Kukosha kweMajenareta muMasisitimu eMagetsi eMadziva uye Mashandiro Aanoita
Simba remagetsi rinozivikanwa seimwe yesimba rinodzokororwa rakasimba uye rave richishandiswa kwenguva yakareba munyika dzakasiyana-siyana. Seri kwekuvimbika kwesimba remagetsi rinobva mumvura (PLTA) kune zvinhu zvinoshanda pamwe chete kuti zvitsigirane: dhamu kana nzvimbo yekupinda, mugero wemvura (penstock), turbine, jenareta, uye sisitimu yekutumira. Pakati pezvinhu izvi zvese, jenareta inoita basa rakakosha nekuti ndiyo nzvimbo iyo simba remagetsi—mhedzisiro yekutenderera kweturbine—rinoshandurwa kuita simba remagetsi rinoshanda. Pasina jenareta, simba guru remvura rinogona kungomira sekufamba kwemagetsi, kwete magetsi. Chinyorwa chino chinokurukura kukosha kwemajenareta mumasisitimu emagetsi emvura, mashandiro awo, kusanganisira zvinhu zvehunyanzvi zvinoita kuti ashande uye avimbike.
Basa reMajenareta muMasisitimu eMagetsi
Muzviteshi zvemagetsi zvinoshandisa mvura, mvura iri pakakwirira ine simba rinogona kushandiswa. Kana mvura ikayerera ichipinda muturbine ichipinda mu penstock, simba rinogona kushandiswa rinoshanduka kuita simba rekufamba. Turbine inobva yashandura simba rekufamba kwemvura kuita simba remagetsi muchimiro chekutenderera kweshaft. Padanho iri, jenareta inotora basa: kutenderera kwe turbine shaft kunoendeswa ku generator rotor kuti igadzire magetsi kuburikidza nepfungwa ye electromagnetic induction.
Majenareta haangogadziri magetsi chete, asi anova nechokwadi chekuti magetsi akagadzirwa ane hunhu hwakakodzera hwekutapurirana nekushandiswa, zvakaita semagetsi, mafrequency, uye kugadzikana kwesimba. Pachikero chemagetsi, kugadzikana uku kwakakosha pakushanda kwakachengeteka uye nemazvo kwemidziyo yemumba, michina yeindasitiri, uye masisitimu ekugovera magetsi.
Sei Majenareta Achikosha Kwazvo?
1. Kushandura Simba reMagetsi kuita Simba reMagetsi Zvinobudirira
Majenareta emazuva ano akagadzirwa kuti ashande zvakanaka. Mumafekitori makuru emagetsi emvura, kushanda zvakanaka kwejenareta kunogona kunge kwakanyanya zvekuti simba guru remagetsi returbine rinoshandurwa kuita simba remagetsi. Kushanda zvakanaka kwazvo zvinoreva kudzikira kwemari yekushandisa uye kushandiswa kwakanyanya kwesimba remagetsi emvura.
2. Kuona Hunhu hweMagetsi Akagadzirwa
Hunhu hwesimba remagetsi hahungobvi pahuwandu hwesimba (MW), asiwo pakugadzikana kwevoltage (kV), frequency (Hz), uye power factor. Majenareta anoshanda pamwe chete nemasystem ekudzora uye ekukurudzira kuchengetedza maparameter aya mukati memiganhu inogamuchirika. Kana kuchinja kwemutoro kukaitika (semuenzaniso, kushandiswa kwemagetsi kwakawedzera panguva yekumhanya kwakanyanya), majenareta anofanira kukwanisa kupindura kuti arambe aine simba rakagadzikana.
3. Inogonesa Kubatanidzwa nePower Grid
Magetsi anobva kumajenareta emagetsi anowanzo gadzirwa nemagetsi ari pakati nepakati kusvika pakakwirira, obva awedzerwa ma transformer kuti akwanise kutakurwa zvakanaka kure. Majenareta anofanirwa kuwiriraniswa negrid kuti ave nechokwadi chekuti magetsi anoenderana nefrequency uye phase. Pasina kuwiriraniswa kwakakodzera, pane njodzi yekukanganiswa kwakakomba senge kukwira kwemagetsi, kusagadzikana kwesystem, uye kunyange kukuvara kwemidziyo.
4. Kuvimbika Kwekushanda Kwenguva Refu
Zvivakwa zvemagetsi zvinogadzirwa nemvura zvinowanzogadzirwa kuti zvishande kwemakumi emakore. Majenareta chinhu chakakosha, sezvo kutadza kushanda kunogona kukonzera kuti chigadzikiso chidzime zvachose. Kunyange zvazvo kugadzirisa jenareta kuchikosha, majenareta emvura anowanzogadzirwa kuti ave akasimba: anodzivirira kupisa, anodzivirira kudedera, uye anokwanisa kushanda pasi pemitoro yakasiyana-siyana.
5. Inotsigira Kudzora Simba uye Kupindura Kwemasisitimu
Zvivakwa zvemagetsi zvinoshandisa mvura zvinozivikanwa nekugona kwazvo "kutevera mutoro", izvo zvinoita kuti zvikwanise kukurumidza kupindura kana zvinhu zvachinja. Kupindura uku kunofambiswa neturbine nejenareta. Jenareta yakanaka inogona kuchinjika nemamiriro ekushanda pasina kukanganisa sisitimu yemagetsi, zvichiita kuti zvivakwa zvemagetsi zvinoshandisa mvura zviwanzoshandiswa senzvimbo dzemagetsi dzinokwira kana kudzikamisa magetsi, kunyanya kana simba rinobva kune zvimwe zvinhu, zvakaita sezuva nemhepo, richichinja-chinja.
Zvikamu Zvikuru zveJenareta muHydroelectric Power Plant
Kazhinji, jenareta yemagetsi ine zvikamu zvakakosha zvakasiyana:
1. Rotor: Chikamu chinotenderera, chinowanzova nesimba remagineti (rinogadzirwa nemagetsi emagetsi kana magineti anogara kwenguva refu mune mamwe magadzirirwo). Rotor yakabatana zvakananga ne turbine shaft.
2. Stator: Chikamu chisina kusimba chine coils dze conductor. Apa ndipo panobva magetsi kana simba re rotor remagineti richichinja kana tichienzanisa ne stator.
3. Sisitimu yekukurudzira: Sisitimu inopa DC current kurotor (mujenareta inopindirana) kuti igadzire simba remagineti. Kukurudzira kunoita basa guru mukudzora voltage inobuda mujenareta.
4. Sisitimu yekutonhodza: Majenareta anogadzira kupisa nekuda kwekurasikirwa kwemagetsi nemakemikari. Kutonhodza kunogona kushandisa mhepo, mvura, kana hydrogen mune mamwe masisitimu.
5. Mabheringi: Tsigira shaft yerotor kuitira kuti ikwanise kutenderera zvakadzikama uye isina kukweshana kwakanyanya.
6. Sisitimu yekudzivirira nekudzora: Inosanganisira tembiricha, kudedera, magetsi, masensa emagetsi, marelay ekudzivirira, uye zvishandiso zvekuwiriranisa.
Mashandiro anoita Jenareta yeMadziva emvura
Pfungwa yekushanda kwejenareta muchigadzirwa chemagetsi emvura inotevera mutemo waFaraday wekugadzirwa kwemagetsi emagetsi: shanduko mumagetsi emagetsi "anocheka" kondakita dzinoburitsa voltage yemagetsi.
Heino mafambiro ebasa nenzira pfupi asi yakajeka:
1. Mvura Inoshandura Turbine
Mvura ine pressure inoyerera yorova mashizha e turbine (senge Francis, Pelton, kana Kaplan turbine). Turbine inozotenderera. Kumhanya kwekutenderera kunokanganiswa nekuyerera kwemvura, musoro, uye dhizaini ye turbine.
2. Turbine inotenderera rotor yejenareta.
Mubato weturbine wakabatana nejenareta rotor (zvakananga kana kuburikidza ne coupling system). Sezvo turbine ichitenderera, jenareta rotor inotendererawo nekumhanya kwakatarwa. Mujenareta inopindirana, kumhanya uku kwakabatana nefrequency yemagetsi anogadzirwa. Semuenzaniso, kuti ibudise 50 Hz, musanganiswa chaiwo wekumhanya kwekutenderera uye huwandu hwemapore emagineti zvinodiwa.
3. Rotor Magnetic Field Inokonzera Voltage muStator
Rotor inotakura simba remagineti. Sezvo rotor ichitenderera, simba remagineti rinochinja nzvimbo kana tichienzanisa nemakoiri e stator. Kuchinja uku kunogadzira magnetic flux yakasiyana-siyana mumakoiri e stator, zvichigadzira alternating current (AC). Voltage iyi inobva yatumirwa semagetsi.
4. Sisitimu yeKufadza Inodzora Voltage
Kuti voltage inobuda irambe yakasimba, majenareta anochinjana anoshandisa sisitimu yekuburitsa simba kudzora simba resimba remagineti rerotor. Kana mutoro ukawedzera uye voltage ikada kuderera, sisitimu yekuburitsa simba inogona kuwedzera simba rekuburitsa simba, kusimbisa simba remagineti uye kudzikamisa voltage.
5. Kubatanidza uye Kugovera kune Network
Jenareta isati yabatanidzwa negrid, kubuda kwayo kunofanirwa kuenderana: frequency, voltage, uye phase angle zvinofanirwa kuenderana neiyo yegrid system. Kana yangobatanidzwa, simba remagetsi rinogona kuyerera kubva kujenareta kuenda kutransformer, uye wozoenda kune network yekutumira nekuparadzira.
Mhando dzeMajenareta Anowanzo shandiswa muHydroelectric Power Plants
Zvivakwa zvakawanda zvemagetsi zvinoshandisa majenareta anoenderana nekuti akakodzera simba guru uye anobvumira kudzora voltage zvakanaka uye simba remagetsi. Kune zvirimwa zvidiki (micro-hydro), majenareta emagetsi anoshandiswawo nekuda kwekureruka kwawo uye mutengo wakaderera, kunyangwe kutonga kwawo kusingachinjike semajenareta anoenderana uye anowanzoda rutsigiro rwegrid kana ma capacitor ekugadzirisa simba remagetsi.
Matambudziko eGenerator uye Kugadzirisa
Pasinei nekusimba kwawo, majenareta achiri kusangana nematambudziko akadai sekupisa kwakanyanya, hunyoro, kudedera, uye kuchembera kwe coil insulation. Saka, kugadziriswa nguva dzose kwakadai sekuyera kusimba kwe insulation, kutarisa kusimba kwe bearing vibration, kutarisa tembiricha ye stator/rotor, uye kuongorora masisitimu ekutonhodza kwakakosha. Nzira yekuchengetedza zvakanaka inogona kudzivirira kukuvara kukuru uye kuwedzera hupenyu hwejenareta.
Mhedziso
Jenareta ndiyo musimboti wekushandurwa kwesimba mumagetsi emvura, ichishandura kutenderera kweturbine kuita magetsi akasimba, anogona kushandiswa. Basa rayo rinopfuura kungogadzira magetsi chete; inochengetedzawo kunaka kwesimba, inopindirana negrid, uye inotsigira kuvimbika kwekushanda kwenguva refu. Kuburikidza nepfungwa ye electromagnetic induction, rotor inotenderera inogadzira voltage mu stator, iyo inozogadzira sisitimu yekukurudzira nekudzora kuona kuti kubuda kunosangana nezvinodiwa. Nekugadzirwa kwakanaka uye kugadziriswa kwakakodzera, jenareta iri mumagetsi emvura inogona kuva musimboti wesimba rakachena rakavimbika remazuva ano neremangwana.
