"Sengeza isitoreji sebhethri kuphrojekthi yethu yelanga. Uma kufanele sisebenziseI-AC coupling noma i-DC coupling?"
Impendulo iqala ngombuzo owodwa: ibhethri ixhuma kuphi ngokuhlobene ne-inverter yelanga?
Kusistimu ehlanganisiwe ye-AC-, ibhethri lixhuma ohlangothini lwe-AC{1}}ngemuva kokuthi amandla elanga ashintshiwe. Kusistimu ehlanganisiwe ye-DC-, ibhethri lixhuma ohlangothini lwe-DC, ngaphambi kokuthi amandla aguqulelwe ku-AC.
Lo mehluko uthinta inkimbinkimbi ye-retrofit, ukuguquguquka kokushaja, kanye nenani lezigaba zokuguqulwa phakathi kwesistimu ye-PV nebhethri.
Ayikho i-architecture engcono kunazo zonke. Ukukhetha okulungile kuncike ezintweni ezinhlanu: isigaba sephrojekthi, umthombo wokushaja, izidingo zokuzimela, imikhawulo yegridi, nezinhlelo zokunwetshwa.
Isebenza kanjani i-AC-Coupled BESS
Kusistimu ehlanganisiwe ye-AC{0}:
- Amaphaneli elangakhiqiza amandla e-DC.
- I-inverter ye-PV iyiguqulela amandla e-AC.
- Ibhethri ixhumeka ebhasini le-AC ngokuzinikelai-bidirectional power conversion system (PCS).
- Uhlelo lwe-PV ne-BESS kuhlangana ohlangothini lwe-AC.
Indlela yokushaja yelanga: Uhlu lwe-PV → Inverter ye-PV → ibhasi le-AC →i-PCS eqondiswa kabili→ ibhethri
Lokhu kuhlukaniswa kuvame ukwenza ukuhlanganiswa kwe-retrofit nokusebenza okuzimele kube lula. Nokho, amandla elanga adlula ezigabeni eziningi zokuguqulwa ngaphambi kokufinyelela ebhethri.
Isebenza kanjani i-DC{{0}I-BESS Ehlanganisiwe
Kusistimu ehlanganisiwe ye-DC-:
- Uhlu lwe-PV kanye nebhethri kuxhuma ngaphambi kokuthi amandla aguqulwe abe yi-AC.
- Amandla elanga angafinyelela ibhethri ohlangothini lwe-DC ngaphandle kokuthi aqale aguqulelwe ku-AC.
- Amasistimu womabili abelana noma axhumanise isigaba sokuguqulwa kwamandla.
- I-DC voltage, umthamo we-inverter, kanye nengqondo yokulawula kufanele kuhlanganiswe ohlelweni lonkana.
Indlela ye-PV: Amalungu afanayo e-PV → DC/DC noma i-MPPT → ibhasi le-DC elivamile → i-hybrid PCS noma i-inverter → ibhasi le-AC
Indlela yebhethri: Ibhethri ↔ ibhasi le-DC elivamile
Lokhu kungafushanisa i-PV-kuya{1}}kundlela yokuguqula ibhethri kanye nosekelo olunqanyuliwe{2}}lokuthola kabusha amandla ngaphansi kwezimo ezifanele. Kodwa-ke, ibhethri, i-inverter, i-DC voltage, kanye nesistimu yokulawula kufanele yakhelwe ndawonye.
Qaphela: Ibhethri le-DC Alisho Ngokuzenzakalelayo Ukuhlanganisa Kwe-DC
Wonke amabhethri agcina ugesi we-DC. Nokho, ibhethri ngokwalo alinqumi indlela yokuhlanganisa yephrojekthi.
- Isiqukathi sebhethri → i-PCS ezinikele → ibhasi le-AC: iphrojekthi ingase ihlanganiswe ne-AC-.
- I-PV nebhethri → i-DC architecture → inverter evamile: lena isistimu yesitoreji evamile ye-DC-ehlanganisiwe yelanga{1}}kanye{2}}.
Indlela yokuhlanganisa inqunywa i-architecture kagesi iyonke.
