Li-inverters tsa letsatsi tsa bolulo li nka nako e kae?

Karolong ea pele ea letoto lena, makasine ea pv e ile ea hlahlobabophelo bo atlehileng ba liphanele tsa letsatsi, tse khonang ho mamella. Karolong ena, re hlahloba li-inverter tsa letsatsi tsa bolulo ka mefuta ea tsona e fapaneng, hore na li nka nako e kae, le hore na li mamella hakae.

Inverter, sesebelisoa se fetolang matla a DC a hlahisoang ke liphanele tsa letsatsi hore e be matla a sebelisoang a AC, se ka tla ka litlhophiso tse 'maloa tse fapaneng.

Mefuta e 'meli ea mantlha ea li-inverters lits'ebetsong tsa bolulo ke li-inverters tsa likhoele le li-microinverters. Lits'ebetsong tse ling, li-inverters tsa likhoele li na le lisebelisoa tsa elektroniki tsa module-level power (MLPE) tse bitsoang DC optimizers. Li-Microinverters le li-optimizers tsa DC hangata li sebelisoa bakeng sa marulelo a nang le maemo a moriti kapa li-sub-optimal orientation (eseng ka boroa).

Lits'ebetsong moo marulelo a nang le azimuth e khethiloeng (tsepamiso ho letsatsi) le litaba tse nyane tse se nang moriti, inverter ea likhoele e ka ba tharollo e ntle.

Li-inverters tsa likhoele hangata li tla le lithapo tse nolofalitsoeng le sebaka se bohareng bakeng sa ho lokisoa habonolo ke litsebi tsa letsatsi.Ka tloaelo li theko e tlase,ho boletse Solar Reviews. Li-inverters hangata li ka bitsa 10-20% ea kakaretso ea lisebelisoa tsa letsatsi, kahoo ho khetha e nepahetseng ho bohlokoa.

Li nka nako e kae?

Le ha liphanele tsa letsatsi li ka nka lilemo tse 25 ho isa ho tse 30 kapa ho feta, li-inverters ka kakaretso li na le bophelo bo khuts'oane, ka lebaka la likarolo tsa botsofali ka potlako. Mohloli o tloaelehileng oa ho hloleha ho li-inverters ke ho roala ha electro-mechanical ho capacitor ho inverter. Li-electrolyte capacitor li na le nako e khuts'oane ea bophelo le lilemo ka potlako ho feta likarolo tse omeletseng,ho boletse Solar Harmonics.

EnergySage e boletsehore inverter e tloaelehileng ea likhoele tsa bolulo e tla nka lilemo tse ka bang 10-15, ka hona e tla hloka ho nkeloa sebaka ka nako e itseng nakong ea bophelo ba liphanele.

Li-inverters tsa likhoeleka kakaretso ba na leliwaranti tse tloaelehileng ho tloha ho lilemo tse 5-10, tse ngata tse nang le khetho ea ho atolosa ho isa ho lilemo tse 20. Likonteraka tse ling tsa letsatsi li kenyelletsa tlhokomelo ea mahala le ho shebella ka nako ea konteraka, kahoo ke bohlale ho hlahloba sena ha u khetha li-inverters.

Li-Microinverters li na le bophelo bo bolelele, EnergySage e re hangata li ka nka lilemo tse 25, nako e telele joalo ka balekane ba bona ba phanele. Roth Capital Partners e boletse hore mabitso a indasteri ea eona ka kakaretso a tlaleha ho hloleha ha li-microinverter ka sekhahla se tlase haholo ho feta li-inverters tsa likhoele, leha litšenyehelo tsa pele hangata li phahame ho li-microinverter.

Li-microinverters hangata li na le waranti e tloaelehileng ea lilemo tse 20 ho isa ho tse 25. Hoa lokela ho hlokomeloa hore le hoja li-microinverters li na le tiisetso e telele, e ntse e le theknoloji e batlang e le ncha ho tloha lilemong tse leshome tse fetileng kapa ho feta, 'me ho sa ntse ho tla bonahala hore na thepa e tla phethahatsa tšepiso ea eona ea selemo sa 20 +.

