Kusistimu yokugcina amandla, isiguquli esihlakaniphile (noma isiguquli sesitoreji samandla) siyidivayisi yokuguqula amandla kagesi ngezindlela ezimbili phakathi kwesistimu yebhethri kanye negridi yamandla (kanye/noma ukulayisha) ingalawula inqubo yokushaja nokukhipha ibhethri.Ngokuguqulwa kwe-AC-DC, ingahlinzeka ngokuqondile ngomthwalo we-AC ngaphandle kwegridi.
Iziguquli zokugcina amandla zisetshenziswa kakhulu ezinhlelweni zamandla kagesi, ezokuthutha zikaloliwe, ezempi, ezisekelwe ogwini, imishini kaphethiloli, izimoto zamandla amasha, ukukhiqizwa kwamandla omoya, i-solar photovoltaic kanye neminye imikhakha, ukuze kuzuzwe ukugeleza kwamandla okuyi-bi-directional ekushebeni okuphezulu kwegridi kanye ukugcwaliswa kwesigodi, ukuguquguquka kwamandla okwenza bushelelezi, ukugaywa kabusha kwamandla, amandla ayisipele, ukuxhunywa kwegridi yamandla avuselelekayo njll, ukusekela ngenkuthalo ugesi wegridi kanye nemvamisa kanye nokwenza ngcono ikhwalithi yokuphakelwa kwamandla.
Ingasetshenziswa ohlelweni lokugcina amandla ohlangothini lokuphehla amandla, ohlangothini lokudlulisela nokusabalalisa lwegridi yamandla kanye nohlangothi lwabasebenzisi bohlelo lwamandla, ikakhulukazi olusetshenziswa kumoya wamandla avuselelekayo kanye nezinhlelo zamandla e-solar PV hybrid, iziteshi zokudlulisela nokusabalalisa. , ukugcinwa kwamandla ezimbonini nezohwebo kanye nesitoreji samandla egridi encane esabalalisiwe, iziteshi zokulondoloza nezokushaja njll.
Ukuguquguquka kwegridi okuqinile, ikhwalithi yamandla aphezulu kanye nama-harmonics aphansi;ukushaja okukabili kanye nokuphathwa kokukhipha kwebhethri ukuze kunwetshwe impilo yebhethri;ngama-algorithms ebhethri ukushaja ibhethri ngendlela ephumelelayo nephephile;ububanzi be-voltage ye-DC yezinhlelo zokusebenza ezihlukahlukene zokushaja ibhethri;ubuchwepheshe bezinga lesithathu lwe-topology lokuguqulwa kwamandla okuphumelelayo ngezinga lokuguqulwa elifika ku-97.5%;ukusetshenziswa kwamandla okulindile okuphansi nokulahlekelwa okungalayishiwe okuphansi;ukuvikelwa kwegridi esebenzayo, nemisebenzi yokuqapha nokuvikela amaphutha;ukuqapha kwesikhathi sangempela kwesimo sokusebenza kanye nendawo enephutha elisheshayo;ukusekela amayunithi amaningi wokuguqulela ukuxhumana okuhambisanayo ukuze kuhlangatshezwane nezidingo zezinga eliphezulu lamandla;ngokusebenza okuxhunywe kugridi nokungangeni kwegridi, okusekela ukushintshwa okuzenzakalelayo okuhlakaniphile kwemodi exhunywe kugridi kanye ne-off-grid;ukugcinwa kwangaphambili nokufakwa kalula, okuguquguqukayo kumasayithi ohlelo lokusebenza ahlukahlukene.
Ingasetshenziswa ohlelweni lokugcina amandla ohlangothini lokuphehla amandla, ohlangothini lokudlulisela nokusabalalisa lwegridi yamandla kanye nohlangothi lwabasebenzisi bohlelo lwamandla, ikakhulukazi olusetshenziswa kumoya wamandla avuselelekayo kanye nezinhlelo zamandla e-solar PV hybrid, iziteshi zokudlulisela nokusabalalisa. , ukugcinwa kwamandla ezimbonini nezohwebo kanye nesitoreji samandla egridi encane esabalalisiwe, iziteshi zokulondoloza nezokushaja njll.
Ingasetshenziswa ohlelweni lokugcina amandla ohlangothini lokuphehla amandla, ohlangothini lokudlulisela nokusabalalisa lwegridi yamandla kanye nohlangothi lwabasebenzisi bohlelo lwamandla, ikakhulukazi olusetshenziswa kumoya wamandla avuselelekayo kanye nezinhlelo zamandla e-solar PV hybrid, iziteshi zokudlulisela nokusabalalisa. , ukugcinwa kwamandla ezimbonini nezohwebo kanye nesitoreji samandla egridi encane esabalalisiwe, iziteshi zokulondoloza nezokushaja njll.
Ukuvumelana nezimo kwegridi okuqinile:
Ikhwalithi yamandla aphezulu kanye nama-harmonics aphansi;
Ukusebenza kwe-anti-islanding kanye ne-islanding, ukusekelwa kokuhamba nge-voltage ephezulu/ephansi/eziro, ukuthumela amandla ngokushesha.
Ukuphathwa kwebhethri okuphelele:
Ukushaja okukabili nokuphathwa kokukhipha kwebhethri ukuze kunwetshwe impilo yebhethri.
Ngama-algorithms ebhethri ukushaja ibhethri ngendlela ephumelelayo nephephile;
Ububanzi be-voltage ye-DC ebanzi yezinhlelo zokusebenza ezihlukene zokushaja amabhethri.
Izindlela zokusebenza eziningi, ngokