I-Wind Turbine Nacelle Nezingxenye Zayo
Ezinhlelweni zesimanje ze-wind turbine, i-nacelle “iyindlu yenjini” etholakala phezulu kombhoshongo, ngqo ngemuva kwe-rotor (blade). Ngenkathi umbhoshongo usebenza njengesakhiwo esisekelayo futhi i-rotor ibamba amandla omoya, i-nacelle iyisikhungo sokuguqulwa kwamandla: yilapho amandla omshini avela ekujikelezeni kwe-rotor eguqulwa khona abe amandla kagesi, alawulwe, aqashwe, futhi agcinwe ukuqinisekisa ukusebenza okuphephile kuzo zonke izimo zezulu. Ngenxa yendima yayo ebalulekile, ukwakheka kwe-nacelle kumele kucabangele ukusebenza kahle, ukuqina, ukulula kokugcinwa, kanye nokuphepha.
Ngokubukeka, i-nacelle ifana nebhokisi elide noma i-capsule evikela izingxenye zangaphakathi emvuleni, othulini, ekugqwaleni, kanye nokushintshashintsha kwezinga lokushisa. Inezinhlelo zokudlulisa, amajeneretha, izinhlelo zokulawula, ukupholisa, ukugcoba, kanye namadivayisi okuphepha. Lesi sihloko sixoxa ngomsebenzi we-nacelle kanye nezingxenye ezibalulekile, okuhlanganisa nendlela ingxenye ngayinye esebenza ngayo iyonke.
Umsebenzi Oyinhloko we-Nacelle
Umsebenzi we-nacelle ungafingqwa ezindaweni ezine eziyinhloko. Okokuqala, ivikela izingxenye endaweni engaphandle—imimoya enamandla, amanzi anosawoti (kuma-turbine asogwini), kanye nezinhlayiya zothuli kungasheshisa ukuguguleka uma kungalashwa. Okwesibili, isekela futhi ivumelanise izingxenye zemishini ezifana nama-shaft, ama-gearbox, kanye nama-generator ukuqinisekisa ukuhambisana okufanele nokunciphisa ukudlidliza. Okwesithathu, ihlanganisa izinhlelo zokulawula nokuphepha, kusukela ezinzwa zomoya kuya ezindleleni zokubhuleka eziphuthumayo. Okwesine, yenza kube lula ukusebenza nokugcinwa, njengoba izingxenye ezibalulekile zigcinwa endaweni eyodwa yokusebenza enokufinyelela okulinganiselwe (iminyango yesevisi, ama-crane angaphakathi, imigwaqo yokuhlola).
Isembozo se-Nacelle kanye nesakhiwo se-Bedplate
Ingxenye ebonakala kakhulu ye-nacelle yisembozo se-nacelle (noma indlu). Ngokuvamile yenziwe ngezinto ezihlanganisiwe noma izinsimbi ezilula eziqinile, ezingagqwali, futhi eziguquguqukayo. Lesi sembozo asigcini nje ngokusebenza kahle kodwa futhi sinciphisa umthelela wesimo sezulu futhi sisiza ukuqondisa ukuhamba komoya ukuze kuvinjelwe ukuphazamiseka okukhulu.
Ngaphakathi kukhona ipuleti lombhede—uhlaka noma “iphansi lesakhiwo” elisebenza njengesisekelo sokufaka izingxenye ezisindayo njengebhokisi lamagiya kanye nejenereyitha. Ipuleti lombhede kumele liqine kakhulu ukuze kuncishiswe ukuphambuka futhi kugcinwe ukuhambisana kwezingxenye, njengoba ngisho nokungalungi okuncane kungaholela ekudlidlizeni okukhulu, ukushisa ngokweqile, kanye nokwehluleka kwamabhere.
Ihabhu leRotor, iShaft Eyinhloko, kanye namaBearings Ayinhloko
Amandla omoya abanjwa yizinsika bese edluliselwa ku-rotor hub. I-hub ixhumanisa izinsika ohlelweni olujikelezayo bese idlulisela i-torque ku-main shaft. I-main shaft bese ithwala amandla omshini iye ku-gearbox noma ngqo ku-generator, kuye ngomklamo we-turbine.
Umgodi oyinhloko usekelwa ama-bearings amakhulu. Lawa ma-bearings abalulekile ngoba amelana nomthwalo ohlangene: umthwalo we-axial (eduze komgodi) kanye nomthwalo we-radial (oqondile kumgodi) ngenxa yokushaywa umoya kanye nesisindo se-rotor. Ikhwalithi yama-bearings kanye nohlelo lwawo lokugcoba kubalulekile empilweni yokusebenza kwe-turbine, njengoba ukwehluleka kwama-bearings kuyimbangela enkulu yokungasebenzi kahle okubizayo.
Ibhokisi Legiya (Kuma-Turbine Ohlobo Olulungiselelwe)
Ama-wind turbine amaningi asebenzisa ama-gearbox ukwandisa isivinini sokujikeleza esihamba kancane se-rotor siye esivinini esiphezulu esidingwa yi-generator. Isibonelo, i-rotor ingase ijikeleze ngama-rpm ayishumi, kuyilapho i-generator isebenza kahle kakhulu ngama-rpm angamakhulu kuya kwayizinkulungwane (kuye ngohlobo).
Ama-gearbox ayizingxenye eziyinkimbinkimbi ezisebenza ngaphansi kwemithwalo ehlukahlukene neguquguqukayo. Ngakho-ke, ama-gearbox adinga:
– Uhlelo lokugcoba oluthembekile lokuvimbela ukuguguleka kwegiya,
– Uhlelo lokupholisa ukususa ukushisa,
- Ukuhlunga uwoyela ukuze kugcinwe ukuhlanzeka koketshezi,
– Ukuqapha ukudlidliza ukuze kutholakale umonakalo kusenesikhathi (isib. ukubhoboka kwamazinyo).
Amanye ama-turbine esimanje asebenzisa umklamo wokushayela ngqo (ngaphandle kwebhokisi lamagiya) ukunciphisa ubunzima, kodwa lokhu ngokuvamile kudinga ijeneretha enobubanzi obukhulu kanye nesistimu yamagnet ehlukile.
Ijenereyitha: Iguqula Amandla Omshini Abe Amandla Kagesi
Ijenereyitha iyinhliziyo yokuguqulwa kwamandla kagesi. Lapho umgodi (ngokuqondile noma ngebhokisi legiya) uphendula i-rotor yejenereyitha, insimu yamagnetic kanye nama-coil kukhiqiza ugesi. Amajenereyitha e-wind turbine eza ngezinhlobo ezahlukene, okuhlanganisa:
– Ijeneretha Yokungenisa Ephindwe Kabili (i-DFIG) kuma-turbine amaningi axhunywe kuma-gearbox,
– Ijeneretha Ehlala Njalo Ye-Magnet Synchronous (i-PMSG) evame ukusetshenziswa ngqo noma kuma-turbine anamuhla asebenza kahle kakhulu.
Amajeneretha akhiqiza ukushisa, ngakho-ke adinga ukupholisa (umoya noma uketshezi) kanye nokuqapha izinga lokushisa. Ukuqina kwamandla okukhipha kanye nemvamisa akuxhomekile kuphela kujeneretha kodwa futhi nakuhlelo lokuguqula amandla kagesi.
I-Power Converter kanye nokuguqulwa kwamandla
Njengoba isivinini somoya sishintshashintsha, ukujikeleza kwe-rotor kanye nezici zikagesi zejeneretha nakho kuyashintsha. Ukuze ilethe ugesi kugridi ngezinga lekhwalithi, i-turbine isebenzisa i-power converter (i-inverter/rectifier kanye ne-power electronics control). I-converter ilawula:
- i-voltage,
- imvamisa,
- amandla,
– futhi uqinisekise ukuvumelanisa negridi.
Kwezinye izimo, i-nacelle iqukethe ne-transformer (ikakhulukazi emiklamo ethile), nakuba kuma-turbine amaningi i-transformer eyinhloko ibekwa phansi kombhoshongo noma kwenye ipulatifomu ngenxa yezizathu zesisindo kanye nokufinyelela kokugcinwa.
Uhlelo Lokuquma: Ukubhekana Nomoya
Ukuze i-rotor ibambe amandla aphezulu, i-nacelle kumele ibhekane nomoya. Lo msebenzi wenziwa uhlelo lwe-yaw, oluqukethe:
– i-yaw drive (injini ye-yaw drive),
– igiya lokuyaw/igiya lendandatho (igiya elikhulu),
– ukuthwala i-yaw (ukuthwala i-yaw ngobukhulu obukhulu),
– kanye nokulawula ukubhonga okusekelwe kunzwa yomoya.
Uhlelo lwe-yaw lusebenza ngokulungisa kancane kancane isikhundla se-nacelle. Ukunyakaza okuvamile noma okunolaka kungandisa ukuguguleka. Ngakho-ke, ama-algorithm okulawula i-yaw ngokuvamile akhetha ukuvumelana phakathi "kokubhekana nomoya ngokunembe ngangokunokwenzeka" kanye "nokunciphisa imithwalo yemishini."
Uhlelo Lokuphonsa: Ukusetha I-Angle Ye-Blade
Ngaphakathi kwehabhu futhi kuhlanganiswe nezilawuli ezise-nacelle kukhona uhlelo lwe-pitch, olulawula i-engeli yama-blade e-turbine. I-pitch isebenza ku:
- thuthukisa ukubanjwa kwamandla ngesivinini somoya ophakathi,
– nciphisa amandla emimoyeni enamandla ukuze ungadluli isilinganiso,
– futhi wenze “ukusika izimpaphe” (ukujikeleza ama-blade ukuze unciphise amandla omoya) ezimweni eziphuthumayo.
Ama-actuator e-pitch angaba ngamanzi noma ngogesi. Izinhlelo ze-pitch zivame ukuba ne-backup yamandla (isb., ibhethri) ukugcina ama-blade ebekwe ngokuphephile uma kwenzeka ugesi uphela.
Amabhuleki (Uhlelo Lokubhuleka) kanye Nokuphepha
Ama-turbine omoya adinga uhlelo lokubhuleka kokubili ezimweni zokusebenza kanye nezimo eziphuthumayo. Ngokuvamile, kunezingqimba ezimbili:
1. Ukubhuleka kwe-Aerodynamic ngokusebenzisa iphimbo (ukujikeleza ama-blade ukuze amandla omoya ehle kakhulu).
2. Amabhuleki emishini (amabhuleki ediski) kuma-axle anesivinini esikhulu noma izingxenye ezithile ku-drivetrain ukuze amise ukujikeleza ngesikhathi sokulungiswa noma izimo eziphuthumayo.
Ngaphezu kwalokho, i-nacelle ifakwe amadivayisi ahlukahlukene okuphepha njengezinzwa zesivinini esikhulu, ukuvikelwa kokushisa okweqile, izinhlelo zokucima umlilo (ikakhulukazi kuma-turbine amakhulu), kanye nezinqubo zokuvala ngokuzenzakalelayo.
Izinhlelo Zokupholisa Nokungenisa Umoya
Izingxenye ezifana nejenereyitha, i-converter, kanye ne-gearbox zikhiqiza ukushisa. Ngakho-ke, i-nacelle inesistimu yokupholisa equkethe:
- umshini wokushintshanisa ukushisa,
- ifeni yokungenisa umoya,
- isiqandisi samafutha sebhokisi legiya,
– noma uhlelo lokupholisa oluwuketshezi lwezingxenye zikagesi ezisebenza ngamandla.
