Ulwazi oluyisisekelo lwabasebenzisi
Inkampani egoqa insimbi yenza amaketanga ensimbi awugqinsi angu-0.5mm.Le nkampani inemigqa yokukhiqiza engu-4, okuhlanganisa i-1 yezinsimbi zensimbi ezingu-650 kanye ne-3 yemishini yensimbi engu-450.Amandla okushayela ngokwengxenye ashayelwa ama-DC brushless motors, kanye namasethi ama-3 wama-transformer angu-1250KVA kanye no-630KVA..Umdwebo wesistimu yokunikezwa kwamandla umi kanje:
Idatha yangempela yokusebenza
Isilinganiso samandla se-1250KVA transformer yi-PF=0.62, ukusebenza kwamanje kwe-1960A kanye ne-630KVA transformer ngu-700KVA, isici samandla esimaphakathi ngu-PF=0.62, ukusebenza kwamanje ngu-1050A, wonke ama-transformer akhuluphele, kanye ne-pulse yamanje. yizikhathi ezi-5, isilinganiso samanje sokushintsha ivolumu singu-18.5%.
Ukuhlaziywa Kwesimo Sesistimu Yamandla
Umthwalo oyinhloko we-DC brushless motor ballast ama-ballast angu-6 e-single-pulse.Imishini ye-ballast ikhiqiza inani elikhulu le-pulse yamanje ekusebenzeni kwe-AC, AC, ne-DC.Kungumthombo wamanje we-pulse evamile.Lapho yethulwa kugridi yamandla, i-harmonic current I-voltage yokusebenza yamanje ye-pulse ibangelwa ukuthikamezeka kwesici senethiwekhi yamandla, okuholela ekuphumeni kohlaka lwe-voltage yokusebenza kanye yamanje, okubeka engcupheni ikhwalithi nokusebenza kokuphepha. wokushintshwa kwamandla kagesi, kwandisa ukulahleka kolayini kanye nokuchezuka kwe-voltage yokusebenza, futhi kunomthelela omubi kunethiwekhi yamandla nezinto zikagesi ngokwazo.Ngakho-ke, isinxephezelo se-brushless DC motor kufanele sisebenzise isinxephezelo samandla aphansi-voltage asebenzayo we-pulse current suppression filter ukuze kunxeshezelwe umthwalo osebenzayo, ukuthuthukisa isici samandla, futhi ngeke kujeziswe ngamandla asebenzayo ukuze kwandiswe ukuphuma kwe-transformer. .
Hlunga uhlelo lokwelashwa kwesinxephezelo samandla asebenzayo
Imigomo yokubusa
Idizayini yempahla yesinxephezelo yesihlungi ihlangabezana nezidingo zokucindezelwa kwe-harmonic kanye nokuphathwa kokucindezelwa kwamandla okusebenzayo.
Ngaphansi kwemodi yokusebenza yesistimu engu-0.4KV, ngemva kokuthi isisetshenziswa sesinxephezelo sesihlungi sesiqalile ukusebenza, ishayela liyacindezelwa, futhi isilinganiso samandla sanyanga zonke sicishe sibe ngu-0.92.
I-high-order harmonic resonance, i-resonance overvoltage, kanye ne-overcurrent okubangelwa ukuxhuma kumjikelezo wegatsha lesinxephezelo sesihlungi ngeke kwenzeke.
Umklamo Ulandela Amazinga
Ikhwalithi yamandla Ama-harmonics egridi yomphakathi GB/T14519-1993
Ikhwalithi yamandla Ukushintshashintsha kwe-Voltage nokucwayiza kwe-GB12326-2000
Izimo zobuchwepheshe ezijwayelekile zedivayisi yesinxephezelo samandla asebenzayo aphansi-voltage GB/T 15576-1995
Idivayisi yesinxephezelo samandla asebenzayo we-low-voltage JB/T 7115-1993
Izimo zobuchwepheshe zesinxephezelo samandla asebenzayo JB/T9663-1999 “Isilawuli sesinxephezelo esizenzakalelayo samandla asebenzayo aphansi-voltage” kusukela enanini eliphezulu lomkhawulo wamanje we-harmonic wamandla aphansi kanye nempahla kagesi GB/T17625.7-1998
Imigomo ye-Electrotechnical Amandla capacitor GB/T 2900.16-1996
I-voltage ephansi ye-shunt capacitor GB/T 3983.1-1989
I-Rector GB10229-88
I-Reactor IEC 289-88
I-oda yesilawuli sesinxephezelo samandla asebenzayo aphansi asebenzayo izimo zobuchwepheshe DL/T597-1996
Ibanga eliphansi le-voltage yokuvikela indawo kagesi engu-GB5013.1-1997
I-low-voltage ephelele yokushintsha kanye nemishini yokulawula GB7251.1-1997
Design imibono
Ngokwesimo esithile senkampani, uhlelo lwesinxephezelo samandla asebenzayo esihlungi se-DC brushless motor lakhiwe kucatshangelwa isici samandla okulayisha kanye nokucindezela kwamanje kwe-pulse, kanye nesethi yesinxephezelo samandla asebenzayo esisefa aphansi angu-0.4kV. I-voltage side ye-transformer , ukucindezela i-pulse current, nokunxephezela umthwalo osebenzayo, nokuthuthukisa isici samandla.I-ballast ikhiqiza i-6K-1 pulse current kunqubo ye-brushless DC motor, futhi isebenzisa i-cascaded current ukuze incibilikise yamanje, futhi yamanje encibilikisiwe icishe ibe ngu-5250Hz kanye no-7350Hz.Ngakho-ke, idizayini yesinxephezelo samandla esisebenzayo yesihlungi sesithando sokungenisa imvamisa emaphakathi kufanele ithathe u-250Hz, 350Hz kanye nomklamo wamafrikhwensi njengokuqondisiwe, ukuze kuqinisekiswe ukuthi igatsha lesinxephezelo lesihlungi lingacindezela ngempumelelo isinxephezelo samanje se-pulse, futhi ngesikhathi esifanayo. isikhathi cindezela umthwalo osebenzayo futhi uthuthukise i-Power Factor.
