1. Chikonzero
Nei inverter ichiitika overvoltage tripping kana kudzikiswa kwemagetsi kuchiitika?
Inogona kuva chimwe chezvikonzero zvinotevera:
1)Giridhi yako yemunharaunda iri kutoshanda kunze kweiyo Standard voltage miganhu (kana zvisirizvo zvigadziriso).Semuyenzaniso, kuAustralia, AS 60038 inodoma mazana maviri nemakumi matatu volts seyezita regrid voltage ine a.+ 10%, -6% renji, saka muganho wepamusoro we253V.Kana zviri izvo saka kambani yako yemunharaunda Grid ine chisungo chepamutemo chekugadzirisa magetsi.Kazhinji nekugadzirisa transformer yemunharaunda.
2)Giridhi yako yemunharaunda ingori pasi pemuganho uye solar system yako, kunyangwe yakaiswa nemazvo uye kune ese zviyero, inosundira iyo yemuno grid pamusoro peiyo yekutsika.Solar inverter yako inobuda materminals akabatana ne'Connection Point' ine grid netambo.Tambo iyi ine chinodzivirira chemagetsi chinogadzira voltage patambo pese apo inverter inotumira kunze simba nekutumira magetsi mugridi.Izvi tinozvidaidza kuti 'voltage rise'.Kana zuva rako richitumira kunze kwenyika ndiko kukura kwevoltige inokwira nekuda kweOhm's Law (V=IR), uye kukwirisa kupikisa kwetambo ndiko kunowedzera kukwira kwemagetsi.
Semuyenzaniso, kuAustralia, Australian Standard 4777.1 inotaura kuti simba guru rinokwira mukuiswa kwezuva rinofanira kuva 2% (4.6V).
Saka iwe unogona kunge uine yekumisikidza inosangana neiyi chiyero, uye ine voltage inosimuka ye4V pakazara kunze kwenyika.Gridi yako yemunharaunda inogonawo kusangana neyakajairwa uye kuve pa252V.
Pazuva rakanaka rezuva kana pasina munhu kumba, iyo system inotumira kunze zvinenge zvese kune grid.Iyo voltage inosundirwa kusvika ku252V + 4V = 256V kweanopfuura maminetsi gumi uye inverter inofamba.
3)Iyo yakanyanya kusimuka voltage pakati pe solar inverter yako uye grid iri pamusoro pe t iye 2% yakakura muStandard,nekuti kupikisa mutambo (kusanganisira chero zvisungo) zvakanyanyisa.Kana zviri izvo saka mugadziri anofanira kunge akakuraira kuti yako AC cabling kune grid inoda kukwidziridzwa solar isati yaiswa.
4) Inverter hardware nyaya.
Kana iyo yakayerwa Grid voltage inogara iri mukati meiyo siyana, asi inverter inogara iine overvoltage tripping kukanganisa zvisinei kuti yakafara sei voltage renji, inofanirwa kunge iri hardware nyaya ye inverter, zvingave kuti IGBTs dzakuvadzwa.
2. Kuongororwa
Edza Grid Yako Voltage Kuti uedze yako grid voltage yemunharaunda, inofanirwa kuyerwa apo solar system yako yakadzimwa.Zvikasadaro voltage yaunoyera ichakanganiswa nesolar system yako, uye haugone kupa mhosva pane grid!Iwe unofanirwa kuratidza kuti grid voltage yakakwira pasina yako solar system inoshanda.Unofanirawo kudzima mitoro mikuru iri mumba mako.
Inofanirwa kuyerwawo pazuva rine zuva masikati makuru - sezvo izvi zvichifunga nezvekukwira kwevoltage kunokonzerwa nemamwe masisitimu ezuva akakukomberedza.
Kutanga - nyora kuverenga pakarepo ne multimeter.Yako sparky inofanira kutora ipapo ipapo voltage kuverenga pane main switchboard.Kana iyo voltage yakakura kudarika magetsi mashoma, wobva watora pikicha yemultimeter (zvichida neiyo solar supply main switch iri off position mumufananidzo mumwechete) woitumira kudhipatimendi remagetsi rekambani yeGrid.
Chechipiri - rekodha iyo 10 maminetsi avhareji nemagetsi logger.Sparky yako inoda voltage logger (kureva Fluke VR1710) uye inofanira kuyera maminetsi gumi epakati peavhareji nesolar yako nemitoro mikuru yakadzimwa.Kana avhareji iri pamusoro peiyo shoma voltage tumira iyo data yakarekodhwa uye mufananidzo wekuyerwa kweseta - zvakare zviri nani kuratidza solar supply main switch yakadzimwa.
Kana imwe yebvunzo mbiri dziri pamusoro iri 'positive' wobva wamanikidza kambani yako yeGrid kugadzirisa mazinga emagetsi emunharaunda yako.
Simbisa kudonha kwevoltage mukuiswa kwako
Kana ma calculation aratidza kukwira kwevoltage inodarika 2% ipapo unozoda kukwidziridza AC cabling kubva inverter yako kuenda kune grid Connection Point kuitira kuti waya dziwedzere mafuta (fatter wires = low resistance).
Yekupedzisira Danho - kuyera kukwira kwevoltage
1. Kana grid voltage yako yakanaka uye macalculation ekukwira kwevoltage ari pasi pe2% ipapo sparky yako inoda kuyera dambudziko kuti isimbise maverengero ekukwira kwevoltage:
2. PV yakadzimwa, uye mamwe ese akaremerwa maseketi akadzimwa, pima hapana-mutoro wemagetsi ekupa pane main switch.
3. Isa kamwe chete inozivikanwa resistive mutoro eg hita kana hovhoni/hotplates uye kuyera yazvino kudhirowa mune actives, kwazvakarerekera uye pasi uye pakutakura mutoro voltage pa main switch.
4. Kubva pane izvi unogona kuverenga kudonha kwevoltage / kusimuka mumudziyo unouya wevatengi uye main service.
5. Verenga mutsara AC kuramba kuburikidza neMutemo weOhm kuti utore pazvinhu zvakadai semajoini akaipa kana kuputsika kusina kwazvakarerekera.
3. Mhedziso
Next Steps
Zvino unofanira kuziva kuti dambudziko rako nderei.
Kana iri dambudziko #1- grid voltage yakawandisa- saka ndiro dambudziko rekambani yako yeGrid.Kana mukavatumira humbowo hwese hwandataura vanosungirwa kuzvigadzirisa.
Kana iri dambudziko #2- Giridhi yakanaka, kukwira kwevoltage iri pasi pe2%, asi ichiri kufamba saka zvaungasarudza ndezvi:
1. Zvichienderana nekambani yako yeGridhi unogona kubvumirwa kushandura inverter maminitsi gumi avhareji yekufamba kwemhepo kune inobvumirwa kukosha (kana kana iwe uine rombo rakanaka kunyange rakakwirira).Tora sparky yako kuti utarise neGrid Kambani kana uchibvumidzwa kuita izvi.
2. Kana inverter yako ine "Volt / Var" mode (yakawanda yemazuva ano inoita) - zvino bvunza mugadziri wako kuti agone kugonesa iyi modhi neyakagadzika mapoinzi anokurudzirwa nekambani yako yemunharaunda Grid - izvi zvinogona kuderedza kuwanda uye kuomarara kwekukwira kwevoltage.
3. Kana izvo zvisingaiti saka, kana iwe une 3 chikamu chekugovera, kuvandudza kune 3 phase inverter inowanzogadzirisa nyaya - sezvo kukwira kwemhepo kunopararira pamusoro pezvikamu zvitatu.
4. Zvikasadaro uri kutarisa kukwidziridza tambo dzako dzeAC kugridi kana kudzikamisa simba rekutumira kunze kwesolar system yako.
Kana iri dambudziko #3- max voltage inokwira pamusoro pe2% - saka kana iri yekumisikidzwa ichangoburwa inoita sekunge mugadziri wako haana kuisa system kune Standard.Unofanira kutaura navo uye kugadzira mhinduro.Ichanyanya kusanganisira kukwidziridza iyo AC cabling kune grid (shandisa fatter waya kana kupfupisa tambo pakati inverter uye Grid yekubatanidza poindi).
Kana iri dambudziko #4- Inverter Hardware dambudziko.Dana rubatsiro rwehunyanzvi kuti upe chinotsiva.