Basebedisi ba bangata ba atisa ho tsepamisa maikutlo ho lisebelisoa tsa letsatsi kapa matla a betri ha ba qala ho kopana le lisebelisoa tsa off-grid, empa ha e le hantle, ho khetha inverter e nepahetseng hangata ho bohlokoa ho feta ho kenya lisebelisoa tse ling tse seng kae tsa letsatsi. Inverter ha e etse qeto feela ea katleho ea phetoho ea motlakase, empa e boetse e ama bophelo ba lisebelisoa tsa lapeng, phihlelo ea tšebeliso ea motlakase esita le ts'ebetso e tsitsitseng ea tsamaiso.
Sehlooho sena se tla u nka mohato ka mohato ho utloisisa hore na motlakase oa motlakase oa letsatsi ke eng, karolo ea oona tsamaisong, le mokhoa oa ho khetha e loketseng ka ho fetisisa ho latela litlhoko tsa sebele tsa lelapa. Ka nako e ts'oanang, re tla boela re fane ka mekhoa e meng ea lipalo hammoho le sebaka sa sebele sa motlakase oa ntlo, 'me re u fe litlhahiso tsa khetho ea sebele.
Hobaneng ho le bohlokoa hakaale ho khetha Off Grid Solar Inverter?
Lilemong tse 'maloa tse fetileng, palo ea basebelisi ba khethang ho theha sistimi ea phepelo ea motlakase lapeng ntle le mohala e eketsehile ka potlako. Lebaka ha le thata ho utloisisa:
Tšebeliso e fokolang ea marang-rang a matla libakeng tse hōle
Ho khaoha ha motlakase khafetsa ho ama boleng ba bophelo.
Malapa a na le tšepo ea ho fokotsa ho itšetleha ha 'ona ka motlakase oa setso.
Matšoenyeho ka ho phahama ha nako e telele ha litšenyehelo tsa matla
Kapa u batla feela ho fumana bophelo bo botala le bo laoloang haholoanyane.
Empa maemong a off-grid, u ke ke ua itšetleha ka marang-rang a matla a sechaba ho tsitsisa motlakase le maqhubu, kahoo inverter e bapala karolo ea bohlokoa:
Hase feela boikarabello ba ho fetola hona joale ka ho toba hore e be hona joale, empa hape e nka mosebetsi oa "system dispatch center".
Ha inverter e sa khethoa hantle, e tla hlaha:
✘ Lisebelisoa tsa lapeng li qala ho khoptjoa
✘ Ts'ebetso e tlase ea sistimi
✘ Bophelo ba betri bo khutsufalitsoeng
✘ Ha ho na motlakase nakong ea bohlokoa
✘ Sistimi e lula e lla kapa e senya
Ka hona, bakeng sa mosebelisi e mong le e mong ea batlang ho fumana boikemelo ba matla, ho khetha mochini o nepahetseng oa motlakase oa letsatsi ke mohato oa pele oa bohlokoa ka ho fetesisa.
Sefetoleli sa Solar sa Off-Grid ke Eng?
1. Molao-motheo oa ho sebetsa
Moko-taba oa inverter ea off-grid ke ho fetolela motlakase o tobileng (DC) oa li-module tsa letsatsi le tlhahiso ea betri hore e be alternating current (AC) e fumanehang lapeng.
Ha se "converter" feela, empa hape ke "dispatch center" ea tsamaiso eohle, e ikarabellang bakeng sa:
Laola tlhahiso ea matla a photovoltaic
Hlahisa betri
Sireletsa lisebelisoa tsa ntlo hore li se ke tsa senyeha ka mokhoa o sa tloaelehang
Output stable pure sine wave power
Netefatsa hore lelapa ha le na matla maemong a feteletseng.
2. Phapang le mefuta e meng ea li-inverters
| Ho itšetleha ka grid | Off-grid e khonahala | Mofuta oa inverter | Likarolo tse sebetsang |
| E hloka grid | × Ha ke khone | thae-thae | E fepa marang-rang feela |
| E hloka grid (e fapana ho ea ka mofuta) | ○ E fokotsehile | Hybrid | E ts'ehetsa grid-tieed & off-grid, empa ts'ebetso ea off-grid e fapana ho ea ka mofuta |
| Ha ho na grid e hlokahalang | √ Ka botlalo | Off-grid | Phepelo e ikemetseng, taolo ea betri e ikemetseng, tlhahiso e tsitsitseng e ikemetseng |
Bakeng sa malapa a batlang ho haha sistimi e hloekileng ea maemo a holimo, inverter ea letsatsi e ikemetseng ke khetho e ntle ka ho fetisisa.
Lintlha tsa bohlokoa tseo u ka li nahanang ha u khetha Inverter ea Off-Grid
1. Rated Power Output
Ena ke paramente e otlolohileng ka ho fetesisa ha u khetha ho tima grid solar inverter.
Ha matla a lekantsoeng a phahame, lisebelisoa tse ngata tsa ntlo li ka tsamaisoa ka nako e le 'ngoe.
