Kweziphi iindawo apho unikezelo lwamandla e-UPS lusetyenziswa ngokubanzi?
Izixhobo zenkqubo yonikezelo lwamandla e-UPS luhlobo lokuqala lwezixhobo zolwazi, ezisetyenziswa ikakhulu kukhuseleko lweenkqubo zolwazi lwekhompyuter, iinkqubo zonxibelelwano, amaziko othungelwano lwedatha yeselula, njl. ikhonkco, ikhonkco loshishino lwe-aerospace, njl. Njengesixhobo esibalulekileyo se-peripheral yenkqubo yolwazi lwekhompyutha, inkqubo yonxibelelwano kunye neziko lothungelwano lwedatha, unikezelo lwamandla olungaphazamisekiyo ludlala indima ebaluleke kakhulu ekukhuseleni idatha yekhompyutha, ukuqinisekisa ukuzinza kwamandla ombane ombane wegridi kunye nokuphindaphinda, ukuphucula i umgangatho wegridi yamandla, kunye nokuthintela ukusilela kombane ngoko nangoko kunye nokusilela kwamandla okungalindelekanga ekubangeleni ingozi kubasebenzisi.indima.
Uhlobo lwesibini lwamandla ombane we-UPS izixhobo zenkqubo yonikezelo lwamandla lusetyenziswa kakhulu kwimimandla yamandla ombane, intsimbi, isinyithi, isinyithi, amalahle, i-petrochemical, ulwakhiwo, amayeza, iimoto, ukutya, umkhosi kunye namanye amasimi kushishino lwezixhobo zamandla ombane. , Ukuqinisekisa ukuba zonke izixhobo zenkqubo ye-automation yamandla e-automation, ekude Ukuthembeka konikezelo lwamandla ombane oluzenzekelayo kwi-AC kunye ne-DC engaphazamisekiyo yonikezelo lwamandla njengezixhobo zesigqeba esilawulayo, uqhagamshelwano lwe-high-voltage circuit breaker, ukukhuselwa kwe-relay, izixhobo ezizenzekelayo, kunye nezixhobo zomqondiso.Unikezelo lwamandla olungaphazamisekiyo lwe-industrial luyimveliso ephezulu phakathi konikezelo lwamandla olungaphazamisekiyo.Ibandakanya itekhnoloji ye-elektroniki yamandla aphezulu (mhlawumbi inqanaba le-megawatt) ukuguqulwa kwamandla, inkqubo yolawulo lwedijithali, itekhnoloji ye-AC series redundancy, iteknoloji yokucinezela i-pulse yangoku, iteknoloji yokuvelisa imveliso yamandla aphezulu, njl. Ngokucacileyo, iinkampani zombane eziqhelekileyo azikwazi ukungena. eli shishini.Kuphela iinkampani ezinobuchwephesha bombane obunamandla aphezulu kunye nothotho lophuhliso lwemveliso, imveliso kunye nezakhono zenkonzo, kwaye ziqokelele imveliso yeshishini ehambelanayo kunye namava esicelo, unokwenza umsebenzi olungileyo kuyilo lweenkqubo zonikezelo lwamandla ezingenakuphazanyiswa , Ukuvelisa kunye nokuthengiswa kwemarike. iinkonzo.
Okwangoku, kukho izikimu ezine ze-UPS enkulu yegalelo le-harmonic yoxinzelelo lwangoku
isicwangciso 1.