Ukulawulwa komswakama kubalulekile futhi ukuvimbela ukuminyana okungalimaza izinto zikagesi futhi kusheshise ukugqwala.
Ukugcotshwa, Ama-Hydraulics, kanye Nokuhlunga
Ukuqinisekisa izinhlelo zemishini ezihlala isikhathi eside, i-nacelle inohlelo lokugcoba oluphakathi—ikakhulukazi lwegiya lamagiya, amabheringi, kanye nezinye izindawo zokungqubuzana. Eminye imiklamo ifaka nezinhlelo ze-hydraulic ze-pitch, amabhuleki, noma ezinye izi-actuator. Ukuhlunga uwoyela kubalulekile, njengoba ukungcoliswa yizinhlayiya ezincane kungasheshisa ukuguguleka kwegiya kanye namabheringi.
Izinzwa, i-SCADA, kanye nokuqapha isimo
Ama-turbine esimanje cishe ahlala ehlonyiswe nge-SCADA (Supervisory Control and Data Acquisition) ukuze aqaphe ukusebenza kanye nokusebenza kokulawula kude. I-nacelle iqukethe izinzwa ezahlukahlukene, njenge:
– i-anemometer (isivinini somoya) kanye ne-wind vane (isiqondiso somoya),
– izinzwa zokudlidliza kubhokisi lamagiya kanye nejenereyitha,
- izinzwa zokushisa kukawoyela kanye nokucindezela,
– inzwa yamandla kagesi/i-voltage,
– kanye nohlelo lokuthola ukwehluleka kusenesikhathi (ukuqapha isimo).
Idatha evela ezinzwa isiza opharetha ukuthi benze ukulungiswa okubikezelayo: ukulungiswa kwenziwa ngaphambi kokuba kwenzeke umonakalo omkhulu, okunciphisa isikhathi sokungasebenzi kanye nezindleko.
Ukufinyelela Ekulungiseni: I-Crane Yangaphakathi kanye Nomzila Wokuhlola
Ngenxa yokuphakama kwayo, ukufinyelela ekunakekelweni kuyinselele. Ama-Nacelles avame ukuhlonyiswa ngama-crane angaphakathi noma izindawo zokuphakamisa ukuze ahambise izingxenye ezithile. Izindlela zokuhlola, izibani, amaphaneli okuphepha, kanye nokuhlelwa kwekhebula namapayipi kuklanyelwe ukuvumela ochwepheshe ukuthi basebenze ngokuphepha nangokusebenza kahle.
Isiphetho
I-nacelle ye-turbine yomoya iyisikhungo sokusebenza, ehlanganisa izinhlelo zemishini, zikagesi, zokulawula, kanye nezokuphepha zibe yiyunithi eyodwa, evikelwe. Ihlanganisa ipuleti lombhede lesakhiwo, umgodi oyinhloko nama-bearings, i-gearbox (kuma-turbine aqondisiwe), i-generator, i-power converter, izinhlelo ze-yaw kanye ne-pitch, amabhuleki, ukupholisa, ukugcoba, kanye nochungechunge lwezinzwa ezixhunywe ku-SCADA. Ukusebenza kwe-turbine kunqunywa kakhulu ukuthembeka kwezingxenye ze-nacelle kanye nekhwalithi yokuhlanganiswa kwazo. Uma i-nacelle iklanywa, iqashwa, futhi igcinwa kangcono, kulapho ukusebenza kahle kwamandla, ukuphepha kokusebenza, kanye nokuphila kwenkonzo ye-turbine yomoya kukhuphuka khona.
Uma ungathanda, ngingenza inguqulo yalesi sihloko ngezihlokwana zobuchwepheshe ezengeziwe, ezigcwele amadayagramu okugeleza kwamandla (umoya → i-rotor → i-drivetrain → i-generator → i-converter → igridi) noma ngigxile ekuqhathaniseni i-direct drive vs. gearbox.
