Ungayenza Kanjani Usayizi Webhange Lebhethri Lelanga Ukuze Lilayishe Ngempela

Iziqondiso eziningi zokulinganisa zikutshela ifomula bese ume lapho. Ifomula ingxenye elula. Okukhahlameza abantu ekufakweni kwangempela yiyo yonke into ezungezile - umthamo osebenzisekayo oshintshana nekhemistri nezinga lokushisa, inverter engakwazi ukuletha ukukhuphuka kwezidingo zepompo yomthombo, noma inombolo yokuzimela ebukeka kahle ephepheni kwaze kwaba yilapho{3}}ukuguquguquka kwezinsuku ezintathu kuthulule ibhange ngesikhathi sesidlo sasemini ngosuku lwesibili.

Lo mhlahlandlela uhamba ulinganisa ibhange lebhethri ngendlela umklami wesistimu asondela ngayo kuwo: qala ngemithwalo yangempela, sebenzisa ifomula ewumongo, bese ulungisela amaqiniso onjiniyela isibalo sencwadi yokufunda esishiya ngaphandle. Ekugcineni uzobe unebanga lomthamo ungakwazi ngempela ukuthenga - hhayi nje inombolo ebhodini elimhlophe.

Kufanele Ibe Ingakanani Ibhange Lebhethri Lelanga?

Ubudlelwano bokulinganisa obuyinhloko yibo:

Umthamo osebenzisekayo odingekayo (Wh)=Ukusetshenziswa kwamandla kwansuku zonke (Wh) × Izinsuku zokuzimela

Bese uhlukanisa ngokujula okuhlosiwe kokukhishwa kwakho (i-DoD) ukuze uthole umthamo owudinga ngempela ukuwuthenga:

Umthamo omncane (Wh)=Umthamo osebenzayo odingekayo ÷ ingxenyenamba esebenzisekayo

Uma amabhethri akho elinganiselwe ngamahora-emahoreni angu-watt-emahoreni, guqulela ngokuthi:

Ah=Wh ÷ voltage yesistimu

Lokho kukunikeza indawo yokuqala evikelekayo. Okuyiguqula ibe idizayini yangempela ukubalwa kwekhemistri yebhethri,{1}}ukusebenza kahle kohambo, imikhawulo ye-inverter, imithwalo yamandla, izinga lokushisa, kanye newindi lokushajwa kabusha kwelanga. Okunye kwalesi sihloko kuyachaza ukuthi kanjani.

Inothi lefomula: eminye imihlahlandlela ibhala "ukusetshenziswa kwansuku zonke × isikhathi sokusekelayo ngamahora," okusebenza kuphela uma uphinda uhlukana. Ukusebenzisaizinsuku zokuzimelaigcina amayunithi angashintshi futhi igwema iphutha elivame kakhulu lokulinganisa esilibona kumaforamu e-DIY.

Amandla Ebhethri vs Okukhiphayo Amandla

Ngaphambi kokuthi noma iyiphi inombolo isho noma yini, kusiza ukuhlukanisa izinto ezimbili abantu abavame ukuzihlanganisa:

• Amandla (Wh noma kWh)- ukuthi ibhange ligcina amandla angakanani. Yilokhu abala amafomula osayizi.
• Amandla (W noma kW)- ukuthi lawo mandla angalethwa ngokushesha kangakanani ngesikhathi esithile. Lokhu kukhawulwa yisilinganiso C-sebhethri futhi, ngokuvamile, yi-inverter.

Ibhange elingu-10 kWh eline-inverter engu-3 kW lingasebenzisa ikhompuyutha ephathekayo izinsuku eziningi, kodwa alikwazi ukuqala iphampu yomthombo wamahhashi angu-5. Uma lowo mehluko ungajwayelekile, theumehluko phakathi kwe-kW ne-kWhkufanelekile ukuyifunda ngokushesha ngaphambi kokuthi uqhubeke - amaphutha okulinganisa ngokuvamile aqala lapha.

