Uruganda rwa sima

Amakuru yibanze yabakoresha
Uruganda rwa sima rutanga beto zitandukanye zubaka.Isosiyete ifite imirongo 3 itanga umusaruro.Amashanyarazi ahinduranya akoresha moteri ya inverter, 2000KVA2, 630KVA, kandi buri transformateur ifite ibikoresho byindishyi za capacitor kuruhande rwumuvuduko wo hasi.Igishushanyo cya sisitemu yo gutanga amashanyarazi niki gikurikira:

Amakuru yimikorere
Imbaraga ziva mumashanyarazi yoroshye ya 2000KVA transformateur ni 1720KVA, impuzandengo yingufu ni PF = 0.83, amashanyarazi akora ni 2500A, ingufu ni 530KVA630KVA transformateur, impuzandengo yingufu ni PF = 0.87, naho ikora ni 770A.Inama y’indishyi y’amashanyarazi munsi ya buri transformateur akenshi iba ifite ingendo zingufu, amavuta ya capacitor yamenetse, hamwe nubugenzuzi bwerekana amakuru atemerera ibikorwa bidasanzwe.Kubwibyo, ibintu byose byingufu ni 0.84 gusa, naho ibihano byamashanyarazi ni 20.000 muri Mutarama.Kandi moteri yumurongo wa moteri hamwe nintangiriro yoroshye irashobora rimwe na rimwe guhagarika inganda.

Isesengura rya Sisitemu Yimbaraga
Umutwaro nyamukuru wa ballast ihindura ni 6-imwe ya pulse.Ibikoresho bya ballast bitanga umusaruro mwinshi wa pulse mumurimo wo guhindura AC kuri DC.Nibisanzwe pulse isanzwe kandi ni iyinjiza mumashanyarazi.Imiyoboro ya Harmonic itera imbaraga zumubyigano wamashanyarazi kumurongo uranga amashanyarazi, bikaviramo gutakaza imbaraga zumuriro wumuriro numuyoboro, bigahungabanya ubuziranenge nibikorwa byoguhindura amashanyarazi, kongera umurongo wumurongo no gutandukana kwumuriro, kandi bigatera ingaruka mbi kuri amashanyarazi n'amashanyarazi ubwabyo Ingaruka.
Porogaramu igenzura porogaramu ya mudasobwa (PLC) yunvikana kugoreka guhuza imbaraga za voltage yumurimo wo gutanga amashanyarazi.Mubisanzwe biteganijwe ko igiteranyo cyimikorere yimikorere ya voltage ikorwa (THD) iri munsi ya 5%, hamwe na pulse kugiti cyumubyigano wakazi Niba igipimo cyikigero kiri hejuru cyane, ikosa ryimikorere ya sisitemu yo kugenzura rishobora gutuma habaho ihagarikwa rya umusaruro cyangwa imikorere, bikaviramo impanuka nini yumusaruro.
Iyo banki yububasha bwa reaction yamashanyarazi ishyizwe mubikorwa, kubera ko impanuka ya pulse ihari iranga imbogamizi ya banki ya capacitor iba nto, umubare munini wimpanuka winjizwa mubice bigize capacitor, kandi amafaranga ariyongera cyane, bigira ingaruka zikomeye mubuzima bwa serivisi .Ku rundi ruhande, iyo ubushobozi bwa pulse ya capacitor ya banki ya capacitor ihwanye na inductor ihwanye na inductor ya software ya software, kwiyongera kwimyuka ihuza (inshuro 2-10) bizatera capacitor gushyuha no kuyisenya, kandi pulse igezweho izatera inshuro zimbaraga zisohoka guhinduka.Imiterere ya sinusoidal ntabwo iri murwego, bikavamo amenyo ameze nk'ay'amenyo ameze nk'umuhengeri, kandi bizatera gusohora igice cy'ibikoresho byiziritse, bityo byihutishe kwinjiza ibintu byiziritse, kandi byangiza ubushobozi bwa capacitor.Kubera iyo mpamvu, ubushobozi bwa capacitor yishyurwa ryinama ntishobora gukoreshwa muburyo bwo kwishyura amashanyarazi, kandi hagomba gutoranywa akayunguruzo gafite imbaraga zo guhagarika amashanyarazi.