Joang ho bala matla a hlokahalang ke lelapa?
Kopanya feela matla a lisebelisoa tsohle tsa ntlo tse ka sebelisoang ka nako e le 'ngoe.
Se latelang ke mohlala oa boemo bo tloaelehileng ba lelapa:
| Appliance | Matla (W) |
| Sehatsetsi | 150 |
| a thelevishene | 120 |
| Laptop | 80 |
| Ho hlatsoa | 500 |
| Mochine oa moea | 1200 |
| LED Lighting | 60 |
| di-pump metsi | 800 |
Litlhahiso tse akaretsang:
Tlhokahalo ea malapa = matla a kakaretso × 1.2 ntlha ea polokeho
Ka mohlala:
3000W × 1.2 ≈ 3600W inverter qala
Ka hona, matlo a mangata a ikemetseng hangata a khetha 5kW-12kW off grid solar inverters.
2. Matla a matla
Lisebelisoa tse ling tsa ntlo li hloka matla a makhetlo a 'maloa nakong ea ho qala, joalo ka:
Sehatsetsi, moea o futhumatsang moea: makhetlo a 3-7
Pompo ea metsi: 3-4 linako tse ling
Lisebelisoa tsa motlakase oa motlakase: tšusumetso e kholo hang-hang
Haeba inverter e sa tšehetse tlhoro ea ho qala, e tla:
✘ E hlolehile ho qala
✘ Alamo ea inverter
✘ Esita le ho chesa lisebelisoa tsa elektronike
Tafole e tloaelehileng ea litšupiso tsa tlhoro:
| Appliance | E lekantsoe Matla | Morekisi oa ho qala | Matla a Phahameng |
| Sesepa-moea | 1,200 W | × 5 | 6,000 W |
| Sehatsetsi | 150 W | × 3 | 450 W |
| Pompong ea metsi | 800 W | × 3 | 2,400 W |
Ka hona, inverter ea matla ea off-grid e tšoanelehang bonyane e lokela ho ba le:
Ho qala bokhoni ba makhetlo a 1 matla a lekantsoeng + 3 ~ makhetlo a 5 matla a tlhōrō
- Tšebelisano ea Battery
Hobaneng ha tšebeliso ea betri e le bohlokoa hakaale?
Hobane betri ke "sebaka sa polokelo ea matla" ea sistimi eohle e kantle ho grid.
(1)LiFePO4 vs Lead-acid
| Mofuta oa Leshala | ditjeho | Bolele ba bophelo | Botebo ba Ts'ollo | Maintenance | Recommended |
| Lead-acid/ Carbon-lead | Low | Lilemo tse 3-5 | ~50% | hlokehang | Fair |
| LiFePO₄ (Lithium Iron Phosphate) | Medium | Lilemo tse 10-15 | 80-95% | E batla e sa hloke tlhokomelo | E khothalletsoa haholo |
Bakeng sa sistimi e tsitsitseng le e sa tšoenyeheng ea off-network, LiFePO4 ke khetho e ntle ka ho fetisisa.
(2) Na e tšehetsa puisano ea BMS?
Inverter e ntle ea grid ea letsatsi e tlameha ho tšehetsa:
✔ puisano ea BMS
✔ Tšireletso ea tefiso e feteletseng le e lokolotsoeng ho feta tekano
✔ Mokhoa o bohlale oa ho tjhaja le oa ho tjhaja
Ho seng joalo, bophelo ba betri bo tla khutsufatsoa haholo.
(3) 48V vs 24V tsamaiso
Litlhahiso tse bonolo:
Sistimi e nyane ea off-grille (<3kW) → 24V
Sistimi ea lapeng (>5kW) → Khetha 48V bakeng sa polokeho le ts'ebetso e ntle haholoanyane
4. Pure Sine Wave vs Modified Wave
E tlameha ho totobatsoa hore:
Li-inverters tsa Pure Sine Wave li tlameha ho khethoa bakeng sa lits'ebetso tsa lapeng tse kantle ho grid.
Lebaka le bonolo haholo:
✔ Sireletsa lisebelisoa tsa ka tlung
✔ Sebetsa se phahameng
✔ Lerata le tlaase
✔ Lisebelisoa tsa khale tsa ka tlung (sehatsetsi/air conditioner/motor) li sebetsa ka mokhoa o tsitsitseng haholoanyane
Inverter e fetolang maqhubu e loketse feela lits'ebetso tse bonolo haholo tsa DC mme ha e lokele tšebeliso ea nako e telele ea lapeng.
5. Kopano ea Molaoli oa MPPT
Khetho e khothalelitsoeng: hybrid off-grid inverter e kopantsoeng le MPPT
Melemo e kenyelletsa:
Ho sebetsa hantle haholo (ho fihla ho 99.9%)
Sistimi e kopane haholoanyane
Ho bonolo ho kenya
Li-module tse ling tsa photovoltaic li ikamahanya le maemo a phahameng a motlakase
Ha ho na le mefuta e mengata ea motlakase ea MPPT, ho na le maemo a phahameng a ho feto-fetoha ha liphanele tsa photovoltaic ka letoto.