I-AC{{0}I-Coupled vs DC-Ihlanganiswe ne-BESS Ngokushesha
Iphuzu lokuxhuma lichaza ukuthi isakhiwo ngasinye sisebenza kanjani. Kuphinde kuthinte indlela isistimu ehlanganiswa ngayo, ishajwe, isetshenziswe, futhi inwetshwe ngayo. Ithebula elingezansi lifingqa umehluko omkhulu wephrojekthi{2}}yezinga.
| I-Project Factor | AC{{0}Kuhlanganiswe i-BESS | I-DC-Kuhlanganiswe i-BESS |
| Iphoyinti lokuxhuma | I-PV ne-BESS ihlangana ohlangothini lwe-AC | I-PV ne-BESS ixhumeka ohlangothini lwe-DC |
| Ukuguqulwa kwamandla | Hlukanisa i-PV inverter ne-PCS yebhethri | Isiteji se-inverter esabiwe noma esihlanganisiwe |
| I-PV retrofit ekhona | Ngokuvamile kulula ukungeza ngaphandle kokuklama kabusha uhlelo lwe-PV DC | Ingase idinge izinguquko ezakhiweni ezikhona ze-PV |
| I-PV-kuya-kumzila webhethri | Amandla elanga adlula ezigabeni eziningi zokuguqulwa | Amandla elanga angafinyelela ibhethri ngezigaba ezimbalwa zokuguqula |
| Ukushaja igridi | Ngokuvamile iguquguquka kakhulu nge-PCS yebhethri | Kuncike kakhulu ku-topology yesiguquli kanye nomklamo wokulawula |
| Kusikiwe{0}}ukuthola amandla | Kukhawulelwe ukukhishwa kwe-inverter ye-PV | Ingase ithwebule i-PV eqoshiwe ngaphansi kwezimo ezifanele |
| Ukusebenza okuzimele | I-PV ne-BESS ngokuvamile ingasebenza futhi igcinwe ngokuzimela | I-PV ne-BESS zixhunyaniswe ngokuseduze |
| Ukwandiswa kwesikhathi esizayo | Amandla e-PV, amandla e-PCS, namandla ebhethri ngokuvamile anganwetshwa ngokuhlukene | Ukwandiswa kufanele kucabangele i-DC voltage kanye nemikhawulo ye-inverter eyabiwe |
Isinyathelo 1 - Ingabe Lona Iphrojekthi Entsha Noma Uhlelo Olukhona Lwe-PV?
Indawo yokuqala iphrojekthi ingenye yezinto zokuqala ku-I-AC-ihlanganiswe ne-DC{1}}ihlanganisiweukuhlola.
Lapho I-PV Plant Isivele Isebenza
Mayelana nemboni ye-PV esebenzayo, buyekeza:
- I-PV inverterisimo kanye nempilo yesevisi esele
- Umthamo webhasi le-AC kanye ne-transformer
- I-switchgear nezilungiselelo zokuvikela
- Iphoyinti lokuxhumana (i-POI) nemikhawulo yamandla
Ukuhlanganiswa kwe-ACkuvame ukuhlolwa kuqala ngoba inverter ekhona ye-PV kanye ne-DC architecture ingahlala isendaweni. I-BESS ingase ixhumeke nge-PCS eqondiswa kabili.
Lokhu kungase kunciphise ukuklama kabusha okuseceleni kwe-PV-. Kodwa-ke, umthamo we-transformer, ukuxhumanisa ukuvikela, kanye nemikhawulo yegridi kusadinga ukuqinisekiswa.
Iphrojekthi entsha yeSolar + Storage
Iphrojekthi entsha ivumela ukuthi zombili izakhiwo zicatshangelwe kusukela ekuqaleni.
Ukuqhathanisa kokuqala kufanele kugxile ekutheni iphrojekthi izosebenzisa yini:
- Isiteji se-inverter esabiwe noma esihlanganisiwe
- Hlukanisa i-PV inverter ne-PCS yebhethri
- Ukuhlanganiswa kwebhethri ye-PV okuqinile
- Ukuzimela okukhulu kokusebenza
Isu lokushaja, izidingo zokusebenza, imikhawulo yegridi, nohlelo lokunweba kuhlolwa ngezinyathelo ezilandelayo.
