Indlela i-OTIS OVF20 Elevator Inverter esebenza ngayo

I-OTIS OVF20 inverter idlala indima ebalulekile ezinhlelweni ze-elevator zanamuhla, iqinisekisa ukusebenza okubushelelezi nokuphephile. Umsebenzi wayo oyinhloko ukuguqula amandla e-AC anikezwa ku-elevator abe umphumela we-AC olawulwayo, oguquguqukayo oqhuba imoto kahle.

Inqubo iqala ngamandla e-AC angenayo, kungaba yi-380V noma i-220V, okuqala aguqulwa abe yi-DC voltage yisistimu yokulungisa ngaphakathi kwe-inverter. Le voltage ye-DC ibe isiqiniswa ngama-capacitor kusekethe ye-DC ukuze inikeze ukuphakelwa okuzinzile. I-inverter bese isebenzisa uhlelo lwe-pulse-width modulation (PWM) ukuguqula le DC elungisiwe ibe yi-AC voltage ngemvamisa elungisekayo, kuqedwe inqubo ye-inverter.

Ngaphakathi kwe-OVF20, ingxenye yokuqala ebonakalayo ngemva kokuvula isembozo sangaphambili yi-Motion Control Board II (MCBII). Njengoba igama layo lisho, leli bhodi linesibopho sokulawula uhlelo lokunyakaza lwe-lifti. Lisebenza njengesixhumi sazo zonke izimpawu zokufaka nezokukhipha ze-OVF20 futhi licubungula lezi zimpawu ukuqinisekisa ukusebenza okunembile.

Uhlelo lokulawula i-lifti—njenge-LBII, i-LCBII, noma amanye amabhodi okulawula—luthumela imiyalo yesivinini ku-MCBII. I-MCBII icubungula le miyalo kanye nezimpawu ezengeziwe ze-hoistway, kufaka phakathi amasekethe okuphepha. Bese ithumela izimpawu zokulawula ku-Power Drive Board (PDB), ephatha ama-transistors anamandla aphezulu ngaphakathi kwe-inverter ukuze enze ukuguqulwa kwe-AC kwangempela. Empeleni, i-PDB isebenzisa ukushintsha kwamandla kwe-inverter ngaphansi kwesiqondiso se-MCBII.

Ukuze isebenze kahle, i-MCBII ithola impendulo evela ku-sensor yesivinini se-PVT. Ngokuqhathanisa ijubane langempela le-elevator nejubane eliyalelwe, i-MCBII ilungisa ukuphuma kwenjini ukuze igcine ukunyakaza okubushelelezi nokuthembekile. Imigqa emibili eyengeziwe evela ku-inverter inikeza impendulo yamanje ku-MCBII njengengxenye yesistimu yokuvikela yamanje yangaphakathi ye-inverter. Uma ugesi ophumayo udlula inani elilinganisiwe, i-inverter izoqala ukuvala okuvikelayo.

Okokugcina, i-OVF20 ifaka uhlelo lokumelana nokubhuleka. Lo mphikisi usetshenziselwa ukunciphisa ijubane ngokuphephile, uguqule amandla amaningi abe ukushisa ukuqinisekisa ukuma okulawulwayo nokuphephile.

Sekukonke, i-OTIS OVF20 inverter ihlanganisa ukulawula ukunyakaza okunembile, impendulo yesikhathi sangempela, kanye nezindlela zokuphepha ukuze kulethwe ukusebenza okuthembekile kwama-lifti anamuhla.

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