Umphakeli weyunithi ye-frequency converter braking unit ukukhumbuza ukuthi izongena maduze ehlobo, futhi kwisiguquli sefrikhwensi esibaluleke kakhulu ekulawuleni umshini nokulawula isivinini, ilanga elikhipha umkhovu etsheni kanye nesimo sezulu esishisayo amanxeba aqinile okushisa kwe-frequency converter. 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 sikhona, njengokufaka izindlela zokupholisa ngempoqo njengesiphephetha-moya noma amafeni.
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, futhi ubushelelezi ipayipi lomoya.
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:
I-1, Naka lawa maphuzu ngesikhathi sokulungiswa kwesiguquli semvamisa ehlobo: izinga lokushisa elifanele, umswakama, umoya omncane, ongenalo uthuli nokuphazamiseka, futhi uhlanze izingxenye zangaphakathi nezangaphandle zesiguquli sefrikhwensi.
2, 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 iyisici esibaluleke kakhulu nesintekenteke 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.
3, Izinyathelo zokuqapha ukugcinwa kwehlobo nokugcinwa kweziguquli zemvamisa:
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).
4. Ukufakwa kwe-inverter:
(1) Izinga lokushisa liphezulu ehlobo, ngakho-ke kuyadingeka ukuqinisa ukungena komoya kanye nokuchithwa kokushisa kwendawo yokufaka isiguquli semvamisa. Qinisekisa ukuthi umoya ozungezile awunalo uthuli oluningi, ama-asidi, usawoti, amagesi abolayo namagesi aqhumayo.
(2) Ukuze kugcinwe umoya omuhle, ibanga phakathi kwesiguquli semvamisa nezithiyo ezizungezile kufanele libe ngu-≥ 125px nhlangothi zombili futhi ≥ 300px ngaphezulu nangaphansi.
(3) Ukuze kuthuthukiswe umphumela wokupholisa, zonke iziguquli zefrikhwensi kufanele zifakwe zibheke phezulu. Ukuze uvimbele izinto zangaphandle ukuthi zingawi endaweni yesiguquli sefrikhwensi futhi zivimbe ipayipi lomoya, kungcono kakhulu ukufaka isembozo semeshi esivikelayo ngaphezu kokuphuma kwesiguquli sefrikhwensi.
(4) Uma ama-converter ama-frequency amabili noma ngaphezulu efakwe ekhabetheni lokulawula, kufanele afakwe eceleni (ahlelwe ngokuvundlile) ngangokunokwenzeka. Uma ukuhlela okume mpo kudingekile, ukwahlukanisa okuvundlile kufanele kufakwe phakathi kweziguquli zefrikhwensi ezimbili ukuvimbela umoya oshisayo osuka kusiguquli sefrikhwensi ephansi ukuthi ungangeni kusiguquli sefrikhwensi ephezulu.
5. Hlanza njalo ipayipi lefeni nelomoya ngokwendawo esendaweni ukuze uvimbele ukuvaleka; Ikakhulukazi embonini yendwangu, kunenqwaba ye-cotton fluff edinga ukuhlanzwa njalo; Kodwa-ke, kufanele kuqashelwe ukuthi lapho uhlanza i-fan duct, akuvunyelwe ngokuphelele ukusebenza ngogesi futhi ukuphepha kufanele kucatshangelwe.
6. Njalo hlola imishini yokukhipha umoya kanye neyokukhipha ukushisa yesiguquli semvamisa ukuze uqinisekise ukusebenza okuvamile, ikakhulukazi ifeni eyakhelwe ngaphakathi yesiguquli semvamisa. Ngakho-ke unganquma kanjani ukuthi kunenkinga nge-fan?
1) Hlola ukubukeka kwesiphephetha-moya nokuthi intambo yamandla yesiphephetha-moya ivaliwe noma yonakele yini; Hlola ukuthi ama-fan blades aphukile yini;
2) Lalela noma yimuphi umsindo ongajwayelekile ovela kufeni;