Zambiri za ogwiritsa ntchito
Njira yofunika kwambiri yopangira zimbudzi zapanyumba zamakampani opangira madzi oyipa, gawo losinthira magetsi lamzere wamadzi otayira limagwiritsa ntchito ma DC variable frequency drive motors, okhala ndi 1000KVA2, 630KVA zosintha.Chithunzi cha dongosolo lamagetsi ndi motere:
Zomwe zimagwira ntchito
Mphamvu yotulutsa ya 1000KVA choyambira chofewa ndi 860KVA, mphamvu yapakati ndi PF=0.83, yomwe ikugwira ntchito ndi 1250A, yomwe ikugwira ntchito ndi 630KVA, mphamvu ndi PF=0.87, ndipo yogwira ntchito ndi 770A.Chifukwa chake mphamvu yonse imatha kukhala 0.84.
Kusanthula Mkhalidwe Wamagetsi
Katundu wamkulu wa chosinthira chosinthira ndi 6 single-pulse ballasts.Zida za ballast zimapanga kuchuluka kwamphamvu kwamphamvu pantchito yosinthira AC kukhala DC.Ndi gwero lamphamvu lamphamvu ndipo limalowetsedwa mu gridi yamagetsi.Mafunde a Harmonic amachititsa kuti mphamvu yamagetsi iwonongeke pamagetsi amagetsi, zomwe zimapangitsa kuti magetsi azitha kugwira ntchito komanso apano, kuwononga khalidwe ndi chitetezo cha makina ogwiritsira ntchito magetsi, kuwonjezereka kwa kutayika kwa mizere ndi kuwonongeka kwa magetsi, ndikupangitsa zotsatira zoipa pa. gululi mphamvu ndi zomera mphamvu okha Chikoka.
Pulogalamu yoyang'anira makompyuta (PLC) imakhudzidwa ndi kusokonekera kwa mphamvu yamagetsi yamagetsi osinthira magetsi.Nthawi zambiri zimanenedwa kuti mphamvu yamagetsi yomwe ikugwira ntchito pakali pano (THD) ndi yochepera 5%, ndipo mphamvu yamagetsi yomwe ikugwira ntchito pakali pano ngati chiwongola dzanja chakwera kwambiri, kuwonongeka kwa makina owongolera kungayambitse kusokonezeka kwa magetsi. kupanga kapena kugwira ntchito, zomwe zimapangitsa kuti pakhale ngozi yayikulu yopangira.Chifukwa chake, fyuluta yolipirira mphamvu yocheperako yocheperako yokhala ndi pulse current kupondereza ntchito iyenera kugwiritsidwa ntchito kupondereza kugunda kwadongosolo, kubweza katundu wokhazikika, ndikuwongolera mphamvu yamagetsi.
Sefa dongosolo lothandizira chipukuta misozi
Zolinga zaulamuliro
Mapangidwe a zida zolipirira zosefera amakwaniritsa zofunikira pakuponderezedwa kwa ma harmonic ndi kasamalidwe kamphamvu koletsa mphamvu.
Pansi pa makina ogwiritsira ntchito a 0.4KV, zida zolipirira zosefera zitayamba kugwira ntchito, kugunda kwamagetsi kumaponderezedwa, ndipo mphamvu yapakati pamwezi imakhala pafupifupi 0.92.
High-order harmonic resonance, resonance overvoltage, ndi overcurrent chifukwa cholumikizana ndi fyuluta compensation nthambi dera sizidzachitika.
Mapangidwe Amatsatira Miyezo
Ubwino wa mphamvu Public gululi harmonics GB/T14519-1993
Kusinthasintha kwamphamvu kwa Voltage ndi kusinthasintha kwa GB12326-2000
General mikhalidwe luso otsika-voteji zotakasika mphamvu chipukuta misozi chipangizo GB/T 15576-1995
Chipangizo cholipirira magetsi otsika-voltage JB/T 7115-1993
Chiwongola dzanja champhamvu chaukadaulo JB/T9663-1999 "Low-voltage reactive power automatic compensation controller" kuchokera pamlingo wapanthawiyo wapamalire wamagetsi otsika ndi zida zamagetsi GB/T17625.7-1998
Electrotechnical mawu Mphamvu capacitors GB/T 2900.16-1996
Low voteji shunt capacitor GB/T 3983.1-1989
Mphamvu ya GB10229-88
Mphamvu ya IEC 289-88
Low-voltage reactive power compensation controller order mikhalidwe DL/T597-1996
Low-voltage magetsi mpanda chitetezo kalasi GB5013.1-1997
Low-voltage wathunthu switchgear ndi kulamulira zida GB7251.1-1997
Malingaliro opangira
Malinga ndi momwe zinthu zilili pakampaniyo, dongosolo la chiwongola dzanja champhamvu cha inverter mphamvu zosefera zomwe zimaganizira mozama za mphamvu yamagetsi ndi kuponderezana kwaposachedwa kumapangidwa, ndipo seti ya fyuluta yotsika imayikidwa pa voteji pansi pa 0.4kV. mbali ya kampani ya thiransifoma Reactive mphamvu chipukuta misozi kupondereza pulse panopa, kubweza katundu reactive, ndi kusintha mphamvu factor.
Ballast imapanga 6K-1 order pulse panopa panthawi yosinthira, ndipo imagwiritsa ntchito ndondomeko ya tsamba mozungulira 5250Hz ndi 7350Hz kuti isinthe kusinthika.Choncho, zotakataka zochitira chipukuta misozi kamangidwe ka wapakatikati pafupipafupi induction ng'anjo fyuluta ayenera kutenga 250Hz, 350Hz ndi kamangidwe pafupipafupi monga chandamale, kuti kuonetsetsa kuti malipiro nthambi fyuluta akhoza bwino kupondereza kugunda panopa chipukuta misozi, ndipo nthawi yomweyo. nthawi kupondereza katundu wokhazikika ndikuwongolera Mphamvu ya Mphamvu.
ntchito yopanga
Mphamvu zonse za mzere wopanga thiransifoma wa 1000KVA zimalipidwa kuchokera pa 0.8 mpaka pafupifupi 0.95.Zida zolipirira zosefera ziyenera kukhazikitsidwa ndi voliyumu ya 380KVar, yomwe imagawidwa m'magulu anayi, omwe amangotsekeka ndikuchotsedwa, amalipira kukana kwamagetsi apansi pa thiransifoma, ndipo ali ndi voliyumu yosintha. wa 45KVAR, amene akhoza Integrated mu mphamvu linanena bungwe zofunika mzere kupanga.Mphamvu yamphamvu yonse imalipidwa kuchokera pa 0,8 mpaka 0.95.Zida zolipirira zosefera ziyenera kukhazikitsidwa ndi voliyumu ya 310KVar, ndipo magulu anayi amangodulidwa kuti alipirire mafunde otsika amtundu wa thiransifoma, ndipo voliyumuyo imasinthidwa kukhala 26KVAR kuti ikwaniritse zofunikira zamagetsi amtundu wopanga.
Kusanthula zotsatira pambuyo kukhazikitsa chipukuta misozi
Mu Ogasiti 2010, makina osefa a inverter a reactive power compensation adayikidwa ndikuyamba kugwira ntchito.Chipangizocho chimangotsata kusintha kwa katundu wa inverter, kupondereza ma harmonics apamwamba mu nthawi yeniyeni, kubwezera mphamvu zowonongeka, ndikuwongolera mphamvu yamagetsi.zambiri monga izi:
Chida cholipirira chosefera chikagwiritsidwa ntchito, mphamvu yosinthira mphamvu ikagwiritsidwa ntchito ndi 0.97 (gawo lokwezeka limakhala pafupifupi 0.8 pomwe chida cholipirira chosefera chachotsedwa)
Katundu ntchito
Zomwe zimagwiritsidwa ntchito ndi 1000KVA transformer zimachepetsedwa kuchokera ku 1250A mpaka 1060A, dontho la 15%;zomwe zimagwiritsidwa ntchito ndi 630KVA transformer zimachepetsedwa kuchokera ku 770A mpaka 620A, dontho la 19%.Pambuyo pa chipukuta misozi, mtengo wochepetsera kutaya mphamvu ndi WT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=24×{(0.85×2000)/2000}2×0.4≈16 (kw h) Mu chilinganizo, Pd ndi kutayika kwafupipafupi kwa thiransifoma, yomwe ndi 24KW, ndipo kupulumutsa pachaka kwa ndalama zamagetsi ndi 16 * 20 * 30 * 10 * 0.7 = 67,000 yuan (kutengera ntchito maola 20 a tsiku, masiku 30 pamwezi, miyezi 10 pachaka, 0,7 yuan pa kWh).
Katundu ntchito
Zomwe zimagwiritsidwa ntchito ndi 1000KVA transformer zimachepetsedwa kuchokera ku 1250A mpaka 1060A, dontho la 15%;zomwe zimagwiritsidwa ntchito ndi 630KVA transformer zimachepetsedwa kuchokera ku 770A mpaka 620A, dontho la 19%.Pambuyo pa chipukuta misozi, mtengo wochepetsera kutaya mphamvu ndi WT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=24×{(0.85×2000)/2000}2×0.4≈16 (kw h) Mu chilinganizo, Pd ndi kutayika kwafupipafupi kwa thiransifoma, yomwe ndi 24KW, ndipo kupulumutsa pachaka kwa ndalama zamagetsi ndi 16 * 20 * 30 * 10 * 0.7 = 67,000 yuan (kutengera ntchito maola 20 a tsiku, masiku 30 pamwezi, miyezi 10 pachaka, 0,7 yuan pa kWh).
Nthawi yotumiza: Apr-14-2023