Ukuphucula ukusebenza kakuhle ngokusebenzisa i-BESS kunye ne-Solar Power Coupling

Impendulo ekhawulezileyo

Ukudityaniswa kwendawo yokugcina amandla ebhetri (i-BESS) kunye namandla elanga kwindawo yeyona ndlela isebenzayo kakhulu kwindawo yokutshaja ye-EV yanamhlanje kuba ihlasela ilahleko kuyo yonke inyathelo lekhonkco lamandla. Iiphaneli zelanga ziguqula ukukhanya kwelanga kube yi-DC ngokusebenza kakuhle kwemodyuli engama-20-24%; inkqubo yokulandelela indawo yamandla ephezulu (i-MPPT) ibuyisela oko kungafunekiyo kunye nokungafaniyo; kwaye ibhetri iyasusa ukuveliswa kwemfuno yokutshaja ukuze kungabikho kilowatt-hour ethunyelwa ngaphandle ngamaxabiso athengiswayo okanye incitshiswe. Inkqubo ye-PV+BESS edibeneyo kakuhle idla ngokuphakamisa ixabiso lokuveliswa kwelanga ngama-30-50% xa kuthelekiswa ne-PV kuphela, inciphisa ukuthengwa kwamandla egridi ngama-40-70%, kwaye ivumela ukusebenza kwe-zero-emission ngexesha leeyure zasemini. Esi sikhokelo sichaza indlela yokwenza ubungakanani, ukudibanisa, kunye nokusebenzisa ilanga kunye nendawo yokugcina ukuze kube nokusebenza okuphezulu kohambo oluya nokubuya.

Izinto ezibalulekileyo ekufuneka ziqwalaselwe

• Ukudibanisa i-DC ye-PV kunye ne-BESS kuthintela ukulahleka kokuguqulwa kabini, kuphucula ukusebenza kakuhle kwenkqubo ngamanqaku eepesenti ezi-2–4.
• Ibhetri ifunxa ubushushu obugqithisileyo belanga kwaye itshintshela ixesha ukuya kwiincopho zokutshaja, isusa ukuncitshiswa kunye nokuthunyelwa ngaphandle kwexabiso eliphantsi.
• Iimodyuli ze-MPPT ezinee-voltage ezibanzi zibuyisela i-5–10% yemveliso ye-PV elahlekileyo ngenxa yomthunzi ongaphelelanga kunye nokungafani kweepaneli.
• Ubungakanani obuchanekileyo bebhetri ukusuka kwilanga ukuya kwi-energy bugcina indawo yokugcina ijikeleziswa izihlandlo ezi-1 ukuya kwezi-1.5 ngemini, nto leyo ekhusela ubomi bomjikelo kunye noqoqosho.
• Ii-BESS hubs ezisebenza ngamandla elanga zinokusebenza njengeziqithi ezingenakukhupha umbane, zisusa iijenereyitha zedizili kwiindawo ezikude nezithintelweyo.

Kutheni i-PV + i-BESS iyeyona Pairing isebenzayo

Ukuveliswa kwelanga kunye nemfuno yokutshaja kwe-EV ngokwemvelo ayilungelelaniswanga kakuhle. Ilanga lifikelela phezulu emini, kodwa imfuno yokutshaja ifikelela phezulu kusasa kwaye ukusuka emva kwemini ukuya ngokuhlwa. Indawo ye-PV kuphela ijongene nokukhetha okungathandekiyo: ukuthumela ngaphandle intsalela yasemini ngamaxabiso athengiswayo, okanye ukuyinciphisa ngokupheleleyo. I-BESS iyayisusa ukhetho—ibhetri iyayifunxa intsalela ize iyikhuphe kanye xa iitshaja ziyifuna.

Inzuzo yokusebenza kakuhle inamacandelo amathathu:

1. Inzuzo yokusetyenziswa: yonke i-kilowatt-hour yelanga isetyenziswa kwindawo yokuthengisa okanye ngexabiso lerhafu endaweni yokuba ithunyelwe ngaphandle ngexabiso lokuthengisa okanye inqunyulwe. Oku kudla ngokuba nengeniso engaphezulu ngama-30–50% nge-kWh nganye evelisiweyo. 2.Inzuzo yokuguqulwa: kwisakhiwo esidityaniswe yi-DC, i-solar DC ingena ngqo kwi-DC bus yebhetri okanye kwi-DC bus yetshaja, ithintela uhambo oluya nokubuya lwe-AC. Ukususa ukuguqulwa kwe-inverter ezimbini kubuyisela iipesenti ezi-2-4 zokusebenza kakuhle kwenkqubo. 3.Imfuno yegridi iyanda: indawo ayingenisi kakhulu kwigridi, kwaye ezinye izinto ezithunyelwayo zithe tyaba, zinciphisa iindleko zamandla kunye neendleko zemfuno.

