Ulwazi olusisiseko lwabasebenzisi
Inkampani eqengqelekayo yentsimbi yenza amatyathanga entsimbi angqingqwa ayi-0.5mm.Inkampani inemizila ye-4 yokuvelisa, kuquka i-1 ye-650 yensimbi yensimbi kunye ne-3 ye-450 kumatshini wensimbi.Amandla okuqhuba aqhutywa ngokuyinxenye yi-DC brushless motors, kunye neeseti ze-3 ze-1250KVA i-transformers kunye ne-630KVA..Umzobo wenkqubo yonikezelo lwamandla ngolu hlobo lulandelayo:
Eyona datha yokusebenza
I-avareji yombane we-1250KVA transformer yi-PF=0.62, ukusebenza ngoku kwe-1960A kunye ne-630KVA i-transformer yi-700KVA, i-avareji yamandla e-PF=0.62, ukusebenza ngoku yi-1050A, zonke ii-transformers zinzima kakhulu, kunye ne-pulse yangoku. ngamaxesha ama-5, umlinganiselo wokutshintsha umthamo wangoku yi-18.5%.
Uhlalutyo lwemeko yeNkqubo yaMandla
Umthwalo oyintloko we-DC brushless motor ballast yi-6 single-pulse ballasts.Isixhobo se-ballast sivelisa inani elikhulu le-pulse yangoku kwi-AC, AC, kunye nokusebenza kwe-DC.Ngumthombo wangoku we-pulse.Xa ifakwe kwigridi yamandla, i-harmonic yangoku I-voltage ye-pulse yangoku esebenzayo ibangelwa ukunyanzeliswa kweempawu zothungelwano lwamandla, okukhokelela ekuphumeni kwe-voltage yokusebenza kunye nekhoyo, ebeka emngciphekweni umgangatho kunye nokhuseleko lokusebenza. yonikezelo lwamandla okutshintsha, kwandisa ilahleko yomgca kunye nokutenxa kumbane osebenzayo, kwaye kunempembelelo embi kuthungelwano lwamandla kunye nezixhobo zombane ngokwazo.Ke ngoko, imbuyekezo ye-brushless motor ye-DC kufuneka isebenzise imbuyekezo yamandla ephantsi-voltage esebenzayo ye-pulse yangoku yokucinezela isihluzo ukuze ubuyekeze umthwalo osebenzayo, uphucule into yamandla, kwaye akayi kohlwaywa ngamandla asebenzayo ukwandisa imveliso ye-transformer. .
Hlunga isicwangciso sonyango lwembuyekezo yamandla asebenzayo
Iinjongo zolawulo
Uyilo lwezixhobo zembuyekezo zokucoca luhlangabezana neemfuno zokucinezelwa kwe-harmonic kunye nolawulo loxinzelelo lwamandla asebenzayo.
Ngaphantsi kwenkqubo yokusebenza ye-0.4KV, emva kokuba isixhobo sembuyekezo yokucoca sifakwe ekusebenzeni, i-pulse current icinezelwe, kwaye i-avareji yamandla yenyanga ijikeleze i-0.92.
I-High-order harmonic resonance, i-resonance overvoltage, kunye ne-overcurrent ebangelwa ukudibanisa kwi-filter imbuyekezo yesiphaluka yesebe ayiyi kwenzeka.
Uyilo lulandela iMigangatho
Umgangatho wamandla I-harmonics yegridi kawonkewonke GB/T14519-1993
Umgangatho wamandla Ukuguquguquka kweVoltage kunye ne-flicker GB12326-2000
Iimeko zobugcisa ngokubanzi zesixhobo sembuyekezo yamandla asezantsi-voltage asebenzayo GB/T 15576-1995
Isixhobo sembuyekezo yamandla asezantsi-voltage esebenzayo JB/T 7115-1993
Imbuyekezo yamandla asebenzayo iimeko zobuchwepheshe JB/T9663-1999 "I-low-voltage reactive power isilawuli sembuyekezo ezenzekelayo" ukusuka kwi-high-order harmonic yangoku umda wexabiso lombane ophantsi kunye nezixhobo zombane GB/T17625.7-1998
Amagama e-Electrotechnical Ii-capacitors zamandla GB/T 2900.16-1996
I-low voltage shunt capacitor GB/T 3983.1-1989
Reactor GB10229-88
I-Reactor IEC 289-88
I-low-voltage esebenzayo yembuyekezo yolawulo lolawulo lweemeko zobugcisa DL/T597-1996
Umgangatho ophantsi we-voltage yokukhusela indawo yombane ye-GB5013.1-1997
I-low-voltage epheleleyo yokutshintshela kunye nezixhobo zokulawula i-GB7251.1-1997
Iingcamango zoyilo
Ngokwemeko ethile yenkampani, isicwangciso sembuyekezo yamandla asebenzayo e-DC brushless motor filter iyilwe ngokuqwalasela amandla omthwalo kunye noxinzelelo lwangoku lwe-pulse, kunye neseti yembuyekezo yamandla asezantsi-voltage esebenzayo ifakwe kwi-0.4kV ezantsi. icala le-voltage ye-transformer, ukucinezela i-pulse yangoku, kunye nokubuyisela umthwalo osebenzayo, kunye nokuphucula into yamandla.I-ballast ivelisa i-6K-1 i-pulse yangoku kwinkqubo ye-brushless DC motor, kwaye isebenzisa i-cascaded yangoku ukunyibilikisa okwangoku, kunye ne-dissolved current imalunga ne-5250Hz kunye ne-7350Hz.Ke ngoko, uyilo lwembuyekezo yamandla esebenzayo yesihluzo esiphakathi sokungeniswa kwesithando somlilo kufuneka sithathe i-250Hz, 350Hz kunye noyilo lwamaza njengethagethi, ukuze kuqinisekiswe ukuba isebe lembuyekezo lesihluzi linokucinezela ngokufanelekileyo imbuyekezo yepulse yangoku, kwaye kwangaxeshanye. ixesha licinezela umthwalo osebenzayo kwaye uphucule i-Power Factor.
