Zambiri za ogwiritsa ntchito
Fakitale ya simenti imapanga konkire yomanga zosiyanasiyana.Kampaniyo ili ndi mizere itatu yopanga.Mphamvu yosinthira imagwiritsa ntchito ma inverter drive motors, 2000KVA2, 630KVA thiransifoma, ndipo thiransifoma iliyonse imakhala ndi kabati yamalipiro a capacitor kumbali yakukakamiza pansi.Chithunzi cha dongosolo lamagetsi ndi motere:
Zomwe zimagwira ntchito
Mphamvu zotulutsa zoyambira zofewa za 2000KVA thiransifoma ndi 1720KVA, mphamvu yapakati ndi PF=0.83, yomwe ikugwira ntchito ndi 2500A, mphamvu ndi 530KVA630KVA chosinthira, mphamvu yapakati ndi PF=0.87, ndipo yogwira ntchito ndi 770A.Kabati yolipirira mphamvu yokhazikika pansi pa thiransifoma iliyonse nthawi zambiri imakhala ndi maulendo amagetsi, kutayikira kwamafuta a capacitor, ndi zidziwitso zowonetsera zowongolera zomwe sizimalola magwiridwe antchito achilendo.Chifukwa chake, mphamvu yayikulu ndi 0.84 yokha, ndipo chilango champhamvu chokhazikika chili pafupi 20,000 mu Januware.Ndipo ma motors line motors ndi zoyambira zofewa nthawi zina zimatha kusokoneza kupanga.
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.
Pamene zotakataka zotakasuka mphamvu chipukuta misozi capacitor banki aikidwa ntchito, chifukwa zimachitika panopa khalidwe impedance wa banki capacitor ndi yaing'ono, kuchuluka kwa kugunda panopa anayambitsa zikuchokera capacitor zikuchokera, ndipo kuchuluka panopa amakula mofulumira, kukhudza kwambiri moyo utumiki wake. .Kumbali ina, pamene kugunda panopa capacitor wa capacitor banki ndi lofanana pulse panopa inductor pulogalamu dongosolo, kuwonjezeka harmonic panopa (2-10 nthawi) kuchititsa capacitor kutenthedwa ndi kuwononga izo, ndi pulse current idzapangitsa kuti ma frequency amphamvu atuluke asinthe.Sinusoidal waveform yatuluka mu chimango, zomwe zimapangitsa kuti pakhale mawotchi akuthwa ngati macheka, ndipo amayambitsa kutulutsa kwapang'onopang'ono kwa zinthu zosanjikiza zotchingira, potero kufulumizitsa kufalikira kwa zinthu zosanjikiza, ndikuwononga capacitor.Chifukwa chake, capacitor reactive power compensation cabinet siyingagwiritsidwe ntchito pobweza mphamvu ya inverter, ndipo fyuluta yokhala ndi pulse current kupondereza ntchito iyenera kusankhidwa kuti ipereke chipukuta misozi chochepa chamagetsi.
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
lingaliro la mapangidwe
Malinga ndi momwe kampaniyo ikukhalira, mphamvu yamagetsi ndi kuponderezedwa kwaposachedwa kumaganiziridwa pakulipira kwamagetsi kwamagetsi osinthira magetsi, ndipo zida zolipirira zolephera zosefera zimayikidwa kumbali ya 0.4kV pansi voteji ya thiransifoma, yomwe imatha kupondereza. kugunda kwapano ndikubwezera kuwongolera kwa chinthu champhamvu.