Amandla Okuqamba vs Amandla Asebenzisekayo

Ibhethri elingu-10 kWh cishe alilokothi likunikeze u-10 kWh wansuku zonke wamandla asebenzisekayo. Okutholayo empeleni kuncike kokuthi:

• Ukujula okuphephile kwekhemistri kokukhipha - Abakhiqizi be-LiFePO4 ngokuvamile bacacisa u-80–95% DoD wokusetshenziswa ngamabhayisikili, kuyilapho umthofu ogcwele amanzi{4}}i-asidi ngokuvamile ibanjelwa ku-50% ukuze kulondolozwe ukuphila komjikelezo.
• -uhambo oluhamba kahle - lwamasistimu e-lithium ngokuvamile angu-90–95%; ukuhola{{4}i-asidi cishe ku-80–85%
• Izinga lokushisa - amandla e-lithium ehla kumazinga okushisa aphansi, futhi ukushaja ngaphansi kwezingaqhwa ngokuvamile akuvunyelwe ngaphandle kwe-heater. Lokhu kufanelekile ukubukezwa kabanzi uma ufaka ngaphandle (Ibanga lokushisa lebhethri le-lithiumivala iminyango)
• I-Inverter{0}}yokusebenzisa yona kanye ne-BMS ngaphezulu

Beka lezi zinto ndawonye futhi "10 kWh okuzisholo" kalula kungaba ngu-7–8 kWh wamandla wangempela, asebenzisekayo nsuku zonke kusistimu ye-lithium, futhi asondele ku-4 kWh ebhange{{4}le-asidi eliholayo. Lapha kulapho ukufakwa okungaphansi kobukhulu obuncane konakala khona: usayizi wabantu ukusuka kunombolo yesitikha futhi weqe ukuncishiswa.

Isinyathelo 1

Ngaphambi kokulinganisa noma yini, nquma ukuthi ibhethri kufanele lenze ini. Izimo zokusetshenziswa ezingokoqobo zibukeka kanjena:

• Isipele esibalulekile- ifriji, izibani, i-inthanethi, izitolo ezimbalwa, mhlawumbe idivayisi yezokwelapha
• Ikhophi{0}}yasekhaya engaphelele- amasekhethi ambalwa abalulekile ngesikhathi sokuvalwa
• Ikhophi{0}}yonke yasekhaya- ithagethi enkulu kakhulu, ngokuvamile idinga ukwesekwa komshini
• Ngaphandle-kundawo yokuhlala yegridi- ukusetshenziswa kwansuku zonke kanye nesikhathi sasebusuku kanye{1}}nesimo sezulu esibi
• I-RV, iveni, isikebhe- isitoreji esiminyene semithwalo ephathwayo

Lezi zimo zinezivilophu zosayizi ezihluke kakhulu, futhi isiphi esisebenza kuwe - ngaphezu kwanoma iyiphi ifomula - enikeza impendulo yokugcina. Uma ungakanqumi ukuthi ingabe igridi-iboshiwe, ivaliwe-igridi, noma i-hybrid, leyo yindawo ongaqala ngayo ({{0}kugridi vs off-grid vs hybrid solar systemswephula umehluko).

Ukubala Ukusetshenziswa Kwamandla Kwansuku zonke

Ngomthwalo ngamunye:

Watts × amahora ngosuku=Wh ngosuku

Izinto ezimbili abasaqalayo abajwayele ukuphuthelwa lapha:

1. I-Nameplate wattage ayisona isikhathi sokusebenza.Isiqandisi esilinganiselwe ku-120 W asidwebi u-120 W ngokuqhubekayo - siyajikeleza. Ukusebenzisa i-nameplate njengomdwebo oqhubekayo kulinganisa ngokweqile nsuku zonke Wh ngo-2–3×. Ipulaki-kumitha ye-kWh esitsheni sangempela sosuku noma ezimbili inembe kakhulu.
2. Ukushintshashintsha kwesizini kubalulekile.-Iziphephetha-moya, ukushisisa isikhala, amaphampu wemithombo, nezifudumezi zamanzi zikagesi zinokuhlukahluka okukhulu kwehlobo{1}}kuya{2}}kuya ebusika. Usayizi wenyanga embi kakhulu oyikhathalelayo, hhayi isilinganiso sonyaka.

