Chii chinonzi “kuzviparadzanisa nevamwe”?
Mune photovoltaic systems ine transformer-shoma inverter, iyo DC inoparadzaniswa kubva pasi.Mamodule ane chakaremara module yekuzviparadzanisa nevamwe, waya dzisina kuvharwa, akaremara simba optimizers, kana inverter mukati kukanganisa kunogona kukonzera DC ikozvino leakage pasi (PE - inodzivirira pasi).Kukanganisa kwakadaro kunonziwo kukanganisa kwekuzviparadzanisa nevamwe.
Nguva yese iyo Renac inverter inopinda maitiro ekushanda uye inotanga kuburitsa simba, kupikisa pakati pevhu uye DC ikozvino-inotakura conductors inotariswa.Iyo inverter inoratidza kukanganisa kwekuzviparadzanisa kana ichinge yaona yakazara yakasanganiswa yekuzvimiririra kuramba isingasviki 600kΩ mune imwe chikamu inverters, kana 1MΩ mumatatu echikamu inverters.
Ko kukanganisa kwekuzviparadzanisa kunoitika sei?
1. Mumamiriro ekunze ane hunyoro, nhamba yezviitiko zvinosanganisira masisitimu ane kukanganisa kwekuzviparadzanisa nevamwe inowedzera.Kutsvaga kukanganisa kwakadaro kunogoneka chete panguva yazvinoitika.Kazhinji pachava nekukanganisa kwekuzviparadzanisa mangwanani iyo dzimwe nguva inonyangarika panongopera mwando.Mune zvimwe zviitiko, zvakaoma kufunga kuti chii chinokonzera kukanganisa kwekuzviparadzanisa nevamwe.Nekudaro, inogona kazhinji kuiswa pasi kune shoddy yekuisa basa.
2. Kana kudzivirirwa pawiring kuchikanganiswa panguva yekukodzera, pfupi pfupi inogona kuitika pakati peDC uye PE (AC).Iyi ndiyo yatinoti kukanganisa kwekuzviparadzanisa nevamwe.Kunze kwedambudziko nekudzivirira kwetambo, kukanganisa kwekuzviparadzanisa nevamwe kunogona kukonzerwa nekunyorova kana kubatana kwakashata mubhokisi rejunction resolar.
Iyo yekukanganisa meseji inoonekwa pane inverter skrini ndeye "kuzviparadzanisa kukanganisa".Nokuda kwezvikonzero zvekuchengetedza, chero bedzi kukanganisa uku kuripo, inverter haingashanduri chero simba sezvo panogona kunge kune hupenyu hunotyisidzira huripo pane conductive zvikamu zvegadziriro.
Chero bedzi kune imwe chete yemagetsi yekubatanidza pakati peDC nePE, hapana njodzi yekukurumidza sezvo hurongwa husina kuvharwa uye hapana ikozvino inogona kufamba nayo.Zvakadaro, gara uchichenjerera nekuti kune njodzi:
1. Yechipiri pfupi-circuit kupasi yakaitika PE (2) kugadzira pfupi-circuit ikozvino kuburikidza nemamodules uye wiring.Izvi zvichawedzera njodzi yemoto.
2. Kubata ma modules kunogona kutungamirira kukukuvara kwakanyanya mumuviri.
2. Kuongororwa
Kutsvaga kukanganisa kwekuzviparadzanisa nevamwe
1. Dzima AC connection.
2. Edzai uye nyorai ye-open-circuit voltage yetambo dzose.
3. Bvisa PE (AC pasi) uye chero pasi kubva kune inverter.Siya DC yakabatana.
-Red LED inovhenekera kumusoro kuratidza kukanganisa
-Isolation kukanganisa meseji haisisiri kuratidzwa nekuti inverter haichakwanise kutora kuverenga pakati peDC neAC.
4. Bvisa DC wiring dzose asi chengetedza DC+ neDC- kubva kune imwe neimwe tambo pamwechete.
5. Shandisa DC voltmeter kuyera voltage pakati pe (AC) PE neDC (+) uye pakati pe (AC) PE neDC - uye nyora zvinyorwa zvose.
6. Iwe uchaona kuti imwe kana yakawanda kuverenga haisi kuratidza 0 Volt (Kutanga, kuverenga kunoratidza kuvhurika redunhu voltage, zvino inodonha ku0);tambo idzi dzine kukanganisa kwekuzviparadzanisa nevamwe.Iwo ma voltages akayerwa anogona kubatsira kuronda dambudziko.
Semuyenzaniso:
Tambo ine 9 solar panels Uoc = 300 V
PE uye +DC (V1) = 200V (= modules 1, 2, 3, 4, 5, 6,)
PE uye -DC (V2) = 100V (= modules 7, 8, 9,)
Mhosva iyi ichave iri pakati pemodule 6 ne7.
KUCHENJERA!
Kubata nhengo dzisina kuvharidzirwa dzetambo kana furemu zvinogona kukonzera kukuvara kwakanyanya.Shandisa giya rekuchengetedza rakakodzera uye midziyo yekuyeresa yakachengeteka
7. kana tambo dzose dzakayerwa zvakanaka, uye inverter ichiri kuitika kukanganisa "kukanganisa kwekuzviparadzanisa", inverter hardware dambudziko.Dana rubatsiro rwehunyanzvi kuti upe chinotsiva.
3. Mhedziso
"Kukanganisa kwekuzviparadzanisa nevamwe" ndiro dambudziko riri padivi resolar (dambudziko shoma remagetsi), kunyanya nekuda kwekunyorova kwemamiriro ekunze, matambudziko ekubatanidza solar panel, mvura mubhokisi rejunction, solar panel kana tambo kuchembera.