Kumqhubi othelekisa ihabhu ye-PV+BESS kunye nendawo yokutshaja ngokukhawuleza yegridi kuphela, ixabiso elilinganisiweyo lamandla aziswayo lenkqubo edibeneyo lihlala liphantsi ngama-20–35% kwiminyaka elishumi.

Ukuhamba kwamandla: Ukusuka kwiPhaneli ukuya kwiBhetri ukuya kwiSithuthi

Ukuqonda uyilo lokudibanisa kucacisa apho ukusebenza kakuhle kuphumelelwa okanye kulahleka khona. Kukho iitopoloji ezimbini eziphambili:

Ukudibanisa i-AC— Ii-inverters ze-PV zondla i-AC bus; i-inverter yebhetri eyahlukileyo itshaja ibhetri. Ilula kwaye isetyenziswa ngendlela efanayo, kodwa amandla elanga alahlekelwa yi-PV-inverter, emva koko ilahleko yebhetri-inverter: ukusebenza kakuhle kwe-ror-trip malunga ne-85-88%.

Ukudibanisa kweDC— Ii-PV arrays ziqhagamshela kwibhasi ye-DC yebhetri nge-MPPT converter; enye i-PCS ephakathi iphatha utshintshiselwano lwegridi. Amandla elanga angena kwibhetri ngoguqulelo olunye, kwaye ukusebenza kakuhle kokubuyela nokubuya kuphucuka ukuya kuthi ga kwi-90–93%. Xa iitshaja zinokutsala i-DC ngqo kwibhasi ekwabelwana ngayo, olunye utshintsho luyasuswa.

Uyilo oludibeneyo lwe-DC yiyo loo nto iimveliso ze-solar-BESS ezidibeneyo ziphumelela ekusetyenzisweni kwezorhwebo. Umahluko wokusebenza kakuhle uhambelana yonke imihla: kwisivuno selanga se-1 MWh semihla ngemihla, iipesenti ezi-3-5 zelahleko yokuguqulwa egciniweyo yi-30-50 kWh ngosuku—malunga ne-11-18 MWh yamandla anokubuyiselwa ngonyaka.

Isikhululo sokutshaja se-BESS EV selanga esingu-200 kWh sanamhlanje (https://www.midapower.com/news/200kwh-solar-bess-ev-charging-station-for-zero-emission-sites/) sibonisa uthotho olupheleleyo: uluhlu lwe-PV → imodyuli ye-MPPT → ibhetri Ibhasi ye-DC → itshaja ekhawulezayo ye-DC → ibhetri yesithuthi. Inqanaba ngalinye lenzelwe ilahleko encinci, kwaye i-EMS ilungelelanisa ukuhamba ukuze i-solar ihlale ikhonza umthwalo kuqala, iintlawulo ezingaphezulu kwi-BESS, kwaye ukungeniswa kwegridi kuncitshiswe.

Ukulinganisa ii-Solar Arrays ngokuchasene nomthamo we-BESS

Iimpazamo zobungakanani—i-PV enkulu kakhulu okanye indawo yokugcina enkulu kakhulu—zitshabalalisa ngokuthe cwaka uqoqosho lweenkqubo ezidibeneyo. Umlinganiselo olawulayo yimveliso yelanga yemihla ngemihla xa kuthelekiswa nomthamo webhetri kunye nemfuno yendawo:

Imithetho emithathu yokulinganisa igcina ukuhlanganiswa kusebenza kakuhle:

1. Ubungakanani be-PV ukuya kwi-40–80% yamandla onyaka kwindawo, hayi nge-100%. Ukhuseleko olupheleleyo lunyanzela ibhetri ukuba igqithise kwaye ingasebenzi ixesha elide; ukhuseleko oluyinxenye luphucula ixabiso lelanga nge-watt nganye efakiweyo. 2.Yenza ubungakanani beBESS bube ngumjikelo omnye opheleleyo ngosukuintsalela yelanga elindelekileyo. Ibhetri ejikeleziswa kube kanye ngemini kubunzulu obuyi-80% bokukhupha ibhetri ifikelela kwimilinganiselo yayo epheleleyo yobomi bomjikelo; iibhetri ezincinci zijikeleza kakhulu, kwaye ezinkulu kakhulu zonakala ubomi bekhalenda ngaphandle kokusetyenziswa. 3.Tshatisa uluhlu lokufaka lwe-MPPT kwifestile yokusebenza yokwenyani ye-array.Imodyuli ye-MPPT ene-wide-voltage ifumana amandla phantsi komthunzi ongaphelelanga, inkungu yasekuseni, kunye nokuguga kwephaneli okuye kwasuswa yiyunithi yomgama omxinwa.

