Sechikamu chakakosha chechiteshi chemagetsi chese, solar inverter inoshandiswa kuona zvikamu zveDC uye grid-yakabatana michina. Chaizvoizvo, ese magetsi chiteshi paramita anogona kuonekwa nesolar inverter. Kana chisionekwi chikaitika, hutano hwemidziyo inotsigira yechiteshi chemagetsi hunogona kuongororwa kuburikidza neruzivo rwunodzoserwa nesolar inverter. Inotevera ipfupiso yeimwe yakajairika ruzivo ruzivo uye nzira dzekurapa dze photovoltaic solar inverters.
Hapana mains connection
chikonzero chedambudziko:
Zvinoreva kuti iyo AC simba haina kubatana kana iyo AC yedunhu breaker yakabviswa, zvichikonzera iyosolar inverterkutadza kuona AC power voltage.
Solution:
1. Sarudza kana giredhi remagetsi risisina simba. Kana zvakadaro, mirira kuti gidhi remagetsi ritangezve magetsi.
2. Kana simba remagetsi rinobva kune giredhi remagetsi rakajairika, shandisa AC voltage range ye multimeter kuti uone kana iyo AC inobuda voltage yakajairika. Chekutanga, kuyera solar inverter yekubuda chiteshi uye tarisa kana paine dambudziko padivi rekubuda resolar inverter. Kana pasina dambudziko, zvinoreva kuti kune kutenderera kwedunhu kune yekunze AC side. Iwe unofanirwa kutarisa kana iyo mhepo switch, banga switch, over-voltage uye under-voltage mudziviriri uye mamwe machinjiro ekuchengetedza akakuvadzwa kana kuvhurika dunhu.
AC voltage yapera
chikonzero chedambudziko:
Kana photovoltaic simba rekugadzira rakabatana kune mushandisi-padivi remagetsi grid, iyo voltage yenzvimbo yekuwana ichawedzera. Kunyanya kupikisa kwemukati kwegridhi yemagetsi, iyo yakakura kukoshesa uku. Iyo iri pedyo ne transformer, iyo diki yekupikisa mutsara, kudiki kushanduka kwegedhi kuchave, uye kuswedera kumagumo egridhi, iyo yakareba mitsetse, iyo yakakura kushanduka kwemagetsi. Naizvozvo, apo thesolar inverteryakabatanidzwa kune grid kure kure ne transformer, iyo grid yekushanda nharaunda ye solar inverter ichava yakashata kwazvo. Mushure memuganho wepamusoro weiyo solar inverter's yekushanda voltage yapfuura, iyo solar inverter inoshuma kukanganisa uye kumira kushanda. Zvinoenderana nehunyanzvi hwekutemerwa kweiyo photovoltaic simba rekugadzira gidhi-yakabatana solar inverters (NB/T 32004-2018), izvo zvinodiwa zve overvoltage / undervoltage dziviriro padivi rekubuda kwe AC: Kana voltage paAC inobuda terminal ye solar inverter inodarika iyo. inobvumirwa voltage range yegridi, iyo solar inverter inobvumirwa kuvhara. Batidza magetsi kune gidhi remagetsi uye tumira chiratidzo chenyevero kana ichinge yagurwa. Iyo solar inverter inofanirwa kukwanisa kutanga uye kushanda zvakajairwa kana grid voltage yadzokera kune inobvumidzwa voltage renji.
Solution:
1. Edza kuisa nzvimbo yekuwana ye photovoltaic power station pedyo nekuguma kwekubuda kwe transformer kuderedza kurasikirwa kwemutsara.
2. Edza kupfupisa urefu hwemutsara we solar inverter AC inobuda kupera, kana shandisa makobvu ecopper core cables kuderedza mutsauko wevoltage pakati pe solar inverter uye grid.
3. Iye zvino akawanda grid-yakabatana solar inverters ane AC voltage regulation function. Iwe unogona kubata mugadziri kuti uwedzere iyo AC voltage renji kuti ienderane negridhi voltage kuchinja.
4. Kana zvichibvira, iyo inobuda voltage ye transformer inogona kuderedzwa zvakakodzera.
Low insulation resistance
chikonzero chedambudziko:
Iyo solar inverter ine basa rekuona iyo insulation impedance yeDC side. Kana iyo yaona kuti iyo DC yakanaka uye isina kunaka impedance pasi yakadzikira kupfuura 50kΩ, solar inverter inoshuma "PV insulation impedance imhosva yakaderera" kudzivirira muviri wemunhu kubata chikamu chipenyu chepaneru uye pasi panzvimbo. panguva imwe chete, zvichikonzera njodzi yekuvhunduka kwemagetsi. Kufurira zvinhu zvinosanganisira: DC chikamu chinodonha; cable insulation kukanganisa, rarama pachena chikamu mwando; chikamu bracket grounding haina kunaka; mamiriro ekunze uye magetsi chiteshi nharaunda mwando wakanyanya kukwirira, nezvimwe.
Solution:
Dhonza iyo AC neDC mabreaker breaker, shandisa yakakosha MC4 disassembly wrench kubvisa matanda akanaka uye asina kunaka eDC test tambo kuona kuti chikamu chebhureketi chakadzikwa zvakavimbika, shandisa multimeter megohm renji, batanidza iyo dzvuku bvunzo inotungamira kune yakanaka. danda retambo, uye dema bvunzo inotungamira pasi, verenga iyo impedance kuverenga kwega yega danda rakanaka pasi, wobva wabatanidza iyo dzvuku bvunzo inotungamira kune isina kunaka danda retambo, wobva waverenga iyo impedance kuverenga kwega yega isina kunaka. danda pasi. Kana yakakura kupfuura 50kΩ, inotongwa kuti tambo yekuvharisa inovimbika. Kana iri pasi kana kuti yakaenzana ne50kΩ, inotongwa kuti pane dambudziko nekudzivirira kwetambo. Iwe unogona kutarisa mamiriro etambo yetambo zvakasiyana kuti uone kana paine kukuvadzwa kana kusabatana kwakashata. Low insulation impedance kazhinji zvinoreva kuti matanda akanaka uye asina kunaka ari mapfupi-anotenderedzwa pasi.
Leakage current yakanyanya
chikonzero chedambudziko:
Iyo solar inverter leakage ikozvino yekuona module inoona kuti kuvuza ikozvino kwakakurisa. Kuchengetedza kuchengetedzwa kwemunhu, inomira kushanda uye inoshuma ruzivo rwekukanganisa.
Solution:
1. Bvisa iyo PV, tangazve muchina, uye tarisa kana muchina uchigona kudzoka kune zvakajairika.
2. Tarisa uone kana AC ground wire yakabatana newaya mhenyu, yera kana voltage iri pakati pewaya yepasi newaya mhenyu iri yakajairika, kana kuti shandisa chidhina chekudonha kuti uione.
3. Kana pasina kuwirirana pakati pekuyera pasi waya newaya mhenyu, zvingangoita kuti muchina uri kubuda, uye unofanira kubata mugadziri kuti ubatsirwe.
DC voltage yakawandisa
chikonzero chedambudziko:
Kune akawanda akawandisa akatevedzana-akabatana zvikamu mune imwe chete PV tambo, zvichiita kuti voltage ipfuure iyo PV voltage yekumusoro muganho we solar inverter.
Solution:
Tarisa ma paramita e solar inverter, tarisa iyo DC voltage yekuisa renji, wobva wayera kana iyo yakavhurika yedunhu voltage yetambo iri mukati meiyo inobvumidzwa renji ye solar inverter. Kana ikadarika chiyero chinotenderwa, dzikisa huwandu hwezvikamu zvakatevedzana mutambo.
Nenzira imwecheteyo, kana iyo PV voltage ichinzi yakadzikira, tarisa kuti nhamba yemamodules akabatanidzwa munhevedzano idiki here, kana kuti matanda akanaka uye asina kunaka etambo akabatana, materminal akasununguka, kusangana. irombo, kana tambo yakazaruka.
Hapana kuratidzwa pane solar inverter skrini
chikonzero chedambudziko:
1. Iko hakuna kupinza kweDC kana kusimba kwesimba rekubatsira, iyo solar inverter LCD inofambiswa neDC, uye chikamu chemagetsi hachikwanise kusvika kune solar inverter yekutanga voltage.
2. Iwo maPV ekupinza materminal akabatana akadzokera kumashure. Zviteshi zvePV zvine matanda akanaka uye asina kunaka, ayo anofanira kuenderana kune mumwe nemumwe uye haagoni kubatanidzwa mumutsara nemamwe mapoka.
3. Iyo DC switch haina kuvharwa.
4. Chimwe chikamu chinobviswa, zvichiita kuti dzimwe tambo dzitadze kushanda.
Solution:
1. Shandisa multimeter kuyera iyo DC inopinza voltage ye solar inverter. Kana iyo voltage iri yakajairika, iyo yakazara voltage ndiyo huwandu hwemagetsi echikamu chimwe nechimwe.
2. Kana pasina voltage, tarisa kana DC switch, wiring terminals, cable joints, components, etc. zvakajairika.
Monitoring nyaya
chikonzero chedambudziko:
Muunganidzi uye solar inverter haisi kutaurirana; muunganidzi haana simba pa: dambudziko rechiratidzo panzvimbo yekuisa; zvikonzero zvemukati zvemuunganidzi.
Solution:
1. Tarisa uone kana iyo yekukurukurirana interface pakati pemuunganidzi neiyosolar inverterzvakajairika, uye tarisa chiratidzo chekutaurirana chiedza;
2. Tarisa simba rechiratidzo chemunharaunda. Nzvimbo dzine masaini asina kusimba dzinoda kushandisa antenna akakwenenzverwa.
3. Skena iyo chaiyo yekuunganidza serial nhamba
4. Kana pasina matambudziko nemamiriro ekunze, kana muunganidzi asingapinduri kune chero kubatana, zvinogona kuonekwa kuti kune kukanganisa kwemukati kwemuunganidzi.
Pfupisa
Pamusoro, matambudziko akajairika esolar inverters mumapurojekiti e-photovoltaic anoongororwa uye mamwe mazano anopihwa, achitarisa pakunzwisisa zvikonzero uye nzira dzekurapa dzezvakajairwa matambudziko. Panguva imwecheteyo, mukuchengetedza kwezuva nezuva kwezviteshi zvemagetsi, zviyero zvekuchengetedza zvakakwana zvekuchengetedza uye zvakanaka zvakagadziriswa kushanda nekugadzirisa zvinodiwa. Ndiyo zvakare kiyi yekuona mari yechiteshi chemagetsi.
Semugadziri wezuva inverter ane makore gumi nemaviri ehunyanzvi, Amensolar inopa 24/7 mushure mekutengesa-sevhisi, inotambira vanogovera kuti vabatane netiweki yedu uye kukura pamwechete.
Nguva yekutumira: May-12-2024