Mu converter, ballast imapanga 6K-1 mafunde apamwamba kwambiri malinga ndi Fourier series flow flow, ndiyeno imapanga 5 advanced pulse currents, iliyonse pa 250Hz ndi 7350Hz.Chifukwa chake, popanga chiwongola dzanja champhamvu chamagetsi apakatikati, ndikofunikira kupanga ma frequency ozungulira 250Hz ndi 350Hz kuwonetsetsa kuti nthambi yolipirira zosefera imatha kupondereza mafunde, kubweza katundu wokhazikika nthawi imodzi, ndikuwongolera mphamvu yamagetsi.
ntchito yopanga
Mphamvu yokwanira ya chingwe chamagetsi chamagetsi cha 2000kV AC thiransifoma amalipidwa kuchokera pa 0.8 mpaka 0.95.Zida zolipirira zosefera ziyenera kukhala ndi voliyumu ya 760kV, ndikusinthidwa kukhala magawo 8 a ma voliyumu, ndipo seti imodzi imagwirizana ndi chipukuta misozi chapansi pa voltage ya thiransifoma.Ntchito yosinthira kalasi ndi 45KVAR, yomwe imatha kukwaniritsa zofunikira zosiyanasiyana zamagetsi pamzere wopanga.Mphamvu yamphamvu ya 630kV transfoma paired converter line yalipidwa, ndipo chipukuta misozi chikuchokera pa 0.8 mpaka 0.95.Zida zolipirira zosefera ziyenera kukhala ndi voliyumu ya 310kV, yomwe imasinthidwa yokha kukhala magawo anayi a ma voliyumu, ndipo seti imodzi imagwirizana ndi chopinga chomangirira pansi pa voliyumu yamagetsi yamagetsi kuti chibweze.Ntchito yosinthira kalasi ndi 26KVAR, yomwe imatha kukwaniritsa zofunikira zosiyanasiyana zamagetsi pamzere wopanga.Mapangidwe a chiwembu amatsimikizira kuti mphamvu yamagetsi imaposa 0.95.
Kusanthula zotsatira pambuyo kukhazikitsa chipukuta misozi
Mu July 2010, inverter kusefa reactive mphamvu chipukuta nsonga chipangizo anaikidwa ndi kuikidwa 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 otembenuza 2000KVA zimachepetsedwa kuchokera ku 2500A mpaka 2120A, dontho la 15%;zomwe zimagwiritsidwa ntchito ndi otembenuza 630KVA zachepetsedwa kuchokera ku 770A kufika ku 620A, dontho la 19%.Pambuyo pa chipukuta misozi,thepowerlossreductionvalueisWT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=50×{(0.85×4500)/4500}2×0.4≈34(kw h) Mu Fomula, Pd ndikuwonongeka kwakanthawi kochepa kwa thiransifoma, komwe ndi 50KW, ndipo kupulumutsa ndalama zamagetsi pachaka ndi 34*20*30*10*0.7=142,800 yuan (kutengera kugwira ntchito maola 20 patsiku, masiku 30 pamwezi. , miyezi 10 pachaka, 0,7 yuan pa kWh).
mphamvu factor situation
Mlozera waumisiri wamagetsi wamakampaniwo wakwera kuchokera pa 0.8 mpaka 0.95, ndipo index yamagetsi yapamwezi yakhalabe pa 0.96-0.98, ikukwera kuchokera ku yuan yopitilira 20,000 pamwezi kupita ku yuan 6,000-10,000 pamwezi.
The low-voltage zotakasika mphamvu chipukuta misozi fyuluta kutembenuka pafupipafupi ali ndi mphamvu kupondereza zimachitika panopa ndi kubweza zotakasika katundu, kuthetsa vuto la zotakasika mphamvu chilango, kuwonjezera linanena bungwe mphamvu ya thiransifoma, kuchepetsa imfa ya yogwira chipukuta misozi mphamvu, kuonjezera linanena bungwe, ndi kubweretsa phindu kwa kampani Zodziwikiratu phindu zachuma apangidwa, ndi kasitomala ntchito ndalama ndi zosakwana chaka chimodzi kupeza ndalama polojekiti.Chifukwa chake, kampaniyo imakhutitsidwa kwambiri ndi chipukuta misozi champhamvu cha inverter, ndipo idzabweretsa makasitomala ena m'tsogolomu.
Nthawi yotumiza: Apr-13-2023