Photovoltaic off-grid power generation system haitsamiri pane giredhi remagetsi uye inoshanda yakazvimiririra, uye inoshandiswa zvakanyanya munzvimbo dziri kure dzemakomo, nzvimbo dzisina magetsi, zvitsuwa, zviteshi zvekutaurirana uye marambi emumugwagwa uye mamwe maapplication, uchishandisa photovoltaic simba rekugadzira kugadzirisa. zvinodiwa nevagari munzvimbo dzisina magetsi, kushaikwa kwemagetsi uye magetsi asina kugadzikana, zvikoro kana mafekitori madiki ekugara uye kushanda magetsi, photovoltaic simba rekugadzira zvine zvakanakira zvehupfumi, kuchena, kuchengetedzwa kwezvakatipoteredza, hapana ruzha runogona kutsiva chikamu kana kutsiva zvachose dizeli. basa rekugadzira jenareta.

1 PV off-grid simba rekugadzira system kurongedza uye kuumbwa
Photovoltaic off-grid simba rekugadzira system inowanzoiswa mudiki DC sisitimu, diki uye yepakati off-grid yemagetsi system yekugadzira, uye hombe off-grid simba rekugadzira system.Iyo diki DC sisitimu inonyanya kugadzirisa izvo zvinonyanya kukosha zvemwenje zvinodiwa munzvimbo dzisina magetsi;iyo diki uye yepakati off-grid system inonyanya kugadzirisa zvinodiwa nemagetsi zvemhuri, zvikoro uye mafekitori madiki;iyo huru off-grid system inonyanya kugadzirisa zvinodiwa nemagetsi emisha yese nezvitsuwa, uye iyi system ikozvino yave muchikamu chemicro-grid system.
Photovoltaic off-grid power generation system inowanzo umbwa nephotovoltaic arrays yakagadzirwa nesolar modules, solar controllers, inverters, mabhangi mabhangi, mitoro, nezvimwe.
Iyo PV array inoshandura simba rezuva kuita magetsi kana pane chiedza, uye inopa simba kumutoro kuburikidza nemutongi wezuva uye inverter (kana inverse control machine), paunenge uchichaja bhatiri pack;kana pasina chiedza, bhatiri rinopa simba kune AC mutoro kuburikidza ne inverter.
2 PV off-grid simba rekugadzira system huru michina
01. Modules
Photovoltaic module chikamu chakakosha che-off-grid photovoltaic power generation system, ine basa nderekushandura simba remwaranzi yezuva kuita DC magetsi.Irradiation maitiro uye tembiricha hunhu ndizvo zvinhu zviviri zvikuru zvinokanganisa kuita kwemodule.
02, Inverter
Inverter chishandiso chinoshandura yakananga ikozvino (DC) kuita alternating current (AC) kuti isangane nezvinodiwa zvemagetsi zve AC mitoro.
Zvinoenderana neinobuda waveform, inverters inogona kukamurwa kuita square wave inverter, nhanho wave inverter, uye sine wave inverter.Sine wave inverters inoratidzirwa nekushanda kwakanyanya, yakaderera harmonics, inogona kuiswa kune ese marudzi emitoro, uye ine yakasimba kutakura inotakura inductive kana capacitive mitoro.
03、Mutongi
Basa guru rePV controller ndere kudzora nekudzora simba reDC rinoburitswa nePV modules uye kubata kuchaja nekuburitsa bhatiri zvine hungwaru.Off-grid masisitimu anofanirwa kugadziridzwa zvinoenderana neiyo system's DC voltage level uye system simba simba neakakodzera maratidziro ePV controller.PV controller yakakamurwa kuita PWM mhando uye MPPT mhando, inowanzo kuwanikwa mumhando dzakasiyana dzemagetsi eDC12V, 24V uye 48V.
04, Bhatiri
Bhatiri ndiro simba rekuchengetedza simba remagetsi ekugadzira magetsi, uye basa rayo nderekuchengetedza simba remagetsi rinobudiswa kubva kuPV module kupa simba kune mutoro panguva yekushandiswa kwesimba.
05、Kuongorora
3 sisitimu dhizaini uye sarudzo dhizaini misimboti: kuve nechokwadi chekuti mutoro unofanirwa kusangana nenzvimbo yemagetsi, ine hushoma hwemafotovoltaic modules uye huwandu hwebhatiri, kuti uderedze kudyara.
01, Photovoltaic module dhizaini
Reference formula: P0 = (P × t × Q) / (η1 × T) formula: P0 - simba repamusoro resolar cell module, unit Wp;P - simba remutoro, chikwata W;t - -maawa ezuva nezuva ekushandiswa kwemagetsi emutoro, chikwata H;η1 -ndiko kugona kwehurongwa;T -avhareji yeavhareji yezuva nezuva yepamusoro-soro yezuva, yuniti HQ- - inoenderera mberi yemakore yakawedzera chinhu (kazhinji 1.2 kusvika 2)
02, PV controller dhizaini
Reference formula: I = P0 / V
Ikoko: I - PV controller control current, unit A;P0 - simba repamusoro resolar cell module, unit Wp;V - iyo yakayerwa voltage yebhatiri pack, unit V ★ Cherekedza: Munzvimbo dzakakwirira, mutongi wePV anoda kukudza imwe margin uye kuderedza kugona kushandisa.
03, Off-grid inverter
Reference formula: Pn=(P*Q)/Cosθ Muchidimbu: Pn - simba re inverter, unit VA;P - simba remutoro, chikwata W;Cosθ - simba chinhu che inverter (kazhinji 0.8);Q - iyo margin chinhu chinodiwa kune inverter (kazhinji inosarudzwa kubva pa1 kusvika ku5).★Cherechedza: a.Mitoro yakasiyana (resistive, inductive, capacitive) ine akasiyana ekutanga-up inrush currents uye akasiyana margin zvinhu.b.Munzvimbo dzakakwirira, iyo inverter inoda kuwedzera imwe margin uye kuderedza kugona kwekushandisa.
04, Lead-asidhi bhatiri
Reference formula: C = P × t × T / (V × K × η2) fomula: C - huwandu hwebhatiri pack, unit Ah;P - simba remutoro, chikwata W;t - mutoro maawa ezuva nezuva ekushandiswa kwemagetsi, chikwata H;V - iyo yakayerwa voltage yebhatiri pack, unit V;K - iyo yekuburitsa coefficient yebhatiri, tichifunga nezvekushanda kwebhatiri, kudzika kwekubuda, ambient tembiricha, uye zvinofurira zvinhu, zvinowanzotorwa se 0.4 kusvika 0.7;η2 -inverter kunyatsoshanda;T - nhamba yemazuva anotevedzana ane makore.
04, Lithium-ion bhatiri
Reference formula: C = P × t × T / (K × η2)
Ikoko: C - huwandu hwebhatiri pack, unit kWh;P - simba remutoro, chikwata W;t - nhamba yemaawa emagetsi anoshandiswa nemutoro pazuva, chikwata H;K -discharge coefficient yebhatiri, uchifunga nezvekuita kwebhatiri, kudzika kwekubuda, ambient tembiricha uye zvinofurira zvinhu, zvinowanzotorwa se 0.8 kusvika 0.9;η2 -inverter kunyatsoshanda;T -nhamba yemazuva akatevedzana ane makore.Design Case
Mutengi aripo anofanirwa kugadzira photovoltaic magetsi ekugadzira system, iyo yemuno avhareji yezuva nezuva peak zuva maawa anotariswa zvinoenderana nemaawa matatu, simba remarambi ese efluorescent ari pedyo ne5KW, uye anoshandiswa kwemaawa mana pazuva, uye anotungamira. -asidhi mabhatiri anoverengwa maererano nemazuva maviri emazuva anopfuurira ane makore.Verenga magadzirirwo ehurongwa uhu.