Ama-inverter we-Photovoltaic anamazinga wezobuchwepheshe aqinile afana nabakwa-inverters abajwayelekile. Noma yimuphi-inverter kufanele ahlangabezane nezinkomba ezilandelayo zobuchwepheshe okufanele zibhekwe njengomkhiqizo ofanelekayo.
1. Ukukhipha ugesi wokuqina
Ohlelweni lwe-Photovoltaic, amandla kagesi akhiqizwe yiseli yelanga kuqala agcinwe yibhethri, abese aguqulwe abe ngu-220v noma u-380v aguqule njengamanje in inverter. Kodwa-ke, ibhethri lithinteka ngenxa yamacala alo nangokuphuma, kanye nokukhishwa kwalo okukhishwa kuye kwahluka kakhulu. Isibonelo, ngebhethri elinama-12v angu-12v, inani layo le-voltage lingahluka phakathi kuka-10.8 no-14.4v (lidlula leli banga lingadala ukulimala kwebhethri). Okwe-inverter efanelekile, lapho i-voltage yokufaka eshintsha ngaphakathi kwaleli banga, ukuguqulwa kwe-voltage eqinile-state ampput akufanele kwedlule ku-
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Okwe-Sine Wave Inverters, ukuphambuka okuphezulu okuvumelekile kwe-waveform (noma okuqukethwe kwe-harmonic) kufanele kuchazwe. Imvamisa kuvezwa njenge-waveform ephelele yokuhlanekezela kwamandla akhiqizwayo, inani laso akufanele lidlule ku-5% (okuphuma kwesigaba esisodwa kuvumela i-10%). Kusukela okukhishwayo okuphezulu kwe-harmonic okungu-inverter kukhiqize ukulahleka okungeziwe njenge-Eddy yamanje kumthwalo ongathandeki, uma ukuhlukaniswa kwe-waveform kwe-inverter kukhulu kakhulu, kungadala ukuphepha kwemishini kagesi bese kuthinta kakhulu uhlelo. ukusebenza kahle.
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Emithambimi kubandakanya ama-motors, njengemishini yokuwasha, iziqandisi, njll. Imvamisa yokuphuma kufanele ibe yinani elizinzile, imvamisa imvamisa yamandla 50hz, futhi ukuphambuka kwalo kufanele kube ngaphakathi ± 1% ngaphansi kwezimo ezijwayelekile zokusebenza.
4. Layisha i-Power Factor
Bhala ikhono le-inverter elizothwala imithwalo enobuhlakani noma ebabazekayo. Isici samandla esilayi somthwalo we-Sine Wave Inverter ngu-0,7 kuye ku-0.9, kanye nenani elilinganiselwe lingu-0.9. Endabeni yamandla athile womthwalo, uma isici samandla esise-Inverter siphansi, umthamo odingekayo we-inverter uzokwanda, okuzokhulisa izindleko futhi akhuphule amandla asobala wesifunda se-ac sohlelo lwe-Photovoltaic. Njengokwenyuka kwamanje, ukulahleka kuzokhuphuka nakanjani, futhi ukusebenza kahle kohlelo kuzokwehla.
5. Ukusebenza kwe-inverter
Ukusebenza kahle kwe-Inverter kubhekisa isilinganiso sokukhishwa kwamandla okukhipha kumandla okufaka ngaphansi kwezimo zokusebenza ezibekiwe, ezivezwe njengephesenti. Ngokuvamile, ukusebenza kahle kwe-Inverter ye-Photovoltaic kubhekisele emthwalweni wokumelana okuhlanzekile, ngaphansi kwemithwalo engama-80%. ukusebenza kahle. Njengoba izindleko eziphelele zohlelo lwe-Photovoltaic ziphezulu, ukusebenza kahle kwe-inverter ye-Photovoltaic kufanele kukhuliswe, izindleko zohlelo kufanele zincishiswe, futhi ukusebenza kwezindleko zohlelo lwe-Photovoltaic kufanele luthuthukiswe. Njengamanje, ukusebenza kahle kwama-inverters aphakathi nendawo kuphakathi kwama-80% no-95%, kanye nokusebenza kahle kwamandla wamandla aphansi kuyadingeka ukungabi ngaphansi kwama-85%. Enqubweni yokwakheka yangempela yohlelo lwe-Photovoltaic, hhayi kuphela ukuthi ama-Inverteers aphezulu kuphela akhethelwe, kepha ngasikhathi sinye, uhlelo kufanele lulungiselelwe kahle ukwenza umthwalo we-Photovoltaic usebenze eduze kwephuzu lokusebenza kahle ngangokunokwenzeka.
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Ibonisa okukhiqizwa okukhiqizwe okukhona kwamanje kwe-inverter ngaphakathi kobubanzi be-Load Power Factor. Eminye imikhiqizo ye-inverter inikeza umthamo wokukhishwa okulinganiselwe, okuvezwa ku-VA noma ku-KVA. Umthamo olinganiselwe we-inverter yilapho imiphumela yokuphuma i-Power Factor ingu-1 (ie ie umthwalo wokuphikisa okumsulwa), i-voltage ekhiqizwe okulinganiselwe ingumkhiqizo wokukhishwa okukalwe njengamanje.
7. Izinyathelo zokuzivikela
I-Inverter enokusebenza okuhle kakhulu kufanele futhi ibe nemisebenzi noma izindlela eziphelele zokuvikelwa noma izinyathelo zokubhekana nezimo ezahlukahlukene ezingejwayelekile ngesikhathi sokusetshenziswa kwangempela, ukuze i-inverter uqobo kanye nezinye izinto zohlelo azilimalanga.
(1) Umnikazi Wenqubomgomo Ye-Undervoltage:
Lapho i-voltage yokufaka iphansi kune-85% yamandla kagesi alinganiselwe, i-inverter kufanele ibe nokuvikelwa nokuboniswa.
(2) I-Akhawunti Yomshuwalense Oftervoltage:
Lapho i-voltage yokufaka iphakeme kune-130% yamandla kagesi alinganiselwe, i-inverter kufanele ibe nokuvikelwa nokuboniswa.
(3) Ukuvikelwa okuphezulu:
Ukuvikelwa okungaphezulu kwamanje kwe-inverter kufanele ukwazi ukuqinisekisa isenzo esifike ngesikhathi lapho umthwalo uzungeza isikhathi esifushane noma amanje edlula inani elivumelekile, ukuze likuvimbele ukuthi lilinyazwe yi-surge yamanje. Lapho ukusebenza kwamanje kudlula i-150% yenani elikalwe, i-inverter kufanele ikwazi ukuvikela ngokuzenzakalelayo.
(4) Isiqinisekiso sesifunda esifushane
Isikhathi sokuvikelwa kwesengezo esifushane se-Inverter-Motissuet akufanele sidlule ku-0.5s.
(5) Ukufaka Ukuvikelwa Kwe-Polarity Refress:
Lapho izigxobo ezihle nezingezinhle zama-terminals ezifakwayo zibuyiselwa emuva, i-inverter kufanele ibe nomsebenzi wokuvikelwa nokuboniswa.
(6) Ukuvikelwa kombani:
I-Inverter kufanele ibe nokuvikelwa kombani.
(7) ngaphezulu kokuvikelwa kwezinga lokushisa, njll.
Ngaphezu kwalokho, kwabakwa-Inverters ngaphandle kwezindlela zokuqina kwama-voltage, i-inverter kufanele futhi ibe nezinyathelo zokuvikela ngokweqile ukuvikela umthwalo ekulimaleni ngokweqile.
8. Ukuqala Izici
Faka ikhono le-inverter ukuqala ngomthwalo kanye nokusebenza ngesikhathi sokusebenza okunamandla. I-inverter kufanele iqinisekiswe ukuthi iqale ngokuthembekile ngaphansi komthwalo olinganiselwe.
9. Umsindo
Ama-Transformers, ama-Inductors ehlunga, ukushintshwa kwe-elekthronikhi kanye nabalandeli be-Power Electronic Expoc yonke ikhiqiza umsindo. Lapho i-inverter isekusebenzeni okujwayelekile, umsindo wayo akufanele ngedlule i-80DB, futhi umsindo we-inverter encane akufanele ngedlule i-65DB.
Isikhathi sePosi: FEB-08-2022