Uhlu olujwayelekile lokulayisha{0}olubalulekile lungase lubukeke kanje:

Isinyathelo sesi-2: Nquma ukuthi Zingaki Izinsuku Zokuzimela Ozidingayo

I-Autonomy iyinani lezinsuku ibhange okufanele lithwale imithwalo yakho ngokufaka okuncane noma okungenayo i-solar. Okuhlosiwe okujwayelekile:

• 0.5 usuku (ubusuku kuphela)- igridi{1}}isistimu eboshiwe enelanga lasemini elisusa imithwalo eminingi
• 1 usuku- okuvamile esimweni sezulu esinelanga kanye nemiklamo{1}}egxilile eyisipele
• 2-3 izinsuku- yephulwe{1}}ezindlini zegridi ezindaweni ezinelanga elithembekile, noma izifunda ezibona ukuguquguquka ngezikhathi ezithile
• 3–{1}} izinsuku- ama-latitudes asenyakatho, imithwalo enzima yasebusika, noma amasayithi anezikhathi ezinde zokuguqubala

II-NREL PVWatts Calculatorinikeza indawo-izilinganiso ezithile zokukhiqizwa kwelanga inyanga nenyanga, futhi ukufunda okokukhiphayo{1}}kwenyanga okubi kakhulu kuvamise ukuba wusizo kakhulu kunesilinganiso sonyaka lapho unquma ukuthi kungakanani ukuzimela ozoklama.

Kukhona ukuhwebelana kwangempela-lapha. Njalo ngosuku olwengeziwe lokuzimela lwengeza izindleko nesisindo esibalulekile, futhi amabhange amakhulu nawo adinga amaqoqo elanga amakhulu ukuze awashaje phakathi namahora atholakalayo elanga. Izifaki ezivaliwe-zegridi ngokuvamile zibhanqa izinsuku ezingu-2–3 zebhethri nejeneretha esikhundleni sokulinganisa izinsuku ezingu-5+, ngenxa yokuthi ijeneretha ishibhile kunomthamo webhethri owengeziwe oshintshwayo.

Isinyathelo sesi-3: Guqula Izidingo Zamandla Uwenze Umthamo Webhethri

Ngokusetshenziswa kwansuku zonke nokuzimela kunqunywe, xhuma kumafomula:

Isitoreji esidingekayo esisebenzisekayo=Nsuku zonke Wh × izinsuku zokuzimela

Umthamo omncane=Isitoreji esisebenzisekayo esidingekayo ÷ ingxenyenamba esebenzisekayo

Ingxenye esebenzisekayo incike kumakhemikhali nokuthi ufuna ukusebenza ngokucophelela kangakanani:

• I-LiFePO4:U-80–90% uyisibalo esihle sokuhlela esisetshenziswa kakhulu ezindaweni zokuhlala; njalo qinisekisa imininingwane yomenzi
• I-AGM / umthofu-ovaliwe:ngokuvamile kuhlelwa cishe u-50%
• Umthofu{0}ogcwele i-asidi:50%, ngokulingana ngezikhathi ezithile

Isibonelo esenziwe: 3,000 Wh/ngosuku × 1.5 izinsuku zokuzimela=4,500 Wh ezisebenzisekayo. Ku-LiFePO4 ene-85% esebenzisekayo, lokho kungu-4,500 ÷ 0.85 ≈ 5,300 Wh okuzisholo. Ku-AGM ngo-50%, okuhlosiwe okufanayo ngu-9,000 Wh okuzisholo - cishe okuphindwe kabili. I-Chemistry ayiwona umbhalo waphansi; cishe isiphindaphinda esingu-2× sokuthi kufanele uthenge malini.

Iguqula i-Wh ibe ngu-Ah

Amabhethri amaningi e-lithium ahlala manje athengiswa nge-kWh, kodwa amp{0}}izilinganiso zehora zisajwayelekile kumasistimu e-12V kanye ne-24V. Ukuguqulwa yilokhu:

Ah=Wh ÷ voltage yesistimu

• 5,000 Wh ku-12V=417 Ah
• 5,000 Wh ku-24V=208 Ah
• 5,000 Wh ku-48V=104 Ah

Uma iyunithi ye-Ah ingajwayelekile,okushiwo u-Ah ebhethriniihlanganisa incazelo nokuthi ihlobana kanjani nesikhathi sokusebenza.

Isinyathelo 4: 12V vs 24V vs 48V - Khetha I-Voltage Yesistimu Elungile

I-voltage yesistimu ayiyona nje i-specpe - inquma usayizi wekhebula, izinketho ze-inverter, ukusebenza kahle, kanye nokuthi isikali sesistimu sikala kahle kangakanani.

