Kungani Umthethosivivinywa Wamandla Wamakamu Ezimayini Ulimaza Kakhulu Kakhulu?
Ikamu lezimayini liyindawo evamile esetshenziswa ngaphandle kwegridi, indawo esetshenziswa kakhulu amandla amakhulu: izindawo zokulala, ama-canteens, ukukhucululwa kwendle kanye nokugcinwa kwemishini yonke ifuna ugesi ongaphazamiseki 24/7.
Isixazululo sendabuko sasinenketho eyodwa kuphela - amajeneretha edizili.
Isikweletu sikadizili sihlanganisa kabuhlungu. Izindleko zikaphethiloli ngokuvamile zibalelwa ku-60% -80% yenani eliphelele lezindleko zokuphehla amandla kadizili; ezindaweni ezikude zezimayini, amandla akhiqizwa udizili angabiza izikhathi ezi-3-4 inani likagesi wegridi.
Ngokwezibalo zeXuzhou Zm-Besta ngezicelo zezimayini: ingosi yezimayini eyodwa inesilinganiso esingu-200-400 kW, amahora angu-12-16 okusebenza nsuku zonke kanye nezigidi ezingu-0.8-2 kWh zokusetshenziswa kukagesi ngonyaka; ikamu lokwakha elingu-10,000 m² lilinganiselwa ku-50-80 kW womthwalo kanye no-15,000-29,000 kWh wokusetshenziswa kukagesi kwanyanga zonke.
Ngezindleko zokukhiqiza udizili ezilinganiselwa ku-6.71 cents/kWh, inkambu eyodwa yezimayini ingasebenzisa kusukela kumakhulu ezinkulungwane kuya ngaphezu kwesigidi samadola ase-US ku-dizili minyaka yonke - ngaphambi kokubala ngisho nomsindo, ukukhishwa kwegesi kanye nezingozi zokuthutha ethangini likaphethiloli.
Isixazululo se-solar hybrid diesel microgrid yezinkambu zezimayini (ebuye ibizwe ngokuthi i-microgrid yesizinda sezimayini) yilesi: ukunikezwa kwamandla elanga, ukugcinwa kwamandla okushefa okuphezulu, kanye namajeneretha kadizili ahlehliselwe “ekugcineni kokugcina.” Lesi sixazululo samandla ezimayini angaphandle kwegridi sizuza indawo yokubeka i-solar esikhundleni sejeneretha ye-diesel.
Ukusuka Ekwenziweni Kwegridi Yedizili kuya Ekwenziweni Kwegridi Ye-Solar Diesel Hybrid Microgrid: Amamethrikhi angukhiye asuka ku-Switchover Tests
“Ukwakhiwa kwegridi” kusho ukuthi imuphi umthombo ochaza amandla kagesi wesistimu kanye nemvamisa. Esikhathini se-diesel yonke, i-generator diesel kwaba ukuphela komthombo wokwakha igridi; ngemva kokushintshela ku-solar hybrid diesel microgrid grid-forming, i-inverter ithatha isilawuli se-voltage/frequency kuyilapho ijeneretha likadizili iyaziqalisa futhi ime njengesipele.
Ukuqhathanisa kwezobuchwepheshe kwe-Xuzhou Zm-Besta esimweni sekamu esingu-100 kW:
Isu elibalulekile lokushintsha liyalandela “okubaluleke kakhulu elanga, isithasiselo sokugcina, isipele sikadizili“: amandla elanga engeziwe agcinwa ebhethrini; ngesikhathi sezulu esiguqubele kakhulu/imvula noma lapho isitoreji se-SOC siwela ngaphansi kuka-20%, ijeneretha yedizili iqala ngokuzenzakalelayo futhi ivumelanise, ngesikhathi sokushintshwa esingu-≤10 ms sokulethwa kwamandla okungenazihibe.
ISolar Diesel Hybrid Microgrid System Diesel Savings: Kufika ku-90%
Lena inombolo abathengi abayinaka kakhulu.
Isibalo se-Xuzhou Zm-Besta (ikamu elingu-100 kW, umjikelezo weminyaka emi-5, ukusebenza okuqhubekayo kwamahora angu-24):
| Into | Isixazululo Sedizili Kuphela | Isixazululo seSolar Diesel Hybrid Microgrid |
| Izindleko zokusebenza zonyaka | USD 58,750 (udizili: USD 55,000; ukunakekelwa: USD 3,750) | I-USD 5,833.33 (i-O&M evamile: USD 1,666.67; ukunikezwa kokushintshwa kwebhethri: USD 2,777.78; udizili ophuthumayo: USD 1,388.89) |
| Ukonga konyaka | – | I-USD 52,916.67, ukwehla ngo-90.1% |
| Izindleko nge-kWh ngayinye (etholakala ekuguquleni kwe-RMB) | Cishe. 6.71 US cents/kWh | Cishe. 1.04 US cents/kWh, ukwehla ngo-84.5% |
Embonini yonkana, ukusetshenziswa kukadizili kwehle ngo-50% -90%.
Isibonelo: Ngemva kokuthi i-solar hybrid diesel microgrid yokusebenza kwezimayini zaseZimbabwe iqale ukusebenza, ukusetshenziswa kukadizili ngonyaka kwehle ngamaphesenti angaphezu kuka-90, konga cishe izigidi ezingu-USD 6.948 zezindleko zikaphethiloli ngonyaka; emayini yaseChile, i-solar hybrid diesel hybrid microgrid inqamule ukusetshenziswa kukadizili kusuka ku-980,000 wamalitha kuya ku-468,000 wamalitha ngonyaka wayo wokuqala, ukwehla ngo-52.2%.