Ukhiye wokuthatha:I-PV retrofits ekhona ngokuvamile inika isisindo esengeziwe ekuhlanganiseni kwe-AC. Kumaphrojekthi esitoreji elanga-kanye{2}}entsha, zombili izakhiwo kufanele zihlale zivulekile ukuze ziqhubeke nokuhlolwa.
Isinyathelo 2 - Izoba Yini Indlela Eyinhloko Yamandla?
Umbuzo olandelayo ngoI-AC coupling vs DC couplingukuhlola ukuthi amandla azofinyelela kanjani ebhethrini.
Lapho i-PV Iwumthombo Oyinhloko Wokushaja
Iphrojekthi ye-PV{0}ehamba phambili kufanele iqale iqinisekise:
- I-surplus yelanga etholakalayo noma i-inverter clipping
- IbhethriI-State of Charge (SOC)i-headroom namandla okushaja
- Imikhawulo yokuthekelisa
- Ukuthi amandla agciniwe anefasitela elibalulekile lokukhipha
Esimweni esinjalo,Ukuhlanganiswa kwe-DCifanele ukuhlolwa okuseduze. I-DC-isistimu yelanga ehlanganisiwe ingase ifinyeze i-PV-kuya{3}}kumzila wokuguqula ibhethri futhi ithwebule amandla asikiwe ngaphansi kwezimo ezifanele. Nokho, inzuzo iba khona kuphela uma ibhethri litholakala ukuze limunce lawo mandla futhi lingawakhipha kamuva ngenjongo ewusizo.
Lapho Ukushajwa Kwegridi Evumelanayo Kudingeka
Ukushaja kwegridi kungase kubaluleke kulokhu:
- Ukushefa okuphezulu
- Amandla arbitrage
- Funa impendulo
- Amasevisi egridi
Iphrojekthi kufanele futhi iqinisekise imikhawulo yokungenisa, amanani kanye nemithetho yemitha, kanyeUhlelo Lokuphatha Amandla (EMS)izidingo zokuthunyelwa.
Esimweni esinjalo,Ukuhlanganiswa kwe-ACngokuvamile inikeza ukuguquguquka okwengeziwe. I-PCS yebhethri ezinikele ivumela i-BESS ukuthi ishaje futhi ithumele okwengeziwe ngaphandle kokukhiqizwa kwe-PV.
Ukhiye wokuthatha:Umthombo wokushaja ovelele usiza ekunciphiseni ukukhetha: ukushaja kwe-PV okuqondile kuqinisa ikesi lokuhlanganisa i-DC, kuyilapho ukushaja kwegridi evumelana nezimo kuqinisa ikesi lokuhlanganisa i-AC.
Isinyathelo 3 - Ingabe i-PV ne-BESS Kufanele Zisebenze Ngokuzimela?
Umbuzo olandelayo ukuthi ingabe uhlelo lwe-PV kanye ne-BESS kufanele zisebenze njengezimpahla ezihlukene.
Lapho Ukusebenza Okuzimele Kubalulekile
Lokhu kungase kuhlanganise:
- I-PV iyaqhubeka nokusebenza ngesikhathi sokuphumula se-BESS
- Ukushaja nokuthunyelwa kwegridi ezimele
- Amashejuli okulungisa ahlukene
- Ukubamba iqhaza okuzimele kumasevisi egridi
- Ukunwetshwa okuhlukile kwe-PV, i-PCS, nomthamo webhethri
Isiqondiso sezakhiwo: Ukuhlanganisa i-AC kuvame ukunikeza ukuguquguquka okukhulu.
I-inverter ye-PV ne-PCS yebhethri zisebenzisa izindlela zokuguqula ezihlukene. Lokhu kwenza ukulawula okuzimele, ukulungiswa, kanye nokuhlukaniswa kwamaphutha kube lula ukuhlela.
Lapho Ukusebenza Okuhlanganyelwe Kwamukelekile
I-DC-isakhiwo esihlanganisiwe singacatshangelwa uma ukuhlanganiswa kwesistimu okuseduze kwamukeleka.