I-6-pulse UPS + esebenzayo i-high-order harmonic filter, i-input current high-order harmonics <5% (umthwalo olinganisiweyo), i-input factor factor 0.95.Eli lungiselelo lenza isalathisi segalelo sihle kakhulu, kodwa iteknoloji yayo ikhulile, kwaye kukho iingxaki ezifana nembuyekezo yephutha, ukuhlawula ngokugqithiseleyo, njl., Okubangela ukukhubeka kobuxoki okanye umonakalo wokutshintsha okungundoqo.Iziphene zeteknoloji yokucoca i-harmonic esebenzayo ye-THM ziqhelekileyo
a) Kukho ingxaki "yembuyekezo yobuxoki": kuba isantya sokuphendula imbuyekezo sidlula i-40ms, kukho ingozi ekhuselekileyo yokhuseleko "yembuyekezo yobuxoki".Ngokomzekelo, xa usenza imisebenzi yokusika / ukuthuma kwigalelo lombane, okanye ukwenza imisebenzi enzima yokusika / ukuthuma emacaleni aphezulu nangaphantsi kwegalelo le-UPS, kulula ukubangela "imbuyekezo yokuphambuka".Ukukhanya kwavela, kubangela "utshintsho ngokukhawuleza" kwi-ups power input harmonic current.Xa inzulu kakhulu, iya kubangela "ukukhubeka okungeyonyani" kokutshintsha kwegalelo le-UPS.
b) Ukuthembeka okuphantsi: Ukunikezelwa kwamandla angenakuphazamiseka kunye ne-6 pulses + filter esebenzayo, izinga lokungaphumeleli liphezulu, kuba ityhubhu yamandla okuqhuba i-rectifier yayo kunye nomguquleli ityhubhu ye-IGBT.Ngokuchasene noko, kwi-12-pulse + passive filter UPS, ii-inductors ezithembeke kakhulu kunye ne-capacitors zisetyenziswa kwiifilitha zayo.
c) Ukunciphisa ukusebenza kwenkqubo kunye nokwandisa iindleko zokusebenza: ukusebenza kakuhle kwenkqubo yezihlungi ezisebenzayo malunga ne-93%.Kwi-400KVA UPS uxhulumaniso oluhambelanayo, phantsi kweemeko zokutshaja ngokupheleleyo kunye ne-33% igalelo lembuyekezo ye-harmonic ye-high-order yangoku, ukuba umrhumo wombane uhlawulwe kwi-0.8 yuan nge-KW * hr =, iindleko zokusebenza ezihlawulwe kunyaka omnye zimi ngolu hlobo lulandelayo.
400KVA*0.07/3=9.3KVA;ukusetyenziswa kombane ngonyaka yi-65407KW.Hr, kwaye umrhumo owonyukileyo wombane yi-65407X0.8 yuan=52,000 yuan.
d) Ukongeza isihluzo esisebenzayo kubiza kakhulu: igalelo langoku lecebo lokucoca elisebenzayo 200 kVA UPS yi 303 amps;
Uqikelelo lwangoku lweHarmonic: 0.33*303A=100A,
Ukuba umxholo wangoku we-harmonic wegalelo ungaphantsi kwe-5%, umbane wembuyekezo kufuneka ubalwe ubuncinci: 100A;
Uqwalaselo olululo: Iseti ye-100 amp yezihluzi ezisebenzayo.Ngokoqikelelo lwangoku lwe-1500-2000 yuan kwi-ampere, ixabiso lilonke liya kunyuka nge-150,000-200,000 ye-yuan, kwaye iindleko ze-6-pulse 200KVA UPS ziya kunyuka malunga ne-60% -80%.
Imeko yesi-2
Yamkela i-6-pulse unikezelo lwamandla olungaphazamisekiyo + i-5th ye-harmonic filter.Ukuba isilungisi sombane esingaphazamisekiyo sisigaba esithathu esilawulwa ngokupheleleyo kwibhulorho-uhlobo lwe-6-pulse rectifier, iharmonics eveliswa yi-akhawunti yokuhlaziya phantse i-25-33% yazo zonke iiharmonics, kwaye emva kokongeza isihluzo se-5 se-harmonic, i-harmonics yehliswe ukuya ngaphantsi kwe-10%.Igalelo lamandla li-0.9, elinokunciphisa ngokuyinxenye umonakalo we-harmonic yangoku kwigridi yamandla.Ngolu lungelelwaniso, i-harmonics yangoku yegalelo lisenkulu kakhulu, kwaye umlinganiselo womthamo we-generator kufuneka ube mkhulu kune-1: 2, kwaye kukho ingozi efihliweyo yokunyuka okungaqhelekanga kwimveliso ye-generator.
Ukhetho lwesi-3
Iskimu somgunyathi se-12-pulse sisebenzisa isiguquli sokutshintsha kwesigaba + 6-i-pulse rectifier yenziwe ngamanqanaba amabini e-6-pulse rectifier:
a) Isilungisi somgangatho we-6-pulse
b) Isiguquli esitshintshiweyo se-30-degree + 6-pulse rectifier
I-UPS elungisiweyo yomgunyathi i-12-pulse rectifier.Phezulu, i-harmonics yegalelo elipheleleyo langoku libonakala liyi-10%.Olu qwalaselo lunenqaku elinye lokusilela.Xa unikezelo lwamandla olungaphazamisekiyo lusilela, igalelo le-harmonic current yenkqubo liyanda kakhulu, libeka emngciphekweni ukhuseleko lwenkqubo yonikezelo lwamandla.
Izinto ezingeloncedo eziphambili:
1).Ukusika iikona kunye nezixhobo zesixhobo sokuqala, isethi epheleleyo yezixhobo ayikho.
2).Ukuba i-rectifier ye-UPS iyahluleka, iya kuguqulwa ibe yi-6-pulse UPS, kwaye umxholo we-harmonic uya kwanda ngokukhawuleza.
3).Kwaye ulawulo lwebhasi ye-DC yinkqubo yokulawula i-loop-loop.Igalelo lokwabelana ngoku alinako ukuba lihle kakhulu.Umbane we-harmonic kumthwalo okhanyayo uya kuba mkhulu kakhulu.
4).Ukwandiswa kwenkqubo kuya kuba nzima kakhulu
5).I-transformer ye-phase-shifting efakiweyo ayiyona imveliso yokuqala, kwaye umdlalo kunye nenkqubo yokuqala ayiyi kuba yinto enhle kakhulu.
6).Umgangatho womgangatho uya kuba mkhulu
7).Ukusebenza yi-12-15%, engafanelekanga njenge-12-pulse UPS.
Ukhetho lwesi-4
Yamkela i-12-pulse unikezelo lwamandla olungaphazamisekiyo + i-11-order ye-harmonic filter.Ukuba isilungisi sombane esingaphazamisekiyo sisigaba sesithathu esilawulwa ngokupheleleyo kwibhulorho-uhlobo lwe-12-pulse rectifier, emva kokongeza i-11th-order harmonic filter, inokwehliswa ibe ngaphantsi kwe-4.5%, enokuphelisa ngokupheleleyo umonakalo we-harmonic. isiqulatho sangoku kwigridi yamandla, kunye nomlinganiselo wexabiso Isihluzo semvelaphi sisezantsi kakhulu.
I-12-pulse UPS + 11th filter ye-harmonic iyamkelwa, i-harmonic yangoku ye-harmonic i-4.5% (umthwalo olinganisiweyo), kunye ne-input factor factor yi-0.95.Olu hlobo loqwalaselo luyisisombululo esipheleleyo nesithembekileyo kwishishini lonikezelo lwamandla e-UPS, kwaye lifuna umthamo we-generator we-1: 1.4.
Ngokusekelwe kolu hlalutyo olungentla, iskimu sokuphelisa i-harmonic ye-12-pulse rectifier + i-11th-order ye-harmonic filter kunye nokusebenza kakuhle, ukuthembeka okuphezulu, ukusebenza okuzinzile kunye nokuthembekileyo, kunye nokusebenza kakuhle kweendleko kunconywa ekusebenzeni.
Ixesha lokuposa: Apr-13-2023