thyristor.

5.Iphutha lesekhethi ye-Pulse trigger: Uma i-trigger pulse ilahleka ngokuzumayo lapho idivayisi isebenza, izodala isekethe evulekile ye-inverter futhi ikhiqize i-voltage ephezulu ekugcineni kokuphumayo kokunikezwa kwamandla okuvama okumaphakathi futhi kushise isici se-thyristor.Lolu hlobo lwephutha ngokuvamile ukwakheka kwe-inverter pulse kanye nephutha lesekethe yokuphumayo.Ingahlolwa nge-oscilloscope, futhi ingase ibe ukuxhumana okubi kwentambo eholayo ye-inverter, futhi inganyakazisa ijoyinti yocingo ngesandla futhi ithole indawo enephutha.

I-6.Imishini ivula lapho umthwalo usebenza: Uma idivayisi isebenza ngamandla amakhulu, uma umthwalo ongazelelwe usendaweni evulekile, isici esilawulwa yi-silicon sizoshiswa ekupheleni kokukhipha.

I-7. Umthwalo ujikeleza kancane lapho okokusebenza kusebenza: Uma okokusebenza kusebenza ngamandla amakhulu, uma umthwalo ufinyezwa ngokuzumayo, uzoba nomthelela omkhulu wamanje wesifunda esifushane ku-SCR: futhi uma isenzo sokuvikela esingaphezulu kwamanje ayikwazi ukuvikelwa, izakhi ze-SCR zizoshiswa.

8.Ukuvikela ukwehluleka kohlelo (ukwehluleka kokuvikela): Ukuphepha kwe-SCR kuncike kakhulu ohlelweni lokuvikela.Uma kukhona ukwehluleka ku-protective)kuhlelo, okokusebenza kukhona okungavamile emsebenzini wawo, okuzoletha inkinga ekuphepheni kwe-SCR.Ngakho-ke, kubalulekile ukuhlola uhlelo lokuvikela lapho i-SCR isha.

Ukwehluleka kwesistimu yokupholisa ye-9.SCR: I-Thyristor ishisa kakhulu emsebenzini futhi idinga ukupholisa ukuze iqinisekise ukusebenza kwayo okuvamile.Ngokuvamile, kunezindlela ezimbili zokupholisa isilungisi esilawulwa yi-silicon: eyodwa ukupholisa amanzi kanti enye ukupholisa umoya.Ukupholisa amanzi kusetshenziswa kakhulu, futhi ukupholisa komoya kusetshenziswa kuphela ukunikezwa kwamandla angaphansi kuka-100KW.Ngokuvamile, okokusebenza kwefrikhwensi emaphakathi okupholisa amanzi kufakwe isekethe yokuvikela umfutho wamanzi, kodwa ngokuyisisekelo kuwukuvikela komthelela ophelele.Uma amanzi athile evinjiwe, awakwazi ukuvikeleka.

10.I-reactor isenkingeni: Ukuthungela kwangaphakathi kwe-reactor kubangela ukuthi uhlangothi lwe-cur nt lohlangothi lwe-verier ukuthi luphazamiseke.