Ukuhlola okubalulekile kuhlanganisa:
- Umthamo we-inverter owabiwe
- Ukukhishwa kwe-PV ngesikhathi esisodwa kanye nokukhishwa kwebhethri
- Imikhawulo yamandla avamile
- Iphutha kanye nomthelela wokulungisa
- Ukutholakala kwesistimu edingekayo
Ukuhlanganisa eduze kungase kufinyeze i-PV-ku-indlela yebhethri. Kodwa-ke, i-inverter eyabiwe ingaphinda idale umkhawulo ojwayelekile wokusebenza nokutholakala.
Ukhiye wokuthatha:Ukuhlanganisa i-AC ngokuvamile kunikeza izinzuzo lapho isistimu ye-PV ne-BESS idinga ukusebenza okuzimele, ukunakekelwa, noma ukubamba iqhaza kwemakethe. Ngokuphambene, ukuhlanganisa i-DC kungase kubekwe kuqala uma izithiyo zesakhiwo esabiwe zamukeleka futhi iphrojekthi ibeka kuqala i-PV-kuya{2}}ukusebenza kahle kwebhethri kanye nezindleko eziphansi zezinto zokusebenza{3}}uma kuhlangatshezwana nezimo ezithile zedizayini.
Isinyathelo 4 - Ivumelani Ukuxhunywa Kwegridi?
Izidingo zokuxhuma igridi zithonya ngokuqondile ukukhethwa kwezakhiwo. Ngisho noma i-PV kanye nezinhlelo zokulondoloza amandla kuklanywe kahle-, iphrojekthi isengase yehluleke ukusebenza njengoba kulindelekile uma izimo zokuxhuma kwegridi zingakusekeli.
Iphoyinti lokuxhuma kanye ne-POI
Qala ngokuqinisekisa:
- I-voltage yokuxhumeka kwegridi
- Ukuthi{0}}iyadingeka i-step-up transformer
- Iphoyinti lokulinganisa nokucushwa
- Imikhawulo yokungenisa nokuthekelisa
- Ukuthi isistimu ye-PV ne-BESS yabelana nge-POI efanayo yini
Kusistimu ehlanganisiwe ye-AC-, isiguquli se-PV kanye nebhethri ye-PCS amandla omzila ngokusebenzisa izindlela ezihlukene zokuguqula ngaphambi kokuhlanganisa ohlangothini lwe-AC. Kusistimu ehlanganisiwe ye-DC{2}}ejwayelekile, ukukhiqizwa kwe-PV namandla ebhethri ahlanganiswa ebhasini le-DC futhi athunyelwe nge-inverter eyabiwe noma ehlanganisiwe.
Lo mehluko wezakhiwo ubalulekile uma i-POI iseduze nomkhawulo wayo womthamo. Ngenkathi ukwabelana nge-inverter negridi-umthamo wokuxhuma uthuthukisa izindleko{2}}ukusebenza kahle kokuhlanganisa i-DC, kungase futhi kuvimbele ukukhiqizwa kwe-PV ephezulu kanye{3}}nokugcwala kwebhethri lamandla.
Amandla we-Transformer
Umthamo we-Transformer ungenye yezingqinamba zokuqala zokuhlola i-aezohwebo nezimboni (C&I) BESSbuyisela.
I-transformer ekhona kufanele ihlolelwe:
- Umthwalo owengeziwe ngesikhathi sokushaja kwe-BESS
- Hlehlisa ukugeleza kwamandla ngesikhathi sokukhipha
- Ukusebenza ngesikhathi esisodwa kwe-PV ne-BESS
- Amandla okungenisa nawokuthekelisa adingekayo
- Amandla asele kanye nempilo yesevisi
Uma i-transformer ingakwazi ukusekela ukugeleza kwamandla okuhleliwe, iphrojekthi ingase idinge imikhawulo yokusebenza, ukuthuthukiswa kwemishini, noma ilungiselelo elihlukile lokuxhuma. Izindleko ezengeziwe, indawo yokufaka, neshejuli yephrojekthi nakho kungase kuthinte isinqumo sezakhiwo.
Ukuvikelwa kanye-Ne-Medium{0}}I-Voltage (MV) Integration
Ukwengeza i-BESS kushintsha indlela kanye nezinga lokugeleza kwamandla. Ngakho-ke ukuvikelwa okukhona kanye nohlelo lwe-MV kufanele kubuyekezwe.