Shungura gahunda yo kuvura amashanyarazi
Intego z'imiyoborere
Igishushanyo cyibikoresho byindishyi zujuje ibyangombwa bisabwa byo guhagarika guhuza no gucunga ingufu zidasanzwe.
Munsi ya 0.4KV ya sisitemu yo gukora, nyuma yo kuyungurura ibikoresho byindishyi zashyizwe mubikorwa, impanuka ya pulse irahagarikwa, kandi impuzandengo yingufu zingana buri kwezi ni 0.92.
Urwego rwohejuru ruhuza resonance, resonance overvoltage, hamwe na overcurrent iterwa no guhuza na filteri yindishyi zishami ntizizabaho.
Igishushanyo gikurikiza ibipimo
Amashanyarazi meza ya gride rusange ihuza GB / T14519-1993
Imbaraga zamashanyarazi Ihindagurika ryumuvuduko na flicker GB12326-2000
Imiterere rusange ya tekiniki yumubyigano muke wamashanyarazi GB / T 15576-1995
Igikoresho gito cyo kwishyura amashanyarazi JB / T 7115-1993
Amashanyarazi yingirakamaro yuburyo bwa tekiniki JB / T9663-1999 "Umuvuduko muke wogukoresha ingufu zikora indishyi" uhereye kumurongo wo murwego rwohejuru uhuza agaciro ntarengwa imbaraga za voltage nkeya nibikoresho bya elegitoronike GB / T17625.7-1998
Amagambo ya elegitoronike Amashanyarazi Ubushobozi GB / T 2900.16-1996
Umuvuduko muke wa shunt capacitor GB / T 3983.1-1989
Imashini GB10229-88
Imashini IEC 289-88
Umuvuduko muke wa reaction yingufu zumucungamutungo utumiza tekiniki DL / T597-1996
Umuvuduko muke w'amashanyarazi urinda urwego GB5013.1-1997
Umuvuduko muke wuzuye woguhindura ibikoresho no kugenzura GB7251.1-1997

igitekerezo cyo gushushanya
Ukurikije imiterere yihariye yikigo, ibintu byamashanyarazi hamwe no guhagarika pulse birasuzumwa mugushungura kwungururwa ryamashanyarazi ya inverter, kandi ibikoresho byindishyi zananiwe gushirwa kumurongo wa 0.4kV hepfo yumubyimba wa transformateur, ushobora guhagarika impanuka ya pulse kandi yishyure kunoza ibintu byingufu.
Muguhindura, ballast itanga 6K-1 yimbere ya pulse ikurikije imigendekere ya Fourier ikurikirana, hanyuma ikabyara imiyoboro 5 yateye imbere, imwe kuri 250Hz na 7350Hz.Kubwibyo, mugihe hateguwe indishyi zingufu zamashanyarazi kumatara aringaniye, birakenewe gushushanya imirongo igera kuri 250Hz na 350Hz kugirango tumenye neza ko ishami ryindishyi zungurura rishobora guhagarika neza imiyoboro yimitsi, kwishyura imitwaro ikora icyarimwe, no kunoza ibintu byamashanyarazi.