Ukuzinza Kwesistimu: Ukuthi Ukunikezwa Amandla Okuqhubekayo okungu-99.9% Kufinyelelwa kanjani
Izinkambu zezimayini azikubekezeleli nhlobo ukucisha kukagesi. Ukuthembeka kwe-solar diesel hybrid microgrid kuncike ekwakhiweni kwezendlalelo ezinhlanu:
I-N+1 I-Redundant Architecture
Amajeneretha elanga, okugcina kanye nodizili ayabuyiselana; iphuzu elilodwa lokwehluleka alithinti ukuphakelwa kukagesi kukonke, okuhloswe ukwethembeka okungu-99.9%.
Intelligent EMS Energy Management
Ukuqapha kwesikhathi sangempela kokuphumayo kwe-solar, isitoreji se-SOC, isimo sejeneretha yokulayisha nodizili ngokuthumela okuzenzakalelayo; isekela ukuqapha okukude ngohlelo lokusebenza/ikhompyutha kanye nokusebenza okungagadiwe.
Ikhono Lokuqala Elimnyama
Ngemva kokuvalwa kwesistimu okuphelele, ingalulama ngokushesha ngokwayo ngaphandle kwanoma yimuphi umthombo wamandla wangaphandle.
I-UPS Uninterruptible Power Supply
Ihlinzeka ngokuvikeleka okungaphazamiseki kwemithwalo ebucayi ngesikhathi sokushintshwa kwamandla, iqeda ukulahleka kwedatha kanye nokuphelelwa yisikhathi kwemishini.
Ukubekezelela Isitoreji kanye Nezinsimbi
Amabhethri e-Lithium iron phosphate (LiFePO4) anempilo yomjikelezo wemijikelezo engu-5,000-8,000 kanye nokunemba kokulinganisa kwe-SOC ≤3%; ukusebenza kahle kwe-inverter ≥95% kanye nokusebenza kahle kokulandelela kwe-MPPT ≥99%; amayunithi esiteshi samandla elanga afakwe esitsheni alinganiselwe nge-IP55, asetshenziswa ukuze amelane nemimoya engu-9 uma esetshenziswa, futhi asebenza kusukela ku- -20°C kuya ku-+50°C, okuyenza ifanelekele izindawo zezimayini ezinonya.
Isibonelo semboni: i-solar diesel hybrid microgrid embonini yokucubungula insimbi yegolide eNtshonalanga Australia ithole ukutholakala okungu-98.7% phakathi nezinyanga eziyi-18 zokusebenza; i-solar diesel hybrid microgrid imvamisa ifinyelela ukuthembeka kokunikezwa okungaphezu kuka-99.9%.
Imibuzo Evame Ukubuzwa
Q1: Iluphi uhla lwamandla amakamu ezimayini i-solar I-diesel hybrid microgrid ifaneleka?
A: Amayunithi eziteshi zikagesi welanga angu-20kW–200kW amboza ukusuka ezindaweni okuhlalwa kuzo amaphrojekthi kuya ezimayini ezinkulu; Amandla ka-100-500 kW asebenza ezimayini zemigodi emikhulu evulekile, ekhiqiza cishe u-600,000 kWh ngonyaka futhi athathele indawo cishe amathani ayi-150 kadizili.
Q2: Ingabe ukushintsha kusuka kudizili kuya isitoreji selanga kubangele ukucisha kwemishini?
A: Isikhathi sethu sokushintsha ngu-≤10 ms, ngaphansi kakhulu komkhawulo lapho okokusebenza okungabonwa khona; i-UPS futhi isekela imithwalo ebalulekile, ngakho-ke akukho ukuphazamiseka kwamandla ngesikhathi sokushintshwa.
Q3: Kuthiwani ngezinsuku eziguquguqukayo noma zemvula ezilandelanayo?
A: Umthamo wesitoreji uvamise ukulinganiswa izinsuku ezingama-3-7 ezilandelanayo ezinamafu/izimvula; lapho isitoreji SOC iwela ngaphansi kuka-20% noma esimweni sezulu esibi kakhulu, ijeneretha yedizili iqala ngokuzenzakalelayo ukugcwalisa amandla.
Q4: Ingakanani ukonga udizili ongakuqinisekisa ngempela?
A: Ngokuvamile 50%–90%. Umkhawulo ophezulu wesimo esihle se-Xuzhou Zm-Besta ngu-90.1%; okwangempela kuncike ekukhanyeni kwelanga kanye nejika lokulayisha.
Q5: Kuthatha isikhathi esingakanani ukuphakela ikhonteyina amandla elanga isiteshi?
IMP: Ihlanganiswe ngaphambilini futhi yanikezwa ngaphambili efekthri, ingafakwa ukuze ikhiqize amandla esikhathini esingangehora elingu-1 ngemva kokufika esizeni. Isibonelo, isiqukathi esingamamitha angu-20 sithatha cishe amaminithi angu-80 ukuze iqembu labantu abangu-6 lifake ngokugcwele.
Q6: Ingabe uhlelo lungaphathwa ukude?
A: Yebo. I-EMS ehlakaniphile isekela ukuqapha okukude nokulawula ukuqala/ukumisa idivayisi ngohlelo lokusebenza lweselula/ikhompyutha, ivumela ukusebenza nokugcinwa okungagadiwe.
Uma uhlela isisombululo samandla ezimayini ezingaphandle kwegridi noma isistimu yamandla ekamu elikude lezindawo zezimayini, amasayithi okwakha, noma amakamu akude, siyakwamukela ukuthintana ne-Xuzhou Zm-Besta.
Chofoza ukuze uthumele umbuzo, futhi usivumele siklame isixazululo samandla ekamu lakho ngokuthi “Solar okokuqala, udizili njengesipele sokugcina”.
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