Abahlinzeki bemishini esekela i-frequency converter bakukhumbuza ukuthi mayelana neziguquli zefrikhwensi, ezibalulekile ekulawuleni okokusebenza kanye nokulawulwa kwesivinini, izinga lokushisa eliphezulu liwukulimala kanzima ekushisiseni kweziguquli zefrikhwensi. Izifundo eziningi nezinqubo zibonise ukuthi izinga lokuhluleka kweziguquli zefrikhwensi likhuphuka ngezinga lokushisa, kuyilapho impilo yabo yesevisi yehla. Uma izinga lokushisa le-ambient likhuphuka ngo-10 ℃, impilo yesevisi yeziguquli zefrikhwensi izokwehliswa ngohhafu. Ngenxa yalesi sizathu, manje ake sihlaziye izimbangela zamaphutha okushisa ngokweqile kuma-converter frequency kanye nezixazululo ezihambisanayo zokuxazulula izinkinga:
1. Izinga lokushisa le-ambient liphezulu kakhulu
Isizathu: Ingaphakathi le-frequency converter liqukethe izingxenye ze-elekthronikhi ezingenakubalwa, ezikhiqiza ukushisa okukhulu ngesikhathi sokusebenza, ikakhulukazi uma i-IGBT isebenza kumafrikhwensi aphezulu, ukushisa okukhiqizwa kuzoba kukhulu nakakhulu. Uma izinga lokushisa le-ambient liphezulu kakhulu, lingase futhi libangele izingxenye zangaphakathi ze-inverter ukuthi zishise kakhulu. Ukuze uvikele isifunda sangaphakathi se-inverter, i-inverter izobika iphutha lokushisa eliphezulu futhi ivale.
I-Countermeasure: Yehlisa izinga lokushisa lendawo lapho isiguquli sefrikhwensi sitholakala khona, njengokusebenzisa okokusebenza okupholisa umoya kwe-Andasi, okunamandla amakhulu okupholisa nomthelela obalulekile wokupholisa.
2. Ukungena komoya okungalungile kwe-frequency converter
Isizathu: Uma i-air duct yesiguquli se-frequency ngokwayo ivinjiwe noma i-air duct yekhabhinethi yokulawula ivinjiwe, izothinta ukuchithwa kokushisa kwangaphakathi kwesiguquli semvamisa, okuholela ku-alamu yokushisa ngokweqile yesiguquli semvamisa.
I-Countermeasure: Hlola njalo isiguquli sefrikhwensi, susa udoti emhubheni wayo womoya, bushelelezi ipayipi lomoya, kodwa umphumela wokupholisa awumuhle.
3. Ifeni ibambekile noma ilimele
Isizathu: Uma isiguquli se-frequency fan siphukile, inani elikhulu lokushisa linqwabelana ngaphakathi kwesiguquli sefrikhwensi futhi alikwazi ukuhlakazeka.
Kulokhu, kungabonakala ukuthi ukugcinwa nokugcinwa kwesiguquli semvamisa kubaluleke kakhulu. Ngakho-ke, singalehlisa kanjani izinga lokuhluleka, senze isiguquli semvamisa sisinde ngokuphepha ehlobo, futhi sinciphise ukulahlekelwa kwamakhasimende? Ngakho-ke, izici ezilandelayo zizokwethulwa kafushane manje:
Ehlobo, naka amaphuzu alandelayo lapho ulungisa futhi ugcina iziguquli zemvamisa:
Izinga lokushisa elifanele, umswakamo, ukungena komoya, alunathuli futhi alunaziphazamiso, hlanza ingaphakathi nangaphandle lesiguquli samaza.
Yiziphi izici eziyinhloko ezithinta ngokuqondile ukuchithwa kokushisa kwesiguquli semvamisa?
1. Ukuvikelwa kokusebenza kwabalandeli, umlandeli owakhelwe ngaphakathi we-converter frequency kuyindlela eyinhloko yokukhipha ukushisa ngaphakathi kwebhokisi, okuzoqinisekisa ukusebenza okuvamile kwesifunda sokulawula. Ngakho-ke, uma i-fan ingasebenzi kahle, ukulungiswa kufanele kwenziwe ngokushesha.
2. Ukuvikelwa kokushisa okweqile kwepuleti le-inverter module yokushisa ukushisa. Imojula ye-inverter iyingxenye eyinhloko eyenza ukushisa ngaphakathi kwesiguquli se-frequency futhi iphinde ibe yingxenye ebalulekile nebuthakathaka ku-converter frequency. Ngakho-ke, isiguquli ngasinye se-frequency sifakwe amadivayisi okuvikela ukushisa ngokweqile ebhodini lokukhipha ukushisa.
3. I-inlet kanye ne-outlet ye-cooling air duct akumele ivinjwe, futhi izinga lokushisa le-ambient lingase libe ngaphezu kwevelu evumelekile yesiguquli sefrikhwensi. Izixazululo ezihlosiwe neziphakamiso zokuthuthukisa zihlongoziwe, ezinenani elithile lereferensi ekusetshenzisweni kweziguquli zemvamisa kubunjiniyela obusebenzayo.
4. Kufanele kuqashelwe inkinga yokuphazamiseka kwesiguquli sefrikhwensi ebhodini lokulawula le-microcomputer. Izinga lenqubo yebhodi yokulawula yamakhompiyutha amancane eliklanywe umsebenzisi liphansi futhi alihambisani nezindinganiso zamazwe ngamazwe ze-EMC. Ngemva kokusebenzisa isiguquli semvamisa, ukuphazamiseka okwenziwayo nokukhishwa kwemisebe ngokuvamile kuholela ekusebenzeni okungavamile kwesistimu yokulawula. Kufanele kuthathwe izinyathelo ezidingekayo.
Imithetho yokunakekelwa nokugcinwa kweziguquli zefrikhwensi ehlobo:
1. Hlola isimo sokusebenza sesiguquli sefrikhwensi, ukuthi i-voltage kanye namanani amanje phakathi nokusebenza angaphakathi kwebanga elijwayelekile.
2. Qapha ngokucophelela futhi urekhode izinga lokushisa le-ambient legumbi lokuguqula imvamisa, ngokuvamile eliphakathi kuka -10 ℃ no-40 ℃. Ukukhuphuka kwezinga lokushisa kwesiguquli esishintshayo akukwazi ukudlula i-130 ℃.
3. Gwema ukukhanya kwelanga okuqondile, izindawo ezimanzi, nezindawo ezinamaconsi amanzi. Ihlobo yisikhathi semvula, ngakho-ke kubalulekile ukuvimbela amanzi emvula ukuthi angangeni ngaphakathi kwe-inverter (njengamanzi emvula angena nge-tailwind outlet).
Amadivayisi amane engeziwe empendulo yamandla:
Ingakwazi ukuvala ngokuphelele izindawo zokuphikisa amandla aphezulu futhi inciphise kakhulu izinga lokushisa lendawo yokukhiqiza; Futhi izinga lokonga amandla lifinyelela ku-30%, linciphisa kakhulu ukusetshenziswa kukagesi ezinqubweni zokukhiqiza izimboni; Ngesikhathi esifanayo ukwehlisa ugesi omile futhi kunwetshwe ngempumelelo impilo yesevisi yezinye izinto zokusebenza zikagesi.