Inkqubo emfutshane yemfundo yabaqalayo malunga nokuba kutheni ii-UPS zemodyuli zipholile kwaye zenzekile njani.
Ngokusekelwe kwizakhiwo zabo, ukunikezelwa kwamandla angenakuphazamiseka kumaziko edatha ahlukaniswe ngamaqela amabini amakhulu: i-monoblock kunye nemodyuli. Eyangaphambili yeyohlobo lwe-UPS yendabuko, eyokugqibela isentsha kwaye ihambele phambili.
Uthini umahluko phakathi kwe-monoblock kunye nee-UPS zemodyuli?
Kwi-monoblock unikezelo lwamandla olungaphazamisekiyo, amandla aphumayo anikezelwa yiyunithi enye yamandla. Kwii-UPS zemodyuli, amacandelo aphambili ayenziwa ngendlela yeemodyuli ezihlukeneyo, ezibekwe kwiikhabhinethi ezidibeneyo kwaye zisebenza kunye. Nganye kwezi modyuli ixhotyiswe ngeprosesa yokulawula, ishaja, i-inverter, i-rectifier kwaye imele inxalenye yamandla apheleleyo e-UPS.
Makhe sichaze oku ngomzekelo olula. Ukuba sithatha amandla amabini angenakuphazamiseka - i-monoblock kunye nemodyuli - ngamandla angama-40 kVA, ngoko eyokuqala iya kuba nemodyuli enye yamandla enegunya le-40 kVA, kwaye okwesibini kuya kubandakanya, umzekelo, iimodyuli ezine zamandla kunye nombane. ye-10 kVA nganye.
Iinketho zokukala
Xa usebenzisa ii-UPS ze-monoblock ngokunyuka kweemfuno zamandla, kuyimfuneko ukudibanisa enye iyunithi epheleleyo yamandla afanayo ngokuhambelana nale ekhoyo. Le yinkqubo entsonkothileyo.
Izisombululo zemodyuli zibonelela ngokuguquguquka okukhulu koyilo. Kule meko, imodyuli enye okanye ngaphezulu inokudityaniswa kwiyunithi esele isebenza. Le yinkqubo elula enokugqiba ngexesha elifutshane.
Ukunokwenzeka kokunyuka kwamandla agudileyo
Ukunyuka okugudileyo kwamandla kubalulekile kwinqanaba lokuqala lokusebenza kweziko ledatha. Kuyaqondakala ukuba kwiinyanga zokuqala kuya kulayishwa ngama-30-40%. Kusebenziseka ngakumbi kwaye kunoqoqosho ukusebenzisa izixhobo zombane ezingaphazamisekiyo eziyilelwe ngokukodwa la mandla. Njengoko isiseko somthengi sisanda, umthwalo weziko ledatha uya kwanda, kwaye kunye nesidingo sokunikezelwa kwamandla okongeziweyo kuya kwanda.
Kukulungele ukwandisa amandla e-UPS inyathelo ngesinyathelo kunye neziseko zobugcisa. Xa usebenzisa i-monoblock amandla angenakuphazamiseka, ukunyuka okugudileyo kwamandla akunakwenzeka ngokomgaqo. Ngeemodyuli ze-UPSs oku kulula ukuphumeza.
Ukuthembeka kwe-UPS
Xa sithetha ngokuthembeka, siya kusebenzisa iikhonsepthi ezimbini: ixesha elithetha phakathi kokungaphumeleli (MTBF) kunye nexesha eliqhelekileyo lokulungisa (MTTR).
I-MTBF lixabiso elinokwenzeka. Ixabiso lexesha eliphakathi phakathi kokungaphumeleli lisekelwe kwi-postulate elandelayo: ukuthembeka kwenkqubo kuncipha ngokunyuka kwenani lamacandelo ayo.
Kule parameter, ii-UPS ze-monoblock zinenzuzo. Isizathu silula: iimodyuli ezingaphazamisekiyo zombane zineenxalenye ezininzi kunye neziqhagamshelo, nganye kuzo ithathwa njengento enokwenzeka yokusilela. Ngokufanelekileyo, ngokwethiyori ukubakho kokusilela kuphezulu apha.
Nangona kunjalo, kumandla angenakuphazamiseka asetyenziswa kumaziko edatha, akukona ukungaphumeleli ngokwayo okubalulekileyo, kodwa i-UPS iya kuhlala ixesha elingakanani ingasebenzi. Le parameter imiselwa lixesha lenkqubo yokubuyisela (MTTR).
Apha inzuzo sele ikwicala leebhloko zeemodyuli. Babonisa i-MTTR ephantsi kuba nayiphi na imodyuli inokutshintshwa ngokukhawuleza ngaphandle kokuphazamisa unikezelo lwamandla. Ukwenza oku, kuyimfuneko ukuba le modyuli ibe kwisitokhwe, kwaye ukuchithwa kunye nokufakwa kwayo kunokwenziwa yingcali enye. Enyanisweni, akuthathi ngaphezu kwemizuzu engama-30.
