Inverter imhando yemagetsi ekugadzirisa mudziyo inoumbwa semiconductor madivayiri, anonyanya kushandiswa kushandura DC simba kuita AC simba, kazhinji inoumbwa neboost circuit uye inverter bhiriji redunhu.Iyo inosimudzira dunhu inowedzera iyo DC voltage yesolar cell kune iyo DC voltage inodiwa neiyo inverter yekubuda control;Iyo inverter bhiriji reketi inoshandura yakawedzera DC voltage kuita yakajairika frequency AC voltage zvakaenzana.
Inverter, inozivikanwawo semagetsi regulator, inogona kukamurwa kuita marudzi maviri emagetsi akazvimirira uye grid-yakabatana maererano nekushandiswa kwe inverter mu photovoltaic simba rekugadzira system.Zvinoenderana neiyo waveform modulation mode, inogona kukamurwa kuita square wave inverter, nhanho wave inverter, sine wave inverter uye yakasanganiswa matatu-chikamu inverter.Kune iyo inverter inoshandiswa mune grid-yakabatana system, maererano nekuvapo kana kusavapo kweshanduko inogona kukamurwa kuva transformer type inverter uye transformer type inverter.Iwo makuru tekinoroji ma parameter e solar photovoltaic inverter ndeaya:
1. Rated output voltage
Iyo pv inverter inofanirwa kukwanisa kuburitsa yakayerwa voltage mukati meiyo inotenderwa kushanduka kweiyo yakataurwa yekuisa dc voltage.Kazhinji, kana iyo yakayerwa yekubuda voltage iri imwe-chikamu 220v uye matatu-chikamu 380v, iyo voltage fluctuation deviation ine zvinotevera zvinongedzo.
(1) Mukushanda kwakadzikama, kutsauka kwevoltage kunodiwa kuti usapfuure ± 5% yemutengo wakayerwa.
(2) Kutsauka kwevoltage hakufanire kudarika ± 10% yemutengo wakayerwa kana paine shanduko yemutoro.
(3) Pasi pemamiriro ekushanda akajairika, iyo isina kuenzana dhigirii yechitatu-phase voltage kubuda kweiyo inverter haifanire kudarika 8%.
(4) Kukanganiswa kwematatu-phase output voltage waveform (sine wave) haifaniri kudarika 5%, uye imwe-phase inobuda haifaniri kudarika 10%.
(5) Iyo inverter inobuda AC voltage frequency pasi peyakajairika mamiriro ekushanda kutsauka kwayo kunofanirwa kunge kuri mukati me1%.Iyo inobuda voltage frequency inotsanangurwa muyero yenyika gb/t 19064-2003 inofanira kuva pakati pe49 ne51hz.
2, mutoro simba chinhu
Iyo inotakura simba chinhu inoratidza huwandu hweiyo inverter ine inductive mutoro kana capacitive mutoro.Pasi pe sine wave mamiriro, simba remutoro rinobva pa0.7 kusvika 0.9, uye chiyero chiri 0.9.Muchiitiko cheimwe simba rekutakura, kana simba remagetsi re inverter rakaderera, iyo inodiwa inverter simba ichawedzera, zvichiita kuti kuwedzerwa kwemari, panguva imwechete, simba rinoratidzika re photovoltaic system AC loop inowedzera, iyo loop ikozvino inowedzera, kurasikirwa kuchawedzera, uye kushanda kwehurongwa kunoderera.
3. Yakatemerwa kubuda ikozvino uye kukwanisa
Yakatemerwa kubuda ikozvino inoreva iyo yakayerwa yakabuda ikozvino ye inverter mukati meyakatarwa mutoro simba factor renji (uniti: A).Yakatemerwa kubuda simba chigadzirwa cheyakayerwa kubuda voltage uye yakayerwa kubuda ikozvino kweiyo inverter kana yakabuda simba chinhu chiri 1 (kureva, yakachena resistive mutoro), muKVA kana kW.
Nguva yekutumira: Aug-20-2022
