Inverter, yomwe imadziwikanso kuti chowongolera mphamvu komanso chowongolera mphamvu, ndi gawo lofunikira kwambiri pamagetsi a photovoltaic.Ntchito yaikulu ya photovoltaic inverter ndiyo kutembenuza magetsi opangidwa ndi solar solar kukhala magetsi osinthika omwe amagwiritsidwa ntchito ndi zipangizo zapakhomo.Kupyolera mu dera lonse la mlatho, pulosesa ya SPWM nthawi zambiri imagwiritsidwa ntchito kusinthasintha, kusefa, kulimbikitsa, ndi zina zotero, kuti apeze mphamvu ya sinusoidal AC yomwe imafanana ndi nthawi yowunikira, magetsi ovotera, ndi zina zotero kwa wogwiritsa ntchito mapeto a dongosolo.Ndi inverter, batire ya DC imatha kugwiritsidwa ntchito kupereka mphamvu ya AC ku chipangizocho.
Dongosolo lamagetsi la solar AC limapangidwa ndi solar panel, control controller, inverters ndi mabatire;makina opangira magetsi a solar DC samaphatikizapo ma inverters.Njira yosinthira mphamvu ya AC kukhala mphamvu ya DC imatchedwa rectification, dera lomwe limamaliza ntchito yokonzanso limatchedwa rectifier circuit, ndipo chipangizo chomwe chimazindikira kukonzanso chimatchedwa chipangizo chokonzanso kapena chowongolera.Momwemonso, njira yosinthira mphamvu ya DC kukhala mphamvu ya AC imatchedwa inverter, dera lomwe limamaliza ntchito ya inverter limatchedwa inverter circuit, ndipo chipangizo chomwe chimazindikira njira ya inverter chimatchedwa zida za inverter kapena inverter.
Pakatikati pa chipangizo cha inverter ndi chozungulira chosinthira, chomwe chimatchedwa kuti inverter circuit mwachidule.Dera limamaliza ntchito ya inverter poyatsa ndi kuzimitsa chosinthira zamagetsi zamagetsi.Kuzimitsa kwa zida zamagetsi zamagetsi kumafunikira ma pulse ena oyendetsa, ndipo ma pulse awa amatha kusinthidwa posintha siginecha yamagetsi.Mabwalo omwe amapanga ndikuwongolera ma pulse nthawi zambiri amatchedwa mabwalo owongolera kapena malupu owongolera.Kapangidwe koyambira kachipangizo ka inverter kumaphatikizapo gawo lodzitchinjiriza, gawo lotulutsa, gawo lolowera, gawo lotulutsa, ndi zina zofananira ndi gawo lowongolera lomwe latchulidwa pamwambapa.
Inverter sikuti imakhala ndi ntchito ya kutembenuka kwa DC-AC yokha, komanso imakhala ndi ntchito yowonjezera ntchito ya selo la dzuwa ndi ntchito ya chitetezo cholephera.Mwachidule, pali ntchito yodziyimira pawokha ndi kutseka, ntchito yoyang'anira mphamvu yayikulu kwambiri, ntchito yolimbana ndi odziyimira pawokha (yamagetsi olumikizidwa ndi gridi), ntchito yosinthira magetsi (yamagetsi olumikizidwa ndi grid), ntchito yozindikira ya DC (yolumikizidwa ndi gridi). system), DC grounding kuzindikira Ntchito (ya grid yolumikizidwa ndi grid).Pano pali chidule chachidule cha ntchito zodziwikiratu ndi ntchito zotsekera komanso ntchito yowongolera yowongolera mphamvu.
1. Ntchito yodzidzimutsa ndi yotseka: Pambuyo pa kutuluka kwa dzuwa m'mawa, mphamvu ya dzuwa imawonjezeka pang'onopang'ono, ndipo kutuluka kwa selo la dzuwa kumawonjezeka.Pamene mphamvu yotulutsa yofunikira ndi ntchito ya inverter ikufika, inverter imayamba kugwira ntchito yokha.Pambuyo polowa ntchito, inverter idzasamalira zotsatira za module ya dzuwa nthawi zonse.Malingana ngati mphamvu yotulutsa gawo la selo la dzuwa ndi lalikulu kuposa mphamvu yotulutsa mphamvu yofunikira ndi ntchito ya inverter, inverter idzapitiriza kugwira ntchito;Inverter imathanso kuthamanga masiku amvula.Pamene kutuluka kwa gawo la selo la dzuwa kumakhala kochepa ndipo kutulutsa kwa inverter kuli pafupi ndi 0, inverter imapanga malo oima.
2. Ntchito yoyendetsera mphamvu yowonjezera mphamvu: Kutulutsa kwa module ya solar cell kumasintha ndi mphamvu ya dzuwa ndi kutentha kwa module ya solar cell yokha (chip kutentha).Kuonjezera apo, chifukwa gawo la selo la dzuwa liri ndi khalidwe kuti voteji imachepa ndi kuwonjezeka kwamakono, pali malo abwino kwambiri omwe angapeze mphamvu zambiri.Kuchuluka kwa ma radiation adzuwa akusintha, monganso momwe zimawonekera bwino kwambiri.Ponena za kusinthaku, malo ogwirira ntchito a solar cell module nthawi zonse amakhala pamtunda wapamwamba kwambiri, ndipo dongosololi lakhala likupeza mphamvu zowonjezera mphamvu kuchokera ku module cell solar.Kuwongolera uku ndiko kuwongolera kwambiri kotsata mphamvu.Chofunikira chachikulu cha ma inverters a solar power system ndikuti amaphatikiza ntchito ya maximum power point tracking (MPPT).
Nthawi yotumiza: Sep-12-2022
