Generator Flywheel mmetụta na nkwụsi ike nke turbine Gọvanọ SystemGenerator Flywheel Mmetụta na nkwụsi ike nke turbine Gọvanọ System
Nnukwu ndị na-emepụta mmiri mmiri ọgbara ọhụrụ nwere obere inertia na-adịgide adịgide ma nwee ike iche nsogbu maka nkwụsi ike nke sistemu nchịkwa turbine.Nke a bụ n'ihi omume nke mmiri turbine, nke n'ihi inertia ya na-eme ka hama mmiri dị na pipụ nrụgide mgbe a na-arụ ọrụ njikwa.Nke a n'ozuzu e ji hydraulic acceleration oge na-agbanwe agbanwe.N'ime ọrụ dịpụrụ adịpụ, mgbe a na-ekpebi ugboro nke usoro dum site na gọvanọ turbine, hama mmiri na-emetụta ọsọ ọsọ na enweghị ntụkwasị obi na-egosi dị ka ịchụ nta ma ọ bụ ugboro ugboro.Maka ọrụ jikọrọ ọnụ na nnukwu sistemu, a na-ejidekarị ugboro ole mgbe emechara.The mmiri hammer mgbe ahụ mmetụta ike nri na usoro na nkwụsi ike nsogbu na-ebilite naanị mgbe ike na-achịkwa na a mechiri emechi akaghị, ya bụ, bụrụ na ndị hydro generators nke na-ekere òkè na ugboro ụkpụrụ.
Nkwụsi ike nke ngwa gọvanọ turbine na-emetụta nke ukwuu site na nha nke oge ngwa ngwa ngwa ngwa n'ihi oge ịgba ọsọ hydraulic nke oke mmiri yana site na uru nke gọvanọ.Mbelata nke oke dị n'elu nwere mmetụta na-emebi emebi ma na-eme ka mbelata uru gọvanọ, nke na-emetụta nkwụsi ike ugboro ugboro.N'ihi ya, opekempe mmetụta flywheel maka ntụgharị akụkụ nke otu mmiri dị mkpa nke enwere ike ịnye naanị na generator.Enwere ike ibelata oge nrụnye ngwa ngwa n'ụzọ ọzọ site na ịnye valvụ enyemaka nrụgide ma ọ bụ tankị ịwa ahụ, wdg, mana ọ na-adịkarị oke ọnụ.Ihe njiri mara maka ikike nhazi ọsọ nke ngalaba na-emepụta mmiri nwere ike dabere na ịrị elu ọsọ nke unit ahụ nwere ike were were were na njụ nke ibu niile akwadoro nke ngalaba na-arụ ọrụ n'onwe ya.Maka nkeji ike na-arụ ọrụ na nnukwu sistemu ejikọtara ọnụ na nke achọrọ iji hazie ugboro sistemu, index ịrị elu pasentị dị ka agbakọrọ n'elu agaghị agafe pasenti 45.Maka sistemu ndị pere mpe, a ga-enye ịrị elu ọsọ nta (Ntụaka Isi nke 4).
Akụkụ ogologo oge site na oriri gaa na ọkụ ọkụ Dehar
(Isi mmalite: Akwụkwọ site n'aka onye edemede - 2nd World Congress, International Water Resources Association 1979) Maka Dehar Power Plant, a na-egosi usoro mmiri nrụgide nke hydraulic na-ejikọta nchekwa na-edozi ahụ na nkeji ike nke nwere mmiri oriri, ọwara nrụgide, tankị ịwa ahụ dị iche iche na penstock. .Ibelata oke nrụgide ịrị elu na penstock ruo pasent 35 atụmatụ ịrị elu ọsọ nke unit ahụ mgbe ọ jụrụ ibu zuru oke ruru ihe dị ka pasenti 45 ka onye ọchịchị mechiri.
oge nke 9.1 sekọnd na gosiri isi nke 282 m (925 ft) na nkịtị flywheel mmetụta nke n'usoro n'usoro nke generator (ie, ofu on okpomọkụ ịrị elu echiche naanị).Na ọkwa mbụ nke ọrụ, a chọpụtara na ịrị elu ọsọ adịghị ihe karịrị pasenti 43.N'ihi ya, a tụlere na mmetụta flywheel nkịtị zuru oke maka ịhazi ugboro nke usoro ahụ.
Parameters Generator na Eletrik kwụsie ike
The generator parameters nke nwere mmetụta na nkwụsi ike bụ mmetụta flywheel, transient reactance na mkpụmkpụ sekit ruru.Na mmalite ogbo nke mmepe nke 420 kV EHV usoro dị ka na Dehar nsogbu nke nkwụsi ike dị oké egwu n'ihi adịghị ike usoro, ala mkpụmkpụ sekit larịị, ọrụ na-eduga ike ihe, na mkpa maka aku na uba na-enye nnyefe outlets na fixing size na. parameters nke na-amụba nkeji.Ọmụmụ nkwụsi ike nke mbido mbụ na onye nyocha netwọkụ (iji voltaji na-adị mgbe niile n'azụ nzaghachi na-adịru nwa oge) maka sistemụ Dehar EHV gosikwara na ọ bụ naanị nkwụsi ike dị n'akụkụ ka a ga-enweta.Na mmalite ogbo nke imewe nke Dehar Power Plant a na-atụle na-akọwa generators na nkịtị
e ji mara na imezu chọrọ nkwụsi ike site optimizing parameters nke ihe ndị ọzọ metụtara karịsịa ndị nke excitation usoro ga-aku na uba dị ọnụ ala ọzọ ọzọ.N'ime nnyocha nke British Sistemu egosikwara na mgbanwe generator parameters nwere obere mmetụta na nkwụsi ike n'akụkụ.N'ihi ya, paramita generator nkịtị dị ka e nyere na ntinye aka ka akọwapụtara maka generator.A na-enye ihe ọmụmụ nkwụsi ike zuru ezu e mere
Ike Nchaji Ahịrị yana kwụsie ike voltaji
Ndị na-emepụta mmiri mmiri dịpụrụ adịpụ nke a na-eji na-ebunye ahịrị EHV ogologo ebukarịrị nke chaja kVA karịrị ike ịchaji igwe nke igwe, igwe ahụ nwere ike inwe mmasị onwe ya na voltaji na-ebili karịa njikwa.Ọnọdụ maka mkpali onwe onye bụ na xc
Ikike ịchaji ahịrị dị na voltaji enyere ikike sitere na jenerato Dehar dị ka ndị na-ebunye akụrụngwa siri kwenye bụ nke a:
(i) Pasent 70 gosiri MVA, ya bụ, chaja ahịrị 121.8 MVAR ga-ekwe omume site na mkpali kacha mma nke pasent 10.
(ii) Ruo 87 pasent nke MVA akwadoro, ya bụ, ikike ịchaji ahịrị 139 MVAR ga-ekwe omume na mkpali kacha mma nke 1 pasent.
(iii) Ruo 100 pasent nke MVAR e gosiri, ya bụ, 173.8 akara ike ike nwere ike nweta ihe dị ka 5 pasent mkpali na-adịghị mma na kacha akara nchaji ikike nke nwere ike nweta na-adịghị mma excitation nke 10 percent bụ 110 pasent nke gosiri MVA (191 MVAR). ) dị ka BSS si kwuo.
(iv) Mmụba ọzọ na ike ịchaji ahịrị ga-ekwe omume naanị site n'ịbawanye nha igwe.N'ihe banyere (ii) na (iii) njikwa aka nke mkpali agaghị ekwe omume na ntụkwasị obi zuru oke ga-etinyerịrị na arụ ọrụ na-aga n'ihu nke ndị na-ahụ maka ọkụ eletrik na-arụ ọrụ ngwa ngwa.Ọ bụghị na akụ na ụba ga-ekwe omume ma ọ bụ na-achọsi ike ịbawanye nha nke igwe maka nzube nke ịbawanye ike nchaji ahịrị.N'ihi ya, n'iburu n'uche ọnọdụ ọrụ na ọkwa mbụ nke ọrụ, e kpebiri ịnye maka ikike ịchaji ahịrị nke 191 MVAR na voltaji akara maka ndị na-emepụta ọkụ site na ịnye mkpali na-adịghị mma na ndị na-emepụta ọkụ.Ọnọdụ arụ ọrụ dị oke mkpa na-akpata ọgba aghara voltaji nwekwara ike ịkpata nkwụsị nke ibu na njedebe nnata.Ihe omume a na-eme n'ihi ntinye capacitive na igwe nke na-enwe mmetụta dị njọ site na ọsọ ọsọ nke generator.Mmasị onwe onye na voltaji enweghị ntụkwasị obi nwere ike ime ma ọ bụrụ.
Xc ≤ n2 (Xq + XT)
Ebe, Xc bụ capacitive ibu reactance, Xq bụ quadrature axis synchronous reactance na n bụ ndị ikwu kacha karịa ọsọ na-eme na ibu jụrụ.A na-atụ aro ka a kpochapụ ọnọdụ a na generator Dehar site n'inye 400 kV EHV shunt reactor (75 MVA) jikọtara na-adịgide adịgide na njedebe nke ahịrị dị ka nyocha zuru ezu mere.
Igwe ikuku na-ekpo ọkụ
Isi ọrụ nke ikuku damper bụ ikike ya igbochi oke oke voltaji ma ọ bụrụ n'ahịrị iji kwụ n'ahịrị mmejọ na ibu capacitive, si otú a na-ebelata nrụgide oke voltaji na akụrụngwa.N'iburu n'uche ọnọdụ dịpụrụ adịpụ na ahịrị nnyefe ogologo njikọ njikọ jikọtara ọnụ nke ọma na windings damper na oke nke quadrature na mmeghachi omume axis ozugbo Xnq/Xnd na-agafeghị 1.2 ka akọwapụtara.
Njirimara Generator na usoro mkpali
Ndị na-emepụta ihe nke nwere àgwà nkịtị ka akọwapụtagoro na ọmụmụ izizi gosipụtara na ọ bụ naanị nkwụsi ike dị n'akụkụ, e kpebiri na a ga-eji ngwa ihe mkpali dị elu na-agba ọsọ iji kwalite oke nkwụsi ike ka e wee nweta nhazi ngwa ngwa kachasị mma.Emere nyocha zuru oke iji chọpụta njirimara kacha mma nke akụrụngwa mkpali ahụ kwụ ọtọ ma tụlere n'isi nke 10.
Atụmatụ seismic
Osisi ọkụ Dehar dara na mpaghara seismic.N'ịgbaso usoro n'usoro ihe nrụpụta hydro generator na Dehar ka a tụrụ aro ya na ndị na-emepụta akụrụngwa na-echebara ọnọdụ seismic na geological na saịtị na akụkọ nke kọmitii ọkachamara ala ọma jijiji nke Koyna nke gọọmentị India mebere site n'enyemaka nke UNESCO.
Mechanical Ike
Emebere ndị na-emepụta ihe na Dehar ka ọ nagide n'enweghị nsogbu ọ bụla ike osooso ala ọma jijiji ma n'akụkụ vetikal na kwụ ọtọ a na-atụ anya na Dehar na-eme n'etiti igwe.
Frequency eke
A na-edobe oge okike nke igwe nke ọma (dị elu) site na ugboro magnetik nke 100 Hz (ugboro abụọ nke igwe na-emepụta ihe).A ga-ewepụ ugboro ole okike a site na ugboro ala ọma jijiji wee lelee maka oke oke nke ọma megide ugboro ala ọma jijiji kachasị na ọsọ dị oke egwu nke usoro ntụgharị.
Nkwado generator stator
The generator stator na ala ntule na nduzi na-ebu ntọala nwere ọnụ ọgụgụ nke naanị efere.A ga-ekekọta naanị efere na ntọala n'akụkụ na mgbakwunye na ntụzịaka kwụ ọtọ site na bolts ntọala.
