Kodi MPPT ndi MPPT hybrid solar inverter ndi chiyani?

Pogwiritsira ntchito magetsi a photovoltaic, nthawi zonse takhala tikuyembekeza kuti tiwonjezere kutembenuka kwa mphamvu ya kuwala kukhala mphamvu yamagetsi kuti tipitirize kugwira ntchito bwino. Kotero, tingatani kuti tiwonjezere mphamvu zopangira mphamvu zamagetsi zamagetsi za photovoltaic?

Lero, tiyeni tikambirane za chinthu chofunikira chomwe chimakhudza mphamvu yopanga mphamvu yamagetsi amagetsi a photovoltaic - ukadaulo wotsogola wamphamvu kwambiri, womwe ndizomwe timazitcha nthawi zambiri.Zithunzi za MPPT.

Dongosolo la Maximum Power Point Tracking (MPPT) ndi njira yamagetsi yomwe imathandizira kuti gulu la photovoltaic lizitulutsa mphamvu zambiri zamagetsi posintha momwe gawo lamagetsi limagwirira ntchito. Ikhoza kusunga bwino panopa yopangidwa ndi gulu la dzuwa mu batri, ndipo imatha kuthetsa bwino mphamvu zogwiritsira ntchito m'nyumba ndi mafakitale m'madera akutali ndi malo oyendera alendo omwe sangathe kutsekedwa ndi ma grids ochiritsira mphamvu, popanda kuwononga chilengedwe.

Woyang'anira MPPT amatha kuzindikira magetsi opangidwa ndi solar mu nthawi yeniyeni ndikutsata ma voliyumu apamwamba kwambiri komanso mtengo wapano (VI) kuti dongosololi lizitha kulipiritsa batire ndi mphamvu yayikulu kwambiri. Kugwiritsidwa ntchito mu machitidwe a dzuwa a photovoltaic, kugwirizanitsa ntchito ya mapanelo a dzuwa, mabatire, ndi katundu ndi ubongo wa photovoltaic system.

Udindo wa MPPT

Ntchito ya MPPT ikhoza kufotokozedwa mu chiganizo chimodzi: mphamvu yotulutsa selo ya photovoltaic ikugwirizana ndi mphamvu yogwira ntchito ya wolamulira wa MPPT. Pokhapokha ngati ikugwira ntchito pamagetsi oyenera kwambiri pomwe mphamvu yake yotulutsa imatha kukhala ndi mtengo wapadera kwambiri.

Chifukwa ma cell a dzuwa amakhudzidwa ndi zinthu zakunja monga kuwala kwamphamvu ndi chilengedwe, mphamvu zawo zotulutsa zimasintha, ndipo kuwala kwamphamvu kumapanga magetsi ambiri. The inverter ndi MPPT pazipita mphamvu kutsatira ndi kugwiritsa ntchito mokwanira ma cell a dzuwa ndi kuwapangitsa kuthamanga pa pazipita mphamvu mfundo. Ndiko kunena kuti, pansi pa chikhalidwe cha kuwala kwa dzuwa kosalekeza, mphamvu yotulutsa mphamvu pambuyo pa MPPT idzakhala yapamwamba kuposa ya MPPT.

Ulamuliro wa MPPT nthawi zambiri umatheka kudzera mugawo lotembenuzidwa la DC/DC, ma cell a photovoltaic amalumikizidwa ndi katundu kudzera mudera la DC/DC, ndipo chipangizo chowongolera mphamvu kwambiri chimakhala nthawi zonse.

Dziwani zakusintha kwaposachedwa komanso mphamvu yamagetsi amtundu wa photovoltaic, ndipo sinthani kayendedwe ka ntchito ya chizindikiro choyendetsa PWM cha chosinthira cha DC/DC molingana ndi kusintha.

Kwa mabwalo ozungulira, pamene kukana kwa katundu kuli kofanana ndi kukana kwamkati kwa magetsi, magetsi amakhala ndi mphamvu zowonjezera mphamvu. Ngakhale ma cell a photovoltaic ndi DC / DC otembenuza ma circuits ali osagwirizana kwambiri, amatha kuonedwa ngati mabwalo ozungulira mu nthawi yochepa kwambiri. Choncho, malinga ngati kukana kofanana kwa DC-DC kutembenuka kwa dera kumasinthidwa kuti nthawi zonse kumakhala kofanana ndi kukana kwa mkati kwa selo la photovoltaic, kutulutsa kwakukulu kwa selo la photovoltaic kungapezeke, ndi MPPT ya photovoltaic cell. zikhozanso kukwaniritsidwa.

Linear, komabe kwakanthawi kochepa kwambiri, imatha kuwonedwa ngati yozungulira. Choncho, malinga ngati kukana kofanana kwa DC-DC kutembenuka kwa dera kumasinthidwa kotero kuti nthawi zonse kumakhala kofanana ndi photovoltaic.

Kukaniza kwamkati kwa batri kumatha kuzindikira kutulutsa kwakukulu kwa cell ya photovoltaic komanso kuzindikira MPPT ya cell photovoltaic.

Kugwiritsa ntchito MPPT

Ponena za udindo wa MPPT, anthu ambiri adzakhala ndi mafunso: Popeza MPPT ndi yofunika kwambiri, n’chifukwa chiyani sitingathe kuiwona mwachindunji?

Kwenikweni, MPPT imaphatikizidwa mu inverter. Kutenga microinverter mwachitsanzo, wolamulira wa MPPT wa module-level amatsata mphamvu yaikulu ya gawo lililonse la PV payekha. Izi zikutanthauza kuti ngakhale gawo la photovoltaic silingagwire ntchito, silingakhudze mphamvu ya mphamvu ya ma modules ena. Mwachitsanzo, mu dongosolo lonse la photovoltaic, ngati gawo limodzi latsekedwa ndi 50% ya kuwala kwa dzuwa, olamulira amphamvu kwambiri omwe amawatsata ma modules ena adzapitirizabe kukhala ndi mphamvu zambiri zopangira.

Ngati muli ndi chidwi ndiMPPT hybrid solar inverter, kulandiridwa kuti mulankhule ndi wopanga photovoltaic Kuwala kwaWerengani zambiri.