Ukuzuza ngokuSebenza kakuhle: i-MPPT, ukuguqulwa, kunye nokulahlekelwa okulindileyo

Ukusebenza kakuhle kuyaphumelela kwiinkcukacha, kwaye iindidi ezintathu zokulahlekelwa zilawula iinkqubo ezidibeneyo:

Ukulahleka kwe-MPPT.Ukufiphalisa inxalenye yomtya wephaneli enye kunokunciphisa imveliso yeqela lonke nge-10–20% ngaphandle kokulungiswa komtya ngamnye. Iimodyuli zamandla ze-MPPT ezisebenzayo kakhulu—njengeemodyuli ze-MIDA ezingama-30–60 kW MPPT ezisetyenziswa kwiinkqubo zokutshaja zelanga—zilandelela indawo yamandla ephezulu yomtya ngamnye ngokuzimeleyo, zibuyisela i-5–10% yesivuno sonyaka kwiindawo zokwenyani ezine-shading okanye ukungalingani kwemodyuli.

Ukuguqulwa kunye nokulahlekelwa kokulinda.Yonke i-inverter isebenza kakubi xa umthwalo uphantsi. Indawo ye-BESS egcina i-PCS yayo ingasebenzi kumthwalo we-2–5% ubusuku bonke ichitha ii-kilowatt-hours ubusuku bonke. Iinkqubo zanamhlanje zisebenzisa iindlela zokulinda eziphantsi kakhulu (

Ulawulo lobushushu.Ukupholisa ibhetri kusebenzisa amandla; iipakethe zebhetri ezipholisiweyo ngolwelo zigcina amaqondo obushushu afanelekileyo eeseli ngenxalenye encinci yamandla efeni kwiindlela ezipholisiweyo ngomoya. Kwiindawo ezishushu zemozulu, ukupholisa ulwelo kunokonga i-3-5% yamandla enkqubo yebhetri xa kuthelekiswa nokupholisa ngomoya ngokunyanzelwa ngelixa kwandisa ubomi beseli.

Xa zizonke, ezi ndlela ziphakamisa inkqubo edibeneyo ukusuka “kwi-nameplate 90% efficiency” ukuya “kwi-operational 93–96% efficiency”—umahluko phakathi [kwe-2 MWh solar-powered solar-powered BESS charging station] (https://www.midapower.com/2mwh-960kw-bess-charging-station-megawatt-ev-charger-solar-battery-storage-system-product/) enikezela ngamandla ayo alinganisiweyo kwaye enye ilahlekelwa ngamandla athile rhoqo kwiiveki ezimbini.

Iindawo Ezingenakukhupha Umoya Ongcolileyo kunye Nokufuduselwa KweDizili

Inzuzo ebalulekileyo yokudibanisa kukuzimela kokusebenza. Kwiindawo ezikude, ezithintelwe yigridi, okanye ezisabela kwintlekele, ihabhu yelanga + iBESS ithatha indawo yejenereyitha yedizili—impendulo eyimbali yokuba “akukho gridi apha.”

Uthelekiso lucacile. Ijenereyitha yedizili kwindawo yenkonzo yendlela itshisa iilitha ezi-3–4 ngeyure xa umthwalo ungaphelelanga, ikhupha i-2.5–3 kg ye-CO2 ngelitha, kwaye ifuna uthutho lwepetroli. Ihabhu yelanga+BESS ene-150–400 kWp ye-PV kunye ne-500 kWh–2 MWh yokugcina inika inkonzo efanayo yokutshaja ngaphandle kokukhupha umbane kwindawo, ukusebenza buthule, kunye nexabiso eliphantsi elikufutshane no-zero xa sele ifakiwe.

Ii-hubs ezisebenzayo zibika iziphumo ezintathu ezilinganisekayo:

• Ukonga amafutha kunye nokugcinwa kwezinto zokuhamba ukusuka kwi-$15,000 ukuya kwi-$60,000 ngonyakangokuchasene nokusebenza kwedizili okulinganayo;
• Ukunciphisa ikhabhoni ngeetoni ezingama-40–120 ze-CO2 ngonyakangokwendawo nganye, ekwafanelekela iinkqubo zekhredithi yekhabhoni kwezinye iimarike;
• Ixesha lokusebenza lingaphezulu kwe-95%kwiishedyuli zokutshaja ezilawulwa emini, kunye negridi okanye ijenereyitha yokuxhasa egubungela iincopho ezinzulu zangokuhlwa.

Uyilo lwe [500 kWh BESS charger station] (https://www.midapower.com/news/500kwh-containerized-bess-charging-station-for-grid-constrained-areas/)—ibhetri enezikhongozeli enegalelo lelanga elidityanisiweyo—lulo olusisiseko lwezakhiwo ezinjalo, kuba luthunyelwa njengeyunithi enye kwaye lusebenza ngaphandle kwemisebenzi yokwakha.