umukoro
Imbaraga zuzuye zumurongo wamashanyarazi uhinduranya ya 2000kV AC transformateur yishyurwa kuva 0.8 kugeza 0.95.Ibikoresho by'indishyi byungururwa bigomba kuba bifite ubunini bwa 760kV, hanyuma bigahita bihindurwamo ibice 8 byumubumbe, hanyuma igice kimwe kigafatanya nindishyi zuzunguruka kuruhande rwa voltage yo hepfo ya transformateur.Imirimo yo guhindura ibyiciro ni 45KVAR, ishobora kuzuza ibisabwa bitandukanye byumurongo wumurongo.Impamvu zuzuye zingufu za 630kV zihinduranya zahinduwe umurongo wahinduwe, kandi indishyi ziva kuri 0.8 kugeza 0.95.Ibikoresho byo kuyungurura bigomba kuba bifite 310kV yubunini, ihita ihindurwamo ibice bine byubunini, kandi imwe ikorana na rezistor ihindagurika kuruhande rwa voltage yo hepfo ya transformateur kugirango indishyi.Imirimo yo guhindura ibyiciro ni 26KVAR, ishobora kuzuza ingufu zinyuranye zumurongo wumurongo.Igishushanyo mbonera cyemeza neza ko imbaraga zirenga 0.95.

Isesengura ryingirakamaro nyuma yo kwishyiriraho indishyi
Muri Nyakanga 2010, hashyizweho ibikoresho byungurura ingufu za inverter zungurura ingufu hanyuma bishyirwa mubikorwa.Igikoresho gihita gikurikirana impinduka zumutwaro wa inverter, kigahagarika imiterere-yo murwego rwohejuru mugihe nyacyo, ikishyura imbaraga zidasanzwe, kandi igateza imbere imbaraga.ibisobanuro nkibi bikurikira:

Nyuma yo gushungura ibikoresho byungururwa bimaze gukoreshwa, imbaraga zimpinduka zumurongo nyuma yigikoresho cyo kuyungurura amashanyarazi kimaze gukoreshwa ni 0.97 (igice cyazamutse ni 0.8 mugihe igikoresho cyo kwishyura cyayungurujwe)

Imikorere
Kugeza ubu ikoreshwa na transformateur ya 2000KVA yagabanutse kuva kuri 2500A igera kuri 2120A, igabanuka rya 15%;ikigezweho ikoreshwa na 630KVA ihinduranya igabanuka kuva kuri 770A ikagera kuri 620A, igabanuka rya 19%.Nyuma yindishyi, thepowerlossreductionvalueisWT = △ Pd * (S1 / S2) 2 * τ * [1- (cosφ1 / cosφ2) 2] = 50 × {(0.85 × 4500) / 4500} 2 × 0.4≈34 (kw h) Muri formula, Pd nigihombo gito cyumuzunguruko wa transformateur, ni 50KW, kandi kuzigama buri mwaka amafaranga yumuriro ni 34 * 20 * 30 * 10 * 0.7 = 142.800 yuan (ukurikije gukora amasaha 20 kumunsi, iminsi 30 mukwezi , Amezi 10 mu mwaka, 0.7 Yuan kuri kilowati).

ibintu byimbaraga
Isosiyete ikora ibijyanye n’ingufu muri rusange yiyongereye kuva kuri 0.8 igera kuri 0.95, naho icyerekezo cy’ingufu za buri kwezi cyagumye kuri 0.96-0.98, kiva ku mafaranga arenga 20.000 ku kwezi kigera ku 6.000-10,000 ku kwezi.
Umuvuduko muke wamashanyarazi yingufu zumurongo woguhindura filteri ufite ubushobozi bwo guhagarika impanuka ya pulse no kwishyura imitwaro ya reaction, gukemura ikibazo cyibihano byamashanyarazi, kongera ubushobozi bwumusaruro wa transformateur, kugabanya igihombo cyindishyi zikomeye, ongera umusaruro, kandi uzane inyungu mubisosiyete Inyungu zubukungu zaragaragaye, kandi ishoramari ryumushinga ryabakiriya ntiriri munsi yumwaka wo kubona ishoramari ryumushinga.Kubwibyo, isosiyete yishimiye cyane indishyi zingufu zamashanyarazi ya inverter, kandi izamenyekanisha abakiriya bamwe mugihe kizaza.