umsebenzi woyilo
Umba wamandla obanzi we-12500KVA DC yokuvelisa i-brushless motor ibuyekezwe ukusuka kwi-0.62 ukuya malunga ne-0.95.Izixhobo zembuyekezo lokucoca kufuneka zifakwe kunye umthamo 1100KVar, leyo yahlulwe ngamaqela 10 imbuyekezo utshintsho oluzenzekelayo ukubuyisela ukujija kwicala ombane esezantsi ye transformer.I-45KVAR ilungisa ngokuthe ngcembe umthamo ukuze ihlangabezane neemfuno zamandla okuvelisa umgca wokuvelisa.I-630KVA transformer DC brushless motor production line The comprehensive power factor ibuyekezwe ukusuka kwi-0.62 ukuya malunga ne-0.95.Icebo lokucoca imbuyekezo kufuneka ifakwe kunye nomthamo 600KVar, kwaye ngokuzenzekelayo uqhawule ujiko-icala eliphantsi le transformer, kunye umthamo wayo ngokuthe ngcembe uhlengahlengiso 45KVAR, kuthathelwa ingqalelo iimfuno zombane kumgca wemveliso.
Uhlalutyo lwesiphumo emva kokufakwa kwembuyekezo yesihluzi
Ngo-Epreli ka-2010, isixhobo sembuyekezo yamandla e-DC motor filtering reactive yafakwa kwaye yasetyenziswa.Isixhobo silandelela ngokuzenzekelayo utshintsho lweemoto ze-DC kunye neziguquli zefrikhwensi, sicinezela ii-harmonics zomyalelo ophezulu ngexesha lokwenyani, sihlawulela amandla asebenzayo, kwaye siphucula amandla ombane.iinkcukacha ngolu hlobo lulandelayo:
Emva kokuba isixhobo sembuyekezo sokucoca sisetyenzisiwe, amandla okutshintsha igophe malunga ne-0.99 (indawo ephakanyisiweyo imalunga ne-0.6 xa isixhobo sembuyekezo sokucoca sisusiwe)
Umsebenzi wokulayisha
Okwangoku esetyenziswa yi-1250KVA i-transformer iyancipha ukusuka kwi-1960A ukuya kwi-1210A, i-drop ye-38%.Okwangoku esetyenziswa yi-1630KVA i-transformer iyancipha ukusuka kwi-1050A ukuya kwi-657A, i-drop ye-37.5%.Emva kwembuyekezo, ixabiso lokunciphisa ilahleko yamandla yi-WT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=32×{(0.62×3000)3000}2×0.4≈15.8( kw· h) Kwifomula, i-Pd yilahleko yesiphaluka esifutshane ye-transformer, eyi-32KW, kunye nokugcinwa kweendleko zombane ngonyaka yi-15.8 * 10 * 30 * 10 * 0.7 = 33,000 yuan (ngokusekelwe ekusebenzeni iiyure ezingama-20 a usuku, iintsuku ezili-10 ngenyanga, kunye neenyanga ezili-10 ngonyaka, umbane we-kwh nganye yi-0.7 yuan).
imeko amandla factor
Amalungelo apheleleyo enkampani anyukile ukusuka kwi-0.7 ukuya kwi-0.95, into yamalungelo enyanga ihleli kwi-0.96-0.98, kwaye umvuzo wenyanga yi-3,000-4,000 yuan.
I-DC motor filter low-voltage reactive power imbuyekezo iyakwazi ukucinezela i-pulse yangoku kunye nokubuyekeza umthwalo wamandla asebenzayo, ukusombulula ingxaki yesohlwayo samandla asebenzayo, ukwandisa umthamo wemveliso ye-transformer, ukunciphisa ilahleko yembuyekezo yamandla asebenzayo, ukwandisa imveliso, kwaye unike Inkampani ivelise inzuzo ebalulekileyo yezoqoqosho, kwaye umxhasi ufumene utyalo-mali lweprojekthi ngaphantsi konyaka.Ke ngoko, inkampani yaneliseke kakhulu ngembuyekezo yamandla asebenzayo eenjini ze-DC ezingenasbhrashi kunye nezihluzo zokuguqula, kwaye iya kwazisa abanye abathengi kwixa elizayo.
Ixesha lokuposa: Apr-14-2023