umsebenzi wokuklama
Isici samandla esiphelele somugqa wokukhiqiza wezimoto ongu-12500KVA DC sinxeshezelwa sisuka ku-0.62 siye cishe ku-0.95.Imishini yesinxephezelo yesihlungi kufanele ifakwe ngevolumu ye-1100KVar, ehlukaniswe ngamaqembu ayi-10 esinxephezelo sokushintsha okuzenzakalelayo ukuze kunxeshezelwe ukugoqa ohlangothini olungezansi lwe-voltage ye-transformer.I-45KVAR ilungisa kancane kancane ivolumu ukuze ihlangabezane nezidingo zamandla okukhipha umugqa wokukhiqiza.I-630KVA transformer DC brushless motor production line Isici samandla esibanzi sinxeshezelwa sisuka ku-0.62 siye cishe ku-0.95.Idivayisi yesinxephezelo yesihlungi kufanele ifakwe ngevolumu engu-600KVar, futhi inqamule ngokuzenzakalelayo i-low-side winding ye-transformer, kanye nevolumu yayo elungiswa kancane ka-45KVAR, kucatshangelwa izidingo ze-voltage zomugqa wokukhiqiza.
Ukuhlaziywa komthelela ngemva kokufakwa kwesinxephezelo sesihlungi
Ngo-April 2010, idivayisi ye-DC motor filtering reactive power isinxephezelo yafakwa futhi yaqala ukusebenza.Idivayisi ilandelela ngokuzenzakalelayo izinguquko zomthwalo wamamotho e-DC neziguquli zefrikhwensi, icindezela ama-harmonics e-oda eliphezulu ngesikhathi sangempela, inxephezela amandla asebenzayo, futhi ithuthukisa isici samandla.imininingwane kanjena:
Ngemva kokuthi idivayisi yesinxephezelo sesihlungi isiqalile ukusetshenziswa, ijika lokushintsha isici samandla licishe libe ngu-0.99 (ingxenye ephakanyisiwe icishe ibe ngu-0.6 lapho kukhishwa idivayisi yesinxephezelo sesihlungi)
Layisha ukusebenza
Eyamanje esetshenziswa i-1250KVA transformer yehlisiwe isuka ku-1960A yaya ku-1210A, ukwehla ngama-38%.Eyamanje esetshenziswa i-1630KVA transformer yehlisiwe isuka ku-1050A yaya ku-657A, yehle ngo-37.5%.Ngemva kwesinxephezelo, inani lokunciphisa ukulahlekelwa kwamandla ngu-WT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=32×{(0.62×3000)3000}2×0.4≈15.8( kw· h) Kufomula, i-Pd ukulahleka kwesikhashana kwe-transformer, okungu-32KW, futhi ukonga ngonyaka izindleko zikagesi ngu-15.8*10*30*10*0.7=33,000 yuan (ngokusekelwe ekusebenzeni amahora angu-20 a usuku, izinsuku ezingu-10 ngenyanga, nezinyanga ezingu-10 ngonyaka, ugesi we-kwh u-0.7 yuan).
isimo amandla factor
Isici esiphelele samalungelo enkampani sikhuphuke sisuka ku-0.7 saya ku-0.95, isici samalungelo sanyanga zonke sisele ku-0.96-0.98, kanti iholo lanyanga zonke liyi-3,000-4,000 yuan.
I-DC motor filter low-voltage reactive power isinxephezelo sinamandla okucindezela i-pulse yamanje kanye nokunxephezela umthwalo wamandla asebenzayo, ukuxazulula inkinga yesijeziso samandla asebenzayo, ukwandisa umthamo wokuphuma kwe-transformer, ukunciphisa ukulahlekelwa kwesinxephezelo samandla asebenzayo, ukwandisa okukhiphayo, futhi ukunikeza Inkampani ikhiqize izinzuzo ezibalulekile zezomnotho, futhi iklayenti lithole utshalomali lwephrojekthi isikhathi esingaphansi konyaka.Ngakho-ke, inkampani yaneliseke kakhulu ngesinxephezelo samandla asebenzayo wama-brushless DC motors nezihlungi ze-inverter, futhi izokwethula amakhasimende athile esikhathini esizayo.
Isikhathi sokuthumela: Apr-14-2023