Hoa tšoana le ho li-optimizers tsa DC, tseo hangata li pentiloeng ka inverter ea likhoele e bohareng. Likarolo tsena li etselitsoe ho tšoarella lilemo tse 20-25 'me li na le waranti e lumellanang le nako eo.

Ha e le bafani ba li-inverter, lihlahisoa tse 'maloa li na le karolo e kholo ea mmaraka. United States, Enphase moetapele oa 'maraka bakeng sa li-microinverters, ha SolarEdge e etella pele ka li-inverters tsa likhoele. Tesla e ntse e etsa maqhubu sebakeng sa inverter ea likhoele tsa bolulo, e nka karolo ea 'maraka, leha ho ntse ho tla bonahala hore na ho kena 'marakeng oa Tesla ho tla ba le tšusumetso e kae, ho boletse lengolo la indasteri le tsoang ho Roth Capital Partners.

(Bala: “Li-installer tsa letsatsi tsa US li thathamisa Qcells, Enphase e le lihlahisoa tse holimo“)

Ho hloleha

Phuputso e entsoeng ke kWh Analytics e fumane hore 80% ea ho hlōleha ha mahlaseli a letsatsi ho etsahala boemong ba inverter. Ho na le lisosa tse ngata tsa sena.

Ho latela Fallon Solutions, sesosa se seng ke liphoso tsa grid. Matla a phahameng kapa a tlaase ka lebaka la phoso ea grid e ka etsa hore inverter e khaotse ho sebetsa, 'me li-circuit breaker kapa li-fuse li ka kenngoa ho sireletsa inverter ho hlōleha ha matla a phahameng.

Ka linako tse ling ho hlōleha ho ka etsahala boemong ba MLPE, moo likarolo tsa lisebelisoa tsa matla li pepesehelang mocheso o phahameng marulelong. Haeba tlhahiso e fokotsehile, e ka ba phoso ho MLPE.

Ho kenya le hona ho tlameha ho etsoa ka nepo. E le molao oa monoana, Fallon o khothalelitse hore matla a matla a letsatsi a fihle ho 133% ea matla a inverter. Haeba liphanele li sa tsamaisane hantle le inverter ea boholo bo nepahetseng, li ke ke tsa sebetsa hantle.

Tlhokomelo

Ho boloka inverter e sebetsa hantle ka nako e telele, ho joalokgothaletswaho kenya sesebelisoa sebakeng se pholileng, se omeletseng se nang le moea o mongata o potolohang. Li-inverter li lokela ho qoba libaka tse nang le khanya ea letsatsi, leha mefuta e ikhethileng ea li-inverters tsa kantle e etselitsoe ho mamella khanya ea letsatsi ho feta tse ling. Hape, lits'ebetsong tsa li-inverter tse ngata, ho bohlokoa ho etsa bonnete ba hore ho na le tumello e nepahetseng pakeng tsa inverter ka 'ngoe, e le hore ho se ke ha e-ba le phetisetso ea mocheso pakeng tsa li-inverters.

Ke mokhoa o motle ka ho fetisisa oa ho hlahloba bokantle ba inverter (haeba e fumaneha) ka kotara, ho etsa bonnete ba hore ha ho na matšoao a bonahalang a tšenyo, 'me li-vents le mapheoana a pholileng ha a na litšila le lerole.

Ho boetse ho khothaletsoa ho hlophisa tlhahlobo ka mochini o kenyang matla a letsatsi ka tumello lilemo tse ling le tse ling tse hlano. Litlhahlobo hangata li bitsa $200-$300, leha likonteraka tse ling tsa letsatsi li na le tlhokomelo ea mahala le ho beha leihlo lilemo tse 20-25. Nakong ea tlhahlobo, mohlahlobi o lokela ho hlahloba ka hare ho inverter bakeng sa matšoao a ho bola, tšenyo, kapa likokoanyana.