Ntchito Zogwirizana ndi PV Inverter Zimayambitsidwa

1.Maximum power point tracking (MPPT) ntchito

Maximum power point tracking (MPPT) ndiukadaulo wapakatikati wa photovoltaicinverters. Popeza mphamvu yotulutsa gawo la photovoltaic imasintha ndi mphamvu ya kuwala kwa dzuwa ndi kutentha kwa module yokha, pali malo abwino ogwiritsira ntchito, malo okwera kwambiri (MPP). Ntchito ya MPPT ndikupangitsa kuti photovoltaic module nthawi zonse igwire ntchito pafupi ndi malo okwera kwambiri, motero kukulitsa mphamvu yopangira mphamvu.

Kuti mukwaniritse MPPT, photovoltaicinverteridzazindikira nthawi zonse kusintha kwamakono ndi magetsi a photovoltaic module, ndikusintha momwe ntchito ya inverter ikuyendera malinga ndi kusintha kumeneku. Kawirikawiri, MPPT imapindula kudzera mu dera la kutembenuka kwa DC / DC, posintha chiwerengero cha ntchito ya PWM pagalimoto ya DC / DC converter, kotero kuti kutuluka kwa gawo la photovoltaic kumasungidwa nthawi zonse pafupi ndi mphamvu yaikulu.

2.Power grid monitoring ntchito

Ntchito yowunikira gridi yamagetsi imathandiziraphotovoltaic inverter kuyang'anira mkhalidwe wa gridi yamagetsi mu nthawi yeniyeni, kuphatikizapo voliyumu, mafupipafupi, gawo ndi magawo ena, kuti atsimikizire kuti kugwirizana ndi kukhazikika kwa magetsi a photovoltaic ndi gridi yamagetsi. Kupyolera mu kuwunika kwa gridi, inverter imatha kusintha zotuluka zake munthawi yeniyeni kuti igwirizane ndi kusintha kwa gridi ndikuwonetsetsa kuti mphamvu yamagetsi ikukwaniritsa zofunikira za gridi. Kuphatikiza apo, ntchito yowunikira ma gridi yamagetsi ingathandizenso oyang'anira kuti amvetsetse momwe gululi likugwirira ntchito, kuzindikira ndi kuthana ndi zovuta zomwe zingachitike munthawi yake, ndikuwonetsetsa kuti gululi likugwira ntchito mokhazikika.magetsi a photovoltaic.

3.Fault chitetezo ntchito

Photovoltaic inverter ili ndi ntchito yoteteza zolakwika zonse kuti athe kuthana ndi zovuta zosiyanasiyana zomwe zingachitike pakugwiritsa ntchito kwenikweni, kuteteza inverter yokha ndi zigawo zina za dongosolo kuti zisawonongeke. Zina mwazowopsa izi ndizo:

1. Input undervoltage and overvoltage protection:Mphamvu yolowera ikakhala yotsika kapena yokwera kuposa mitundu ina yamagetsi ovotera, inverter imayamba njira yodzitchinjiriza kuti iteteze kuwonongeka kwa chipangizocho.
2. Chitetezo chambiri:Pamene mphamvu yogwira ntchito idutsa gawo linalake lamakono ovotera, inverter imangodula dera kuti lisawonongeke kwambiri kuti lisawononge chipangizocho.
3. Kutulutsa kwachitetezo chafupipafupi:Inverter imakhala ndi chitetezo chofulumira, chomwe chimatha kudula chigawocho pakangopita nthawi yochepa, ndikuteteza zida kuti zisawonongeke.
4. Chitetezo chobwerera kumbuyo:Kulowetsako kuli kolondola ndipo ma elekitirodi olakwika asinthidwa, inverter imayamba njira yodzitetezera kuti zida zisawonongeke ndi voliyumu yakumbuyo.
5. Chitetezo champhamvu:Inverter ili ndi chipangizo chotetezera mphezi, chomwe chingateteze zipangizo ku kuwonongeka kwa mphezi mu nyengo yamphezi.
6. Chitetezo pa kutentha:Inverter imakhalanso ndi ntchito yotetezera kutentha, pamene kutentha kwa mkati mwa zipangizozo kuli kwakukulu kwambiri, kumangochepetsa mphamvu kapena kuyimitsa kuti zipangizo zisawonongeke chifukwa cha kutenthedwa.

Ntchito zoteteza zolakwikazi pamodzi zimatsimikizira kugwira ntchito mokhazikika ndi chitetezo chainverter ya dzuwa. Pogwiritsira ntchito, ntchito yoteteza zolakwika ya photovoltaic inverter ndiyofunika kwambiri kuti ipititse patsogolo kudalirika ndi kukhazikika kwa magetsi a photovoltaic.