Ukuhlola okubalulekile kuhlanganisa:
- I-Inverter{{0}esekelwe ephutheni{1}ezicini zamanje
- Izilungiselelo zokudlulisela kanye nokuvikela
- Ukuxhumana phakathi kwe-PV inverter ne-PCS yebhethri
- Umthamo we-switchgear we-MV okhona
- I-feeder etholakalayo noma i-switchgear bay
- Ukwehlukaniswa kwemitha nokugcinwa kokunakekelwa
Isistimu ehlanganisiwe ye-AC{0}yethula i-PCS yebhethri ehlukile kunethiwekhi ye-AC. Ukusebenzisana kwayo ne-transformer, i-PV inverter, kanye namadivayisi okuvikela akhona kufanele kuhlanganiswe.
Isistimu ehlanganisiwe ye-DC-ingase ibe nesixhumi esibonakalayo se-AC esimaphakathi. Nokho, ukuhlukaniswa kohlangothi kwe-DC-, ukuvikelwa kwe-inverter okwabiwe, kanye nemiphumela yokuhluleka evamile kusadinga{2}}ukuhlolwa okuqondile kwephrojekthi. Ayikho i-architecture esusa isidingo socwaningo lokuvikela.
Izidingo Zokusebenza Nokuxhumana
Isivumelwano sokusetshenziswa noma sokuxhumana kufanele siqinisekise:
- Ukuthi ukushajwa kwegridi kuvunyelwe yini
- Amandla aphezulu okungenisa nawokuthekelisa
- Khipha{0}izidingo zokulawula
- Ukusebenza kwegridi yezinhlangothi ezimbili
- Imithetho yokulinganisa kanye nokuxhumana
- Imvume yokuhlinzeka ngamasevisi egridi
Lezi zidingo zingashintsha ngokuqondile isu lokusebenza kanye nobubanzi bezinto zokusebenza.
Isibonelo, umkhawulo ophansi wokuthekelisa ungase ukhuphule inani lokugcina amandla e-PV asele. Ngokuphambene, ukushajwa kwegridi ekhawulelwe kungase kunciphise inani le-arbitrage yamandla noma amanye amamodi-asekelwe kugridi.
Ithiphu yephrojekthi: Cela uhlu lokuhlola lokuxhumanisa insiza kusenesikhathi ekuthuthukisweni kwephrojekthi. Ukuvikela, ukulinganisa, ukuthekelisa-ukulawula, ukuxhumana, kanye negridi{2}}izimfuneko zesevisi zingase ziguqule kokubili ububanzi bemishini kanye nesiqondiso sezakhiwo.
Ukhiye wokuthatha:Lapho izithiyo kumthamo we-POI, usayizi we-transformer, kanye nemibandela yokuxhumana iqinile, ukuhlanganisa kwe-DC kunikeza inani elihlukile ngokwabelana ngama-inverter nokunciphisa ukuxhumana kwegridi. Ngokuphambene, uma igridi-izimo zokuxhuma zivumelana nezimo futhi ukuthunyelwa okuzimele kubaluleke kakhulu, ukuhlanganisa i-AC ngokuvamile kuletha inkululeko enkulu yokusebenza.
Isinyathelo 5 - Luyini Uhlelo Lokunweba Lwesikhathi esizayo?
Isakhiwo sokuqala akufanele sisekele kuphela ububanzi bephrojekthi yamanje kodwa futhi nohlelo olulindelekile lokunwetshwa. Ngaphambi kokukhethaI-AC noma i-DC coupling, chaza lokho okungase kwande esikhathini esizayo.
Amandla Ebhethri Angeziwe Noma Amandla E-PCS Angeziwe?
Ukwengeza amandla ebhethri kwenyusa i-kWh etholakalayo futhi kungase kunwebe ubude bokukhishwa. Nokho, akuwakhulisi ngokuzenzakalelayo amandla okukhiphayo.
I-kW eyengeziwe ingadinga:
- Umthamo owengeziwe we-PCS
- Ikhono eliphezulu lebhethri lamanje
- Umthamo we-transformer kanye ne-switchgear eyengeziwe
- Isiphakeli esingeziwe noma umthamo wekhebula
- I-headroom eyanele endaweni yokuxhumana (POI)
- Ukugunyaza okubuyekeziwe kokuxhumanisa
Ngakho-ke iphrojekthi kufanele ihlukanise phakathi kokwengeza amandla, ukwengeza amandla, noma ukwengeza kokubili. Lo mehluko uthinta ngqo indlela yokwandisa.