Ntuzi Nrụpụta Nhazi
Nduzi bearings ka ọ bụrụ nke akụkụ akụkụ ma na-eme ka akụkụ ndị na-eduzi ntuziaka sie ike iguzogide ike ala ọmajiji zuru oke.Ndị na-emepụta ihe na-atụ aro ka ha kechie ihe nkwado dị n'elu n'akụkụ ya na gbọmgbọm (ihe mkpuchi generator) site na eriri ígwè.Nke a ga-apụtakwa na gbọmgbọm kọmpụta ahụ n'aka nke ya ga-ewusi ike.
Nchọpụta ịma jijiji nke Generators
Nwụnye nke ihe nchọta ịma jijiji ma ọ bụ mita eccentricity na turbines na ndị na-emepụta ọkụ ka akwadoro ka etinye ya maka ibido mmechi na mkpu ma ọ bụrụ na ịma jijiji n'ihi ala ọma jijiji gafere uru eburu ụzọ kpebie.Enwere ike iji ngwaọrụ a chọpụta ịma jijiji ọ bụla pụrụ iche nke otu n'ihi ọnọdụ hydraulic na-emetụta turbine.
Ndị kọntaktị Mercury
Enwere ike ịma jijiji siri ike n'ihi ala ọmajiji ga-ebute ọdịda ụgha maka ibido mmechi nke otu ma ọ bụrụ na ejiri kọntaktị mercury mee ihe.Enwere ike zere nke a site n'ịkọwapụta ụdị mgbanaka mercury mgbanaka ma ọ bụ ọ bụrụ na ọ dị mkpa site na ịgbakwunye relays oge.
Mkpebi
(1) Enwetara nnukwu akụ na ụba na ọnụ ahịa akụrụngwa na ihe owuwu dị na Dehar Power Plant site n'inwe nnukwu nha nha nha n'elele nha nke grid yana mmetụta ya na ikike ohere sistemụ.
(2) A na-ebelata ọnụ ahịa ndị na-emepụta ihe site n'inwe nche anwụ nke ihe owuwu nke ga-ekwe omume ugbu a maka ndị na-emepụta mmiri na-agba ọsọ dị elu n'ihi mmepe nke nnukwu ígwè nchara maka rotor rim punchings.
(3) Ịzụta ndị na-emepụta ihe na-emepụta ike dị elu mgbe nyocha zuru ezu rụpụtara n'ihu na-echekwa ego na ọnụ ahịa ya.
(4) Nkịtị flywheel mmetụta nke na-atụgharị akụkụ nke generator na ugboro regulating ọdụ na Dehar e weere zuru ezu maka nkwụsi ike nke turbine gọvanọ usoro n'ihi nnukwu interconnected usoro.
(5) Pụrụ iche nke ndị na-emepụta ihe dịpụrụ adịpụ na-enye netwọk EHV nri maka ịgba mbọ hụ na nkwụsi ike eletrik nwere ike zute site na sistemụ mkpali ngwa ngwa azaghachi.
(6) Sistemụ mkpali mmụọ na-eme ngwa ngwa nwere ike inye oke nkwụsi ike dị mkpa.Sistemu ndị dị otú ahụ, agbanyeghị, chọrọ nkwụsi ike nrịba azụ azụ maka inweta nkwụsi ike mgbe mmejọ gasịrị.Ekwesịrị ime ọmụmụ ihe zuru oke.
(7) Enwere ike igbochi mkpali onwe na voltaji nke ndị na-emepụta ihe na-ejikọta ya na grid site na ogologo ahịrị EHV site n'ịba ụba ikike nke igwe site na ịmalite mkpali na-adịghị mma na / ma ọ bụ site n'iji ndị na-eme ihe ọkụ ọkụ EHV jikọtara na-adịgide adịgide.
(8) Enwere ike ịme ndokwa na nhazi nke ndị na-emepụta ọkụ na ntọala ya iji nye nchebe megide ndị agha seismic na obere ego.
Isi Parameters nke Dehar Generators
Oke okirikiri mkpụmkpụ = 1.06
Akwụsị nkwụghachi azụ nke na-agafe agafe = 0.2
Mmetụta Flywheel = 39.5 x 106 lb ft2
Xnq/Xnd adịghị elu = 1.2
Oge nzipu: Mee-11-2021