Isiphelo

Ilanga kunye nokugcinwa kwezinto azizongezo zokuphucula indawo yokutshaja; ziyinkqubo edibeneyo esebenza kakuhle kakhulu kunezo zixa zeendawo zayo. I-DC coupling isusa ilahleko zokuguqulwa, i-MPPT ibuyisela ilahleko zomthunzi, kwaye ibhetri iguqula intsalela yelanga yasemini ibe yingeniso yokutshaja ngokuhlwa. Ilinganiswe ngokuchanekileyo—i-PV kwi-40–80% yamandla esayithi, i-BESS iqhuba kanye ngemini, iimodyuli ze-MPPT ezibanzi—i-BESS hub esebenza ngelanga inciphisa ukuthengwa kwegridi nge-40–70%, isusa idizili kwiindawo ezikude, kwaye ihambisa itshaja ye-zero-emission apho ibaluleke kakhulu. Kubaqhubi, umbuzo wokusebenza awusekho “ngaba ilanga lisebenza nendawo yokugcina?” kodwa “yeyiphi i-coupling architecture ebamba uninzi lwe-kilowatt-hour nganye?”

FAQ

1. Yintoni umahluko phakathi kokudibanisa i-AC kunye ne-DC kwi-solar + BESS?Kwi-AC coupling, i-PV kunye nebhetri nganye ine-inverter yayo kwi-AC bus, ilahlekelwa ngamanqaku ama-2-4 okusebenza kakuhle kohambo oluya nokubuya. Kwi-DC coupling, i-solar yondla i-DC bus yebhetri nge-MPPT converter, ithintela ukuguqulwa kabini kwaye iphucule ukusebenza kakuhle ukuya kwi-90-93%.

2. Ndingadibanisa ingakanani i-solar nendawo yokutshaja ye-BESS?Ubungakanani be-PV ukuya kwi-40–80% yamandla asetyenziswa yisiza ngonyaka. Ugutyungelwe ngokupheleleyo lunyanzela ukuba ibhetri ibiza kakhulu; ugqungelwe ngokuyinxenye kwandisa ixabiso lelanga nge-watt nganye efakiweyo ngelixa kugcinwa ujikelezo lwebhetri ngokufanelekileyo.

3. I-BESS edibeneyo kufuneka ijolise kwimijikelo emingaphi ngosuku?Malunga nomjikelo omnye opheleleyo ngosuku kubunzulu obuyi-80% bokukhupha. Elo zinga lifikelela kubomi bomjikelo olinganisiweyo webhetri kwaye ligcina uqoqosho lusempilweni; ukuqhuba ibhetri kakhulu kuyayonakalisa iphakheji, kwaye ukuqhuba ibhetri kancinci kuchitha imali.

4. Ngaba indawo ye-BESS esebenza ngelanga ingasebenza ngokupheleleyo ngaphandle kwegridi?Ewe, nge-PV eyaneleyo, indawo yokugcina, kunye nemfuno elinganisiweyo emini. Iindawo ezixutyiweyo zigcina uqhagamshelo lwegridi ukuze zikwazi ukumelana nobunzima kunye neencopho ezinzulu zangokuhlwa; iziqithi ezicocekileyo zihlala zongeza ijenereyitha yokuxhasa kwiimeko ezigqithisileyo.

5. Ibaluleke kangakanani i-MPPT kwinkqubo edibeneyo?Kwi-arrays ezinombala okanye ezingangqinelaniyo, i-MPPT ezimeleyo nge-string ifumana i-5–10% ye-PV yonyaka—amandla ebenokulahleka ngenye indlela. Kwi-arrays ezicocekileyo nezingenamthunzi inzuzo iyancipha, yiyo loo nto uphando lwesiza lubalulekile.

6. Yintoni enokuyenza ukuze ndilindele ukusebenza kakuhle kwisikhululo sokutshaja se-solar-BESS sanamhlanje?Ukusebenza kakuhle kokujikeleza okujikelezayo kwe-93–96% kunokwenzeka nge-DC coupling, ii-liquid-cooled battery packs, kunye ne-low-standby PCS—xa kuthelekiswa ne-85–88% kwii-basic AC-coupled stacks.

7. Ngaba ukuhlanganiswa kwelanga kuyayinciphisa imirhumo yemfuno yendawo?Ewe. Ukuveliswa kwamandla elanga kunciphisa ukungeniswa kwegridi ngexesha lokuphelelwa kwamaxabiso aphezulu, kwaye i-BESS iyawunciphisa umlinganiselo oseleyo wemizuzu eli-15—ihlasela zombini izixhobo zamandla kunye neemfuno zebhili ngaxeshanye.