I roto i te pūnaha photovoltaic (PV), ko te hiko e whakaputaina ana ka whakamahia nuitia hei whakakaha i ngā kawenga. Ina nui ake te whakaputanga i te kawenga e hiahiatia ana, ka rere te hiko taikaha ki roto i te whatunga hiko, ka hanga he "au whakamuri." Ko ngā ture whatunga hiko e aukati ana i te rere whakamuri kore whakaaetia, ā, ka taea e te whāngai hiko kore whakamana te hua o ngā whiu. Mō ngā kaupapa PV i hangaia mō te whakamahi-ake me te kore whāngai whatunga hiko, he mea nui te tiaki ārai-rere whakamuri kia tutuki ai te mana motuhake pūngao pumau.
He aha te Ārai-Rere-muri?
I roto i te pūnaha PV, ka whakaputahia e ngā kōwae rā te iahiko tika (DC), ka hurihia hei iahiko tauutuutu (AC) e te inverter hei tuku i ngā kawenga ā-rohe. Mēnā ka nui ake te whakaputanga i te whakamahinga, ka hoki te hiko toenga ki te whatunga hiko, ka puta he rerenga whakamuri. Ka taea e ngā pūnaha me te mahi ārai-rerenga whakamuri te whakarerekē i te putanga o te inverter kia tino pau te hiko i whakaputaina e ngā kawenga ā-rohe, kia kore ai e uru te hiko nui ki te whatunga hiko.
He aha me tāuta ai te Anti-Backflow?
Ko ngā take matua mō te tāuta i te ārai-rerenga whakamuri ko:
1. Ngā Here Kaupapahere Whatunga:I ētahi rohe, ka āraia e ngā here, ngā kaupapa here rānei o te whatunga hiko te whāngai hiko ki roto i te whatunga hiko. Mēnā ka kore e whakaaetia te rere whakamuri, ka pāngia pea koe e ngā whiu.
2. Ngā Herenga Hononga Whatunga:He tino kaha te here o te whatunga hiko ki te nui o te hiko ka taea te whakauru ki roto. Mēnā ka nui rawa atu ēnei here, kāore he mana whakahaere, ka raru pea te pumau o te whatunga hiko.
3. Te Mātāpono Whakamahi-ā-Iho:Ko ngā pūnaha PV i hangaia mō te whakamahi whaiaro e aro nui ana ki te whakapaunga kawenga ā-rohe. Me ārai te hiko taikaha kei uru ki te whatunga mā te whakamahi i ngā taputapu ārai-rerenga whakamuri.
Te Mātāpono Mahi o te Ārai-Rere-muri
Ko ngā pūnaha ārai-rerenga-hoki he tikanga kei roto he mita ārai-rerenga-hoki me te whakawhiti iahiko (CT) kua tāutahia ki te raina matua. Ka inehia e ēnei wāhanga te mana wā-tūturu me te rere iahiko. Ina kitea te iahiko whakamuri, ka tukuna e te mita ngā raraunga rere whakamuri ki te inverter mā te whakawhitiwhiti RS485. Ka whakautu te inverter i roto i ngā hēkona, ka whakaitihia te mana putanga kia tata kore ai te rere o te iahiko ki te whatunga hiko.
Ngā Otinga Ārai-Rere-muri
He rerekē ngā whirihoranga e wātea ana hei whakatutuki i ngā āhuatanga rerekē:
1. Otinga Pūnaha Ārai-Rere-Hoki-Wāhanga-Kotahi
· Ngā taputapu e hiahiatia ana: he kaitahuri here-pūnaha, he mita ārai-rerenga whakamuri, me te taura whakawhitiwhiti kōrero.
· He pai mō ngā pūnaha PV kāinga iti.
2. Otinga Pūnaha Ārai-Rere-Muri-Wāhanga-Toru
· Mō ngā pūnaha kāinga iti-mana, ka taea te hono tika i ngā mita DC anti-backflow ki ngā pito putanga AC o te inverter.
· Mō ngā pūnaha mana-teitei, ka kitea e ngā whakawhiti hiko CT te iahiko i runga i te pūwāhi hononga whatunga. Ka whakapūtātia te putanga CT ka tukuna ki roto i te mita ārai-whakamuri mō te ine tika i te mana.
3. Otinga Pūnaha Ārai-Rere-Muri Maha-Whakahuri
· He maha ngā kaitahuri e honoa ana mā roto i ngā atanga whakawhitiwhiti kōrero ki tētahi pūrakau raraunga.
· He pai rawa atu tēnei otinga mō ngā tatūnga nui, he nui ake te kaha me te kaha ake o ngā mahi.
Whakarāpopototanga
Ka aro atu ngā otinga ārai-rerenga-hoki ki ngā whakaritenga kaupapa here "hono-pūnaha engari kāore e whāngai-mai" o ngā rohe motuhake. Ka whakarei ake i te pumau o te pūnaha, ka whakapai ake i te haumaru o te pūnaha, ka arotau i te whai huatanga o te pūngao, ā, ka urutau ki ngā hangarau me ngā kaupapa here e whanake haere ana. Mā te whakamahi i ngā pūnaha ārai-rerenga-hoki kua whakaritea, ka taea e ngā kaupapa PV te whakarite kia tutukihia te ture, te pono, me te oranga ōhanga.