• 12V:Ama-RV, amaveni, amagumbi amancane,-amasistimu e-inverter eyodwa angaphansi kuka-~1.5 kW. Izesekeli ezilula, ezishibhile ze-DC ziyatholakala. Ngaphezulu kuka-~2 kW womthwalo oqhubekayo, izintambo ezingu-12V ziba ugqinsi ngendlela engenzeki.
• 24V:Amakhabethe-osayizi abamaphakathi kanye namakhaya amancane-egridi afinyelela ku-3–4 kW ngokuqhubekayo. Indawo emaphakathi enengqondo lapho ama-inverter angu-48V eqina kakhulu kodwa i-12V ilinganiselwe kakhulu.
• 48V:Izinga lokulondoloza-ikhaya lonke, ama-inverter amaningi esimanje ayi-hybrid, nanoma iyiphi isistimu{1}}yegridi ebucayi. Amandla aphansi asho izintambo ezincanyana, ukusebenza kahle okuphezulu, nokuhambisana nohlu olubanzi kakhulu lwemishini.

Umthetho ojwayelekile wesithupha: uma umthwalo wakho oqhubekayo ungaphezu kuka-3 kW, okuzenzakalelayo kuya ku-48V. Ama-inverter amaningi esimanjemanje e-hybrid yokuhlala kanye{3}}ne-voltage ephezulu yebhethri ye-LFP akhiwe cishe ngo-48V noma-ibhethri eyisitaki se-voltage ephezuluama-topology ikakhulukazi ngoba i-12V kanye ne-24V azilingani ngokuhlanzekile-kumthwalo ophelele wasekhaya.

Isinyathelo sesi-5: Qondanisa iKhemistry nesicelo

Ukuqhathanisa okuthembekile, kukhishwe ukumaketha:

Ngezibalo zezindleko -zeminyaka eminingi, i-LFP iwine amasegimenti okuhlala kanye ne-C&I kule minyaka emihlanu edlule, kanye nezinhlangano ezifana ne-Umnyango Wezamandla wase-USbabhale phansi ukwehla kwezindleko okwenze i-lithium yaba yikhona okuzenzakalelayo ekufakweni okusha. Ukuze uthole ukujula kokubheka ukuthi amakhemikhali aqhathaniseka kanjani nendawo yokugcina, bhekaizinhlobo ezahlukene zebhethri zokugcina amandla.

Ukulinganisa Ngokusebenzisa Ikesi

Lawa ububanzi bokuqala bokulinganisa, hhayi amanani edizayini - isimo sezulu sakho, imithwalo, kanye nokukhetha kwakho kwe-inverter kuzosusa izinombolo kuzo zombili izinkomba.

Okuthi Usayizi Olula Ongakuthathi

Ifomula ithatha umhlaba ohlanzekile. Ukufakwa kwangempela kunemiphetho:

• Imithwalo ye-surge.Amamotho (amaphampu omthombo, ama-compressor, amayunithi e-AC) angadonsa u-3–7× amandla awo alinganiselwe umzuzwana noma emibili ekuqaleni. Ibhethri kufanele linikeze lowo wamanje, futhi isiguquli kufanele siwudlulise. Uhambo lwama-inverters angaphansi; amabhange amancane ancipha.
• Ukusebenza kahle kohambo-lokubuya.Amandla angaphakathi awekho amandla aphelile. Amasistimu e-lithium alahlekelwa cishe ngo-5–10% uhambo lokubuya{3}}; i-lead{{4}i-asidi ilahlekelwa ngu-15–20%. Uma udinga ukuphuma okungu-3 kWh, bekumele ufake u-3.3–3.6 kWh.
• Izinga lokushisa liyehla.I-LFP ilahlekelwa umthamo osebenzisekayo ngaphansi kwedigri engu-0 futhi ngokuvamile ayikwazi ukushajwa ngaphansi kwezingaqhwa ngaphandle kwe-heater yangaphakathi. Izindawo ezishisayo (35℃+) zisheshisa ukuguga kwekhalenda. Uma ukufakwa kusegaraji, i-trailer, noma ikhabethe langaphandle, lokhu kushintsha umkhawulo wakho wokulinganisa.
• Iwindi lokushajwa kabusha kwe-solar.Ibhange elingu-15 kWh elithola amahora elanga angu-3 kuphela ebusika lidinga i-PV eyanele kanye nomthamo wesilawuli sokushaja ukuze kungene lawo mandla. Ibhange elikhulu elinamalungu afanayo amancane yibhange elicwila kancane.
• Ukuhlanganisa i-AC vs DC.Izakhiwo zishintsha lapho ukulahlekelwa kwenzeka khona nokuthi yiziphi izingxenye ozidingayo. (I-AC-ihlanganiswe ne-DC{1}}ehlanganisiwe yesitoreji sebhethriihlanganisa lokhu ngokuningiliziwe.)

Umthetho osebenzisekayo: ngemva kokushaya inombolo ngefomula, engeza u-15–25% wemajini ezimo zangempela zomhlaba-ngaphandle kwalapho ufanekisele ngokusobala konke okungenhla.

Izibonelo Ezimbili Ezisebenzayo

Isibonelo sokuqala: Ikhophi yasenqolobaneni ebalulekile esimweni sezulu esipholile

Imithwalo: 2,120 Wh/ngosuku (kusuka etafuleni elingenhla). Ithagethi: usuku olungu-1 lokuzimela ngesikhathi sokuvalwa. I-Chemistry: I-LFP ku-85% iyasebenziseka.

Okudingekayo okusebenzisekayo=2,120 × 1=2,120 Wh
Okuzisholo ukuthi=2,120 ÷ 0.85 ≈ 2,500 Wh
Ngomkhawulo wangempela ongu-20%{1}}womhlaba: ~3,000 Wh (3 kWh)

Ku-48V, lokho cishe ku-62 Ah. Amabhethri amaningi e-LFP okuhlala aqala ku-5 kWh, ngakho ukuthenga okungokoqobo kuyiyunithi engu-5 kWh 48V - ekunikeza indawo yokuvala ukuphela kwesikhathi eside noma wengeze umthwalo omncane.

Isibonelo sesi-2: Kuvaliwe{1}}ikhabethe legridi

Imithwalo: 3,600 Wh/ngosuku (izibani, ifriji, ikhompuyutha ephathekayo, iphampu yamanzi, ingxubevange). Ithagethi: Izinsuku ezi-2 zokuzimela ukuze zimboze ukuguquguquka okujwayelekile. I-Chemistry: LFP ku-85%.

Okudingekayo okusebenzisekayo=3,600 × 2=7,200 Wh
Okuyisisekelo=7,200 ÷ 0.85 ≈ 8,500 Wh
Ngemajini engu-20% yokuncipha kwasebusika kanye nokukhula okuzayo: ~10,200 Wh

Ngakho-ke ibhange elingu-10 kWh 48V LFP liyimpokophelo enengqondo - futhi ekusebenzeni, izifaki eziningi zegridi{3}}zingabhanqa lokhu nejeneretha encane{4}}yezinsuku eziningi kunosayizi wezinsuku 4+ zokuzimela, ngoba ijeneretha ishibhile nge-kWh ngayinye kunamabhethri engeziwe.

Amaphutha Okulinganisa Ajwayelekile

• Ukusebenzisa i-nameplate wattage esikhundleni sokulinganiswa kokusetshenziswa kwesikhathi sokusebenza.Umthombo owodwa omkhulu wezinhlu zomthwalo omkhulu.
• Ukulinganisa ukusuka kumthamo omncane, kuziba i-DoD.Okujwayelekile ekufakweni kwe-asidi-lapho abathengi belindele u-100 Ah okusho ukuthi u-100 Ah wokusetshenziswa nsuku zonke.
• Ukukhohlwa inverter.Ibhange elikhulu ngemuva kwe-inverter engu-3 kW alisakwazi ukusebenzisa amandla angu-5 kW. Bafanise. Iinverter engakwesokudla nokumataniswa kwebhethri ukuze kusetshenziswe ekhayakuwufanele ukucabanga ngaphambi kokuthi uthenge noma iyiphi.
• Alukho uhlelo lokushajwa kabusha kwelanga.Uma i-PV yakho ingakwazi ukufaka esikhundleni sokudonsa kwansuku zonke phakathi namahora atholakalayo elanga, ukuzimela kuhlala kuphela kuze kube yilapho ibhange likhukhuleka.
• Ukulinganisa imithwalo yanamuhla kuphela.Ukushaja kwe-EV, amaphampu okushisa, nokupheka kwe-induction kuyizengezo ezivamile-zeminyaka emithathu. Shiya i-headroom.