Nge-monoblock unikezelo lwamandla olungaphazamisekiyo imeko inzima kakhulu. Akunakwenzeka ukuzilungisa ngokukhawuleza. Oku kungathatha ukusuka kwiiyure ezininzi ukuya kwiintsuku ezininzi.
Ukumisela ukunyamezela kwempazamo kwenkqubo, ungasebenzisa enye iparameter ngaphezulu - ukufumaneka okanye ngenye indlela ukusebenza. Esi salathi-nkqubela siphezulu, kokukhona ixesha eliphakathi kokungaphumeleli (MTBF) kunye nenkqubo yexesha elisezantsi lokubuyisela (MTTR). Ifomula engqinelanayo yile ilandelayo:
ukufumaneka okuphakathi (ukusebenza) =
Ngokumalunga nee-UPS zemodyuli, imeko ilandelayo: ixabiso labo le-MTBF liphantsi kune-monoblock UPSs, kodwa ngelo xesha banexabiso eliphantsi kakhulu le-MTTR. Ngenxa yoko, ukusebenza kwemodyuli engaphazamisekiyo yonikezelo lwamandla kuphezulu.
Ukusetyenziswa kwamandla
Inkqubo ye-monoblock idinga kakhulu amandla amaninzi ngenxa yokuba iyancipha. Makhe sichaze oku sisebenzisa umzekelo weskimu sokuphinda sisetyenziswe i-N+1. N yimali yomthwalo ofunekayo ukuze kuqhutywe izixhobo zedatha yedatha. Kwimeko yethu, siya kuthatha ilingana ne-90 kVA. Iskimu se-N + 1 sithetha ukuba into enye yokugcina isala ingasetyenziswa kwinkqubo phambi kokusilela.
Xa usebenzisa i-monoblock unikezelo lwamandla olungaphazamisekiyo kunye nombane we-90 kVA, ukuphumeza isiphaluka se-N + 1, kuya kufuneka usebenzise enye iyunithi efanayo. Ngenxa yoko, itotali yokungafuneki kwenkqubo iya kuba yi-90 kVA.
Xa usebenzisa ii-UPS zemodyuli ezinomthamo we-30 kVA, imeko iyahluka. Ngomthwalo ofanayo, ukuphumeza isiphaluka se-N + 1, uya kufuna enye imodyuli yohlobo olufanayo. Ngenxa yoko, ukuchithwa kwenkqubo iyonke akusayi kuba yi-90 kVA, kodwa yi-30 kVA kuphela.
Ngoko ke isiphelo: ukusetyenziswa kombane wemodyuli kunokunciphisa ukusetyenziswa kwamandla kwiziko ledatha lilonke.
U qoqosho
Ukuba uthatha amandla amabini angaphazamisekiyo amandla afanayo, ke i-monoblock enye inexabiso eliphantsi kunemodyuli. Ngesi sizathu, ii-UPS ze-monoblock zihlala zithandwa. Nangona kunjalo, ukwandisa amandla okuvelisa kuya kuphinda kabini iindleko zenkqubo, kuba enye iyunithi efanayo iya kufuneka yongezwe kule ikhoyo. Ukongezelela, kuya kubakho imfuneko yokufakela iipaneli ze-patch kunye neebhodi zokusabalalisa, kunye nokubeka imigca emitsha yekhebula.
Xa usebenzisa iimodyuli ezingaphazamisekiyo zombane, amandla enkqubo anokongezwa kakuhle. Oku kuthetha ukuba kuya kufuneka uchithe imali ekuthengeni inani elinjalo leemodyuli ezaneleyo ukwanelisa iimfuno zobonelelo lwamandla ezikhoyo. Akukho sitokhwe esingeyomfuneko.
isiphelo
Izibonelelo zamandla ezingenakuphazanyiswa ze-Monoblock zinexabiso eliphantsi kwaye kulula ukuyiqwalasela nokusebenza. Ngexesha elifanayo, bandisa ukusetyenziswa kwamandla kwiziko ledatha kwaye kunzima ukukala. Iinkqubo ezinjalo zifanelekile kwaye zisebenza kakuhle apho kufuneka amandla amancinci kwaye ukwanda kwazo kungalindelekanga.
Ii-UPS zeModyuli ziphawulwa ngokulula kokulinganisa, ixesha elincinci lokubuyisela, ukuthembeka okuphezulu kunye nokufumaneka. Iinkqubo ezinjalo zezona zilungele ukwandisa umthamo weziko ledatha kuwo nawuphi na umlinganiselo ngexabiso elincinci.
umthombo: www.habr.com