6. Katleho & Tšireletso Likarolo
U lokela ho ela hloko lintlha tse latelang:
Bokhoni ba ho fetolela ≥ 95% (ho boloka matla a holimo)
Tšireletso ea nako e khutšoanyane
Tšireletso ea mocheso o feteletseng
Tšireletso e fetelletseng
Tšireletso ea lehalima
Inverter ea boleng bo holimo ea letsatsi bakeng sa matlo a kantle ho grid e tla fana ka tšireletso e felletseng ho tloha ho hardware ho ea ho software.
7. Katoloso & Tšebetso e Tšoanang
Ha tlhoko ea lelapa e ntse e hola, o tla tšepa hore sistimi e ka:
✔ Tšehetsa katoloso ea bokhoni
✔ Tšehetsa mochini o bapileng
✔ Tšehetsa likarolo tse kholo tsa photovoltaic
Khetha inverter e tšehetsang mechine e tšoanang = lintlafatso tsa nako e tlang li tla boloka chelete e ngata.
Liphoso Tse Tloaelehileng Tsa ho Qoba Ha U Khetha Inverter
Ho qoba liphoso tse latelang tse tloaelehileng ho ka u thusa ho boloka litšenyehelo tse ngata:
Sheba feela matla, eseng tlhoro ea ho qala.
Betri ha e tsamaellane le inverter.
Hlokomoloha lintlha tsa MPPT
Lebala ho nahana ka katoloso ea bokhoni nakong e tlang.
Khetha inverter e theko e tlaase ntle le setifikeiti
Ho hlokomoloha ka mor'a thekiso le tšehetso ea tekheniki
Maemo a Molemo ka ho Fetisisa a Li-Inverters a Off-Grid
A latelang ke maemo a atileng haholo a ts'ebeliso ea li-inverters tsa off-grid:
RV le RV (phepelo ea motlakase e ikemetseng)
Bolulo libakeng tse hole (metse/lithaba tse se nang li-grids tsa motlakase)
Mapolasi le makhulo (ho nosetsa, ho pompa metsi, mabone)
Sehlekehleke le ntloana e ikemetseng
Morero oa nakoana oa boenjiniere ba kantle
Phepelo ea motlakase ea ts'ohanyetso ea lapeng (bekapo ea likoluoa)
Ho sa tsotellehe hore na u hokae, hafeela u batla ho "sebelisa motlakase ntle le ho sheba lifahleho tsa batho ba bang", off-grid inverter ke ea bohlokoa ho letsete la hau.
Li-inverters tse peli tse ntle ka ho fetisisa tse tsoang ho grid ea letsatsi
Lihlahisoa tse latelang li tsoa ho LZY Energy, tse loketseng litsamaiso tsa lapeng ntle le marang-rang tsa boholo bo fapaneng.
⭐ 8kW–11kW Mokhahlelo o le Mong oa Inverter ea Off-grid
Lintlha-khōlō tsa sehlahisoa
Theknoloji e tsoetseng pele ea MPPT, e sebetsang hantle ho fihla ho 99.9%.
Boholo ba ho kenya photovoltaic hona joale ke 22+22A
Output pure sine wave AC hajoale
Boima bo boholo ba ho jara mojaro ke 72kW
Ponahalo ea moralo oa indasteri, ho kenya bonolo
E tšehetsa ho fihla ho 260A ho tjhaja hona joale
Tšehetsa LiFePO4 BMS puisano
Ts'ehetsa khokahano ea nosetso ea pompo ea metsi
E loketse: libaka tsa bolulo tse ikemetseng, malapa a libakeng tse hole, le mekhoa e ikemetseng ea phepelo ea motlakase bakeng sa mapolasi.
⭐ 10–12kW ea mekhahlelo e meraro ea motlakase o tlase oa Off-grid Inverter
Lintlha-khōlō tsa sehlahisoa
Phaello ea boleng bo phahameng ba mekhahlelo e meraro e hloekileng ea sine wave
E loketse li-unit tse kholo le lisebelisoa tse matla haholo
Moralo o kopaneng, boemo bo phahameng ba boiketsetso
Tšehetsa LiFePO4 & BMS puisano
Bokhoni bo matla ba ho qala sehlohlolong
Bokhoni bo atolohang 'me bo ka kopanngoa
fihlela qeto e
Ho khetha sesebelisoa se loketseng sa grid solar ke ho khetha:
Motlakase oa malapeng o tsitsitseng haholoanyane
Lisebelisoa tsa ka tlung tsa nako e telele
Mokhoa o sireletsehileng oa matla
Mokhoa oa bophelo o ikemetseng le o laolehang
Haeba u batla inverter ea boleng bo holimo e loketseng lisebelisoa tsa lapeng ntle le marang-rang, amohela ho hlahloba leqephe la sehlahisoa sa rona kapa u ikopanye le rona ka kotloloho bakeng sa quotation.