Ukwengezwa kwe-AC
I-AC augmentation yengeza ibhulokhi entsha ye-BESS ene-PCS yayo ohlangothini lwe-AC.
Le ndlela ingase isekele ukunwetshwa okufakwe kusiteji ngokuguqulwa okuncane kwesakhiwo sokuqala se-PV DC. Uma i-transformer ne-POI ine-headroom eyanele, ibhulokhi entsha ye-BESS ingangezwa ngaphandle kokushintsha umthamo we-PCS ekhona.
Lokhu kungakwenza kube lula ukwengeza amandla ebhethri, amandla e-PCS, amabhulokhi e-BESS aphelele, noma ukuhlukanisa umthamo wokuguqula i-PV ngezigaba.
Nokho, ukunwetshwa kwe-AC-kuseceleni{1}kumthamo wezinga lesayithi. I-headroom ye-Transformer,{3}}impahla kagesi ephakathi nendawo, umthamo wesiphakeli, ukuhlanganiswa kokuvikela, ukuhlanganiswa kwe-EMS, kanye nemikhawulo yokungenisa nokuthekelisa konke kufanele kubuyekezwe.
I-AC coupling isekela ukunwetshwa kwe-modular, kodwa ayisusi igridi-yokuxhumanisa noma izingqinamba zemishini.
Ukwengezwa kwe-DC
I-DC augmentation yengeza umthamo webhethri kusakhiwo esikhona se-DC ngemuva kwe-PCS eyabiwe noma isiguquli.
Lokhu kungase kusekele ukuhlanganiswa okuseduze phakathi kwe-PV nomthamo webhethri, kodwa okokusebenza okusha kufanele kuhlale kuhambisana nesakhiwo esikhona se-DC. Ukuhlola okubalulekile kuhlanganisa:
- Ububanzi be-voltage yokusebenza kwe-DC
- Isilinganiso esiphezulu se-DC samanje
- I-headroom ye-inverter eyabiwe
- Iwindi lokusebenzisa ibhethri
- Umthamo wokuguqula i-DC/DC
- Isistimu yokuphatha ibhethri (BMS)ukuxhumana
- Lawula ingqondo nokuhambisana kwe-EMS
I-inverter eyabiwe ngokuvamile iwumkhawulo oyinhloko. Amandla ebhethri engeziwe angase andise ubude besikhathi sokuphuma, kodwa awakwazi ukukhuphula ukuphuma kwe-AC uma isiguquli sesivele silayishwe ngokugcwele.
Umehluko kukhemistri yebhethri, ukuphathwa kwe-thermal, iwindi le-voltage, noma iphrothokholi yokuxhumana ingase idinge isiguquli esengeziwe se-DC/DC noma ukuklama kabusha kwesistimu okubanzi. Lokhu kungakhuphula kokubili izindleko zephrojekthi kanye nokulahlekelwa kokuguqulwa.
Ukwandiswa kwe-PV Okuzayo
Uhlelo lwe-PV lwesikhathi esizayo kufanele luhlolwe kanye nohlelo lokunwetshwa lwe-BESS. Kusistimu ehlanganisiwe ye-AC{1}, umthamo we-PV owengeziwe ngokuvamile ungaxhunywa ngesiguquli se-PV esihlukile. Lokhu kuvamise ukuba nomthelela omncane ebhethrini elikhona kanye nokulungiselelwa kwe-PCS.
Kusistimu ehlanganisiwe ye-DC-, umthamo we-PV omusha kufanele uhlale uhambisana nalokhu okukhona:
- I-DC voltage kanye nemikhawulo yamanje
- Umthamo wokuguqula i-DC/DC
- Umthamo we-inverter owabiwe
- Lawula izilungiselelo
- I-PV kanye nokusebenza kwebhethri ngesikhathi esisodwa
Uma i-PV nomthamo webhethri kulindeleke ukuthi kunwetshwe ndawonye, ukuhlanganisa i-DC kungase kuhlale kufanelekile, inqobo nje uma i-headroom eyanele igcinwe ku-inverter eyabiwe kanye ne-DC architecture.
I-Transformer, i-POI, namandla okulawula
Kungakhathalekile ukuthi iyiphi indlela yokuhlanganisa, ukunwetshwa kungase kukhuphule ukushaja kwamandla, amandla okukhipha, kanye nenani lamadivayisi alawulwayo.
Iphrojekthi kufanele iqinisekise ukuthi:
- I-transformer ingasekela ukushaja nokukhipha amandla esikhathini esizayo
- I-POI inomthamo owanele wokungenisa nokuthekelisa
- I-EMS inokuxhumana okwanele, umthamo wedatha, namandla okulawula
- Ukuvikelwa nokugunyazwa kokuxhumana kungasekela isistimu enwetshiwe
Uma i-transformer noma i-POI isivele isisondele emkhawulweni wayo, i-architecture ingase idinge ukuthuthukiswa kwemishini, imikhawulo yokusebenza, noma{0}}ukubuyekezwa kokuxhumeka kwegridi entsha.
Ukhiye wokuthatha:Uma ukunwetshwa okuzayo kwengeza amandla ebhethri ikakhulukazi nokuguquguquka kwemodular kubalulekile, ukuhlanganisa i-AC ngokuvamile kusekela ukunwetshwa okukhuphukayo kalula. Uma i-PV yesikhathi esizayo namandla ebhethri azokhula ndawonye futhi ukusebenza kahle kokuguqulwa kuhlala kuyinto ehamba phambili, ukuhlanganisa i-DC kungase kusafaneleka lapho i-voltage ye-DC kanye nomthamo we-inverter okwabelwana ngayo kufaniswe kahle. Uma i-POI ingumkhawulo oyinhloko wokunweba, zombili izakhiwo zidinga igridi entsha-isibuyekezo sokuxhuma.
Ukufanisa Uhlaka Nezimo Zephrojekthi Ezivamile
Uma imibuzo emihlanu engenhla isiphenduliwe, isiqondiso sezakhiwo ngokuvamile siyacaca.
Nokho, umphumela awufani kuwo wonke amaphrojekthi. I-PV retrofit ekhona, uhlelo olusha lwe-C&I solar{1}}plus{2}}nohlelo lwesitoreji,iphrojekthi-yesilinganiso{1}}esendaweningamunye angase adinge indawo yokuqala ehlukile.
Ithebula elingezansi libonisa ukuthi uhlaka lusebenza kanjani kulezi zimo ezintathu ezivamile.
| Project Scenario | Iqala inkomba | Isizathu Esiyinhloko |
| I-C&I Solar Retrofit ekhona | Hlola ukuhlanganisa kwe-AC kuqala | I-inverter ekhona ye-PV ngokuvamile ingahlala isendaweni ngenkathi i-BESS yengezwa nge-PCS ezinikezele |
| I-C&l Solar +Isitoreji Esitsha | Qhathanisa zombili izakhiwo | Umklamo kufanele ulinganise ukushaja kwe-PV okuqondile, ukushaja kwegridi evumelana nezimo, ukusebenza okuzimele, nokunwetshwa okuzayo |
| I-Utility-Scale Co{1}Itholakala ku-PV + BESS | Yenza isibonelo ngazo zombili izinketho | Ukubuyiselwa kokunamathisela, imikhawulo ye-POI, umthamo we-inverter okwabelwana ngawo, isu lokuthumela, kanye nomnotho wephrojekthi kungashintsha umphumela. |
Lezi izikhombisi-ndlela, hhayi izincomo zokugcina. Umthamo we-Transformer, imikhawulo yegridi, isu lokusebenza, nokunwetshwa okuzayo kusengashintsha ukukhetha kwezakhiwo.
Ulwazi Lwephrojekthi Luyadingeka Ngaphambi Kokukhethwa Kwezakhiwo
Izinyathelo ezinhlanu{{0}zohlaka zinganciphisa isiqondiso. Nokho, isincomo sokugcina sezakhiwo sisadinga idatha ethile yephrojekthi-.
| Isigaba solwazi | Imininingwane Yokunikeza |
| Uhlobo lwephrojekthi | Iphrojekthi entsha noma i-PV retrofit ekhona |
| Isistimu ye-PV | Umthamo we-PV, isilinganiso se-DC/AC, nemodeli ye-inverter |
| Ithagethi ye-BESS | Amandla adingekayo, umthamo wamandla, nobude besikhathi sokuphuma |
| Isu lamandla | Umthombo wokushaja oyinhloko, izindlela zokusebenza, nezidingo zokwenza ikhophi yasenqolobaneni |
| Ukuxhumana kwegridi | I-voltage yegridi, i-POL, kanye nemikhawulo yokungenisa/yokuthekelisa |
| Imishini ekhona | I-Transformer, i-switchgear, isistimu yokuvikela, namandla atholakalayo |
| Imibhalo kagesi | Umdwebo owodwa okhona noma ohlongozwayo{0}}wodwa |
| Izidingo zesikhathi esizayo | Uhlelo lokunweba, izindinganiso ezisebenzayo, kanye nemigomo yesevisi-yegridi |
Le mininingwane isiza ukunquma ukuthi ingabe isiqondiso sokuqala sezakhiwo siyasebenza yini ngokobuchwepheshe. Ngaphandle kwazo, umehluko ojwayelekile phakathi kwe-AC ne-DC coupling ungachazwa, kodwa isincomo sokugcina esinomthwalo wemfanelo asinakwenziwa.
Ngaphambi kokuphothulwa kwesakhiwo, kufanele kuhlolwe imibono emithathu evamile.
Imibono Emithathu Engaholela Ekukhetheni Okungalungile
Ngisho nedatha yephrojekthi edingekayo, ukuqagela okumbalwa okujwayelekile kusengahlanekezela isinqumo sezakhiwo.
"I-DC Coupling Ihlala Isebenza Kakhudlwana"
Ukuhlanganisa i-DC kunganciphisa ukulahleka kokuguqulwa endleleni ye-PV-kuya{1}}kumzila webhethri, kodwa ukusebenza kahle okuphelele nakho kuncike kumodi yokusebenza, umkhawulo wokulinganisa, kanye nokusetshenziswa okuyisizayo. Indlela emfushane yokuguqula ayihumushi ngaso sonke isikhathi ibe inani eliphakeme lephrojekthi.
"Izingxenye Ezimbalwa Zihlala Zisho Izindleko Zephrojekthi Eziphansi"
Ukwabelana nge-inverter kungase kunciphise ukuphindwaphindwa kwemishini, kodwa izindleko eziphelele zephrojekthi futhi zihlanganisa ukuguqulwa kwe-DC/DC, ukuvikelwa, izilawuli, ukugunyazwa, kanye nezindleko zokuyilungisa zesikhathi esizayo. Isibalo semishini yokuqala ephansi singadala imikhawulo eqinile yokusebenza noma yokunweba kamuva.
"I-AC Coupling Yenzelwe Amaphrojekthi Akhona Elanga Kuphela"
Ukuhlanganisa i-AC kuvamile ekubuyiseleni kabusha, kodwa kungase futhi kunikeze amaphrojekthi amasha adinga ukushajwa kwegridi evumelana nezimo, ukuthunyelwa okuzimele, noma ukunwetshwa kwemojuli. Isiteji sephrojekthi siyingxenye eyodwa kweziningi{1}}asinqumi isakhiwo sodwa.
Ukuqhathanisa kukhombisa ukuthi akukho zakhiwo okufanele zikhethwe kunzuzo eyodwa.
Ukuhlanganisa i-AC ngokuvamile kunikeza ukuzimela okwengeziwe kanye ne-modularity. I-DC coupling ingafinyeza i-PV-ku{2}}indlela yebhethri futhi isebenzise kangcono amandla asikiwe noma umthamo wokuxhumana okwabelwana ngawo.
Ukukhetha okulungile kuvela esithombeni esigcwele sephrojekthi: indawo yokuqala, indlela yamandla, izidingo zokusebenza, ukuxhumeka kwegridi, nohlelo lokunwetshwa. Lezi zici ezinhlanu kufanele zihlolwe ndawonye ngaphambi kokuphothulwa kwezakhiwo.
Uhlela Iphrojekthi Yelanga + Yesitoreji?
Yabelana ngezidingo zakho zephrojekthiI-Polinovel'sithimba lobuchwepheshe.