Muurayi we Photovoltaic Power Plants-DC Arc

Nekuda kwezvinodiwa zvekusarerekera kabhoni uye kabhoni peaking, iyo itsva simba indasitiri ikozvino yakakurumbira.Munhu wese ari kuwedzera kubvumirana ne photovoltaic power stations, uye vanhu vakawanda vari kupinda mumhizha ye photovoltaic.Nekudaro, huwandu hwevanhu vari kuita indasitiri iyi hauna kuenzana, uye vanhu vazhinji havatarise kune DC arcs, izvo zvinotungamira kune nhamba huru yetsaona.

Arc imhando yekuburitsa gasi chiitiko.Iyo spark pakarepo inogadzirwa nezvino ichipfuura nepakati peimwe insulating medium, semhepo, inonzi arc.Zvese zviri zviviri zvakanangana zvazvino uye zvinochinjanisa zvazvino zvinogadzira arcs.Dzimwe nguva kana isu tikabaira socket, tinoona sparks, inova AC arc.Mune DC system, arc yakadaro inokonzerwa ne photovoltaic cell tambo inonzi DC arc.Kusiyana neizvi, DC masisitimu anowanzo gadzira arcs pane AC masisitimu, uye kana arc yaitika, zvinonyanya kuoma kudzima arc.

Mune photovoltaic power station, photovoltaic panels emit DC magetsi, iyo inoshandurwa kuva AC magetsi chete mushure mokupfuura nepakati pe photovoltaic inverter.Mavhiri ePV panels akakwirira kwazvo, kubva kumazana mashoma volts kusvika ku1500 V. Kutaura zvazviri, makumi mashoma emagetsi anokwana kubudisa DC arc, iyo inogona kubudisa kutonhora kwakanyanya kusvika ku4200 degrees.Kana mana photovoltaic mapaneru akabatanidzwa pamwechete, iyo general voltage ichasvika anenge 120 volts.Kubatana kwakanaka uye kwakashata kwewaya kunobva kwagadzira DC arc, uye mumasekonzi mashoma, tembiricha yepamusoro inobvumira tambo yeDC yemhangura kunyunguduka pakarepo uye kushanduka kuita madonhwe emhangura pasi.Nzvimbo yakanyunguduka yemhangura ndeye 1083 madhigirii, mhangura yakanyungudutswa kana ichidonha kune akawanda emapuranga emadziro eimba mhedzisiro isingafungidzike, inogona kukonzera moto, imwe yeEuropean villa moto inokonzerwa nedenga reiyo photovoltaic power plant DC arc yakakonzera. .Naizvozvo, iyo DC arc yekudzivirira ye photovoltaic simba zvidyarwa yakakosha.

Saka, nei photovoltaic power station ichigadzira DC arc?Zvikonzero zvikuru zvekuitika kweDC arc ndezvekuti: iyo terminal kana iyo fuse yekubatanidza haina kumanikidzwa, bhaudhi yebhasi haina kusimbiswa, iyo yekubatanidza inoiswa oxidized, waya yekuvharisa yakaderedzwa, iyo yekuvharisa midziyo haina kukwana, zvichingodaro.

Ndedzipi njodzi dzeDC arc kune photovoltaic magetsi zvidyarwa?Yokutanga ndiyo kukuvara kwemidziyo.Combiner mabhokisi, DC makabati, bhatiri mapaneru zvikamu, connectors, junction mabhokisi, etc. anopiswa kunze.Chechipiri kupera simba.Chero kukundikana kuchakonzera kushomeka kwemagetsi kugadzirwa.Chechitatu injodzi dzekuchengeteka.Moto unogona kuisa pangozi kuchengetedzwa kwemunhu uye pfuma.

Ndeipi mukana wekuti arc yemagetsi igadziriswe muPV chiteshi chemagetsi?Tora chiteshi chemagetsi che10MW semuenzaniso, kune zviuru makumi masere zvejunction mabhokisi ekubatanidza uye 4,000 terminal blocks, pamwe nemukati weld majoini emabhatiri mapaneru, iyo DC kabhineti uye yemukati nodes yeinverter, zvese zvichiwedzera kusvika 84,000, saka. kana mukana wekukundikana uri 1 mu10,000, pane 8 vavo, saka mukana wekuitika wakanyanya kukwirira.

Nzira yekudzivisa DC Arc mu Photovoltaic Power Station?

Chekutanga, iva nechokwadi chekushandisa zvigadzirwa zvenguva dzose uye zvinogoneka, kwete zvigadzirwa zvemanyepo uye zvisina kunaka.Zvakadai seSlocable'smc4 inline fuse yekubatanidzauyesplit junction bhokisi.
Chechipiri, nhamba yemanodhi inofanira kuderedzwa zvakanyanya sezvinobvira.
Chechitatu, vashandi vekuvaka vanofanira kushandisa maturusi eunyanzvi uye vanofanira kudzidziswa uye kukwaniriswa nekudzidziswa basa uye bvunzo vasati vapinzwa pabasa.
Chechina, mushure mekunge chiteshi chemagetsi chaiswa, kuongororwa kwakakodzera kunofanirwa kuitwa.
Chechishanu, panofanirwa kunge paine maturusi ekuona anoenderana, senge iyi DC arc yekuona sensor, ivo vanozoridza mhere uye kucheka dunhu kana vangoona DC arc kubvisa njodzi dzakavanzika.
Yechitanhatu, panofanira kunge paine simba rekutarisa chikuva chekutarisa data rese rekushanda munguva chaiyo, kuitira kuti kana njodzi dzakavanzika dzawanikwa, vashandi vanogona kuziviswa nekukurumidza kuti vagadzirise.

Muchokwadi, DC arc haina kutyisa.Chero bedzi iwe uchigona nzira chaiyo uye kushandisa nhanho dzesainzi, unogona kudzivirira nemazvo uye kubata nazvo.Kungofanana nemagetsi eAC kumba, chengetedzo inovimbiswa zvizere.Kuburikidza neakakodzera tekinoroji nzira, dambudziko reDC arc kudzivirira uye kutonga rinogona kugadziriswa nemutengo wakaderera.