Photovoltaic inverters ine yakasimba tekinoroji zviyero seyakajairwa inverters. Chero inverter inofanirwa kusangana neanotevera tekinoroji zviratidzo kuti ionekwe seanokwanisa chigadzirwa.
1. Output Voltage Kugadzikana
Mune photovoltaic system, simba remagetsi rinogadzirwa nesero rezuva rinotanga kuchengetwa nebheteri, uye rinoshandurwa kuva 220V kana 380V inoshandura ikozvino kuburikidza ne inverter. Nekudaro, bhatiri rinokanganiswa nechaji yayo uye yekuburitsa, uye kubuda kwayo kwemagetsi kunosiyana zvakanyanya. Semuenzaniso, kune bhatiri rine zita re12V, kukosha kwayo kwemagetsi kunogona kusiyanisa pakati pe10.8 ne14.4V (kupfuura iyi renji kunogona kukonzera kukuvadzwa kwebhatiri). Kune inverter inokwanisa, kana magetsi ekuisa achinja mukati merudzi urwu, shanduko yemhepo yakatsiga-inobuda magetsi haifanire kudarika ± 5% yemutengo wakayerwa, uye kana mutoro wachinja kamwe kamwe, kubuda kwemagetsi hakufanirwe kudarika ± 10. % yemutengo wakayerwa.
2. Waveform Distortion yeOutput Voltage
Kune sine wave inverters, iyo yakanyanya kubvumidzwa waveform kukanganisa (kana harmonic yemukati) inofanirwa kutsanangurwa. Inowanzo kuratidzwa seyakazara waveform kukanganisa kweinobuda voltage, kukosha kwayo hakufanire kudarika 5% (imwe-chikamu chinobuda chinobvumira 10%). Sezvo iyo yakakwira-yakarongeka harmonic yazvino kubuda neiyo inverter ichaunza kurasikirwa kwakawedzera senge eddy ikozvino pane inductive mutoro, kana iyo waveform kukanganisa kweiyo inverter yakakura kwazvo, zvinokonzeresa kupisa kwakanyanya kwezvinhu zvinotakura, izvo zvisingaite kuchengetedzwa kwemidziyo yemagetsi uye inokanganisa zvakanyanya hurongwa. kushanda zvakanaka.
3. Rated output frequency
Kune mitoro inosanganisira mota, senge muchina wekuwachisa, mafiriji, nezvimwe, nekuti iyo yakakwana frequency yemota ndeye 50Hz, frequency yakakwira zvakanyanya kana yakaderera, izvo zvinokonzeresa kuti michina kupisa uye kuderedza kushanda zvakanaka uye hupenyu hwesevhisi. yehurongwa. Iyo inobuda frequency inofanirwa kuve yakagadzikana kukosha, kazhinji iyo simba frequency 50Hz, uye kutsauka kwayo kunofanirwa kunge kuri mukati ± 1% pasi pemamiriro ekushanda akajairwa.
4. Mutoro simba chinhu
Kuratidza kugona kweiyo inverter kutakura inductive kana capacitive mitoro. Iyo simba remutoro chinhu che sine wave inverter ndeye 0.7 kusvika 0.9, uye iyo yakayerwa kukosha ndeye 0.9. Muchiitiko cheimwe simba rekutakura, kana simba remagetsi re inverter rakaderera, simba rinodiwa re inverter richawedzera, izvo zvichawedzera mari uye kuwedzera simba rinoratidzika re AC circuit ye photovoltaic system. Sezvo ikozvino inowedzera, kurasikirwa kuchawedzera, uye kushanda kwehurongwa kuchadererawo.
5. Inverter kunyatsoshanda
Kushanda kweiyo inverter kunoreva chiyero chesimba rinobuda kune simba rekuisa pasi pemamiriro ekushanda akatsanangurwa, anotaridzwa sechikamu. Muzhinji, iyo yezita rekushanda kweiyo photovoltaic inverter inoreva kune yakachena kuramba mutoro, pasi pe80% mutoro. s kunyatsoshanda. Sezvo mari yakawanda ye photovoltaic system yakakwirira, kushanda kwe photovoltaic inverter kunofanira kukwidziridzwa, mari yehurongwa inofanira kuderedzwa, uye mari-inoshanda ye photovoltaic system inofanira kuvandudzwa. Parizvino, hunyanzvi hwezita hwemainverters ari pakati pe80% ne95%, uye kushanda kwepasi-simba inverters kunodiwa kuti ive isingasviki 85%. Muchigadziro chaicho chekugadzira photovoltaic system, kwete chete inofanira kusarudzwa inverters yepamusoro-soro, asi panguva imwe chete, chirongwa chacho chinofanira kunge chakanyatsogadziriswa kuita kuti photovoltaic system load load ishande pedyo nepamusoro pekugadzirisa zvakanyanya sezvinobvira.
6. Yakatemerwa yakabuda ikozvino (kana yakatemerwa kubuda simba)
Inoratidza iyo yakatemerwa kubuda ikozvino kweiyo inverter mukati meyakatarwa mutoro simba factor range. Zvimwe zvigadzirwa zve inverter zvinopa iyo yakatemerwa kubuda simba, iyo inoratidzwa muVA kana kVA. Iyo yakayerwa kugona kweiyo inverter ndipo painobuda simba chinhu chiri 1 (kureva pure resistive load), iyo yakayerwa inobuda voltage ndicho chigadzirwa cheyakayerwa yakabuda ikozvino.
7. Matanho ekudzivirira
Inverter ine mashandiro akanaka anofanirwawo kunge aine mabasa ekudzivirira akakwana kana matanho ekutarisana neakasiyana mamiriro asina kujairika panguva yekushandiswa chaiko, kuitira kuti inverter pachayo uye zvimwe zvikamu zvehurongwa zvisakanganiswe.
(1) Input undervoltage policyholder:
Kana iyo yekupinda voltage yakadzikira kupfuura 85% yeyakayerwa voltage, iyo inverter inofanirwa kuve nekudzivirira uye kuratidza.
(2) Input overvoltage insurance account:
Kana iyo yekupinda voltage yakakwira kupfuura 130% yeyakayerwa voltage, iyo inverter inofanirwa kuve nekudzivirira uye kuratidza.
(3) Overcurrent kudzivirira:
Kuchengetedzwa kwepamusoro-ikozvino kwe-inverter kunofanira kukwanisa kuita nguva yakakodzera apo mutoro wacho uri pfupi-inotenderera kana kuti ikozvino inodarika kukosha kunobvumirwa, kuitira kuti irege kukuvadzwa nekuputika ikozvino. Kana iyo yekushanda ikozvino inodarika 150% yemutengo wakayerwa, iyo inverter inofanirwa kukwanisa kuzvidzivirira.
(4) Output short-circuit garandi
Iyo inverter yenguva pfupi-yekudzivirira yekudzivirira nguva haifanirwe kudarika 0.5s.
(5) Input reverse polarity dziviriro:
Apo matanda akanaka uye asina kunaka emagetsi ekupinza akadzorerwa shure, inverter inofanira kuva nekudzivirira basa uye kuratidza.
(6) Kudzivirira mheni:
Iyo inverter inofanirwa kuve nekudzivirira mheni.
(7) Pamusoro pekudzivirira kwekushisa, nezvimwe.
Uye zvakare, kune inverters isina voltage kudzikamisa matanho, iyo inverter inofanirwawo kuve neyakabuda overvoltage ekudzivirira matanho ekudzivirira mutoro kubva mukukuvadzwa kwepamusoro.
8. Maitiro ekutanga
Chimiro kugona kweiyo inverter kutanga nemutoro uye kuita panguva yekushanda kwesimba. Iyo inverter inofanirwa kuvimbiswa kutanga yakavimbika pasi peyakayerwa mutoro.
9. ruzha
Transformers, filter inductors, electromagnetic switch uye mafeni mumagetsi emagetsi emagetsi zvese zvinoburitsa ruzha. Kana iyo inverter iri mukushanda kwakajairika, ruzha rwayo harufanire kudarika 80dB, uye ruzha rweinverter diki harufanire kudarika 65dB.
Nguva yekutumira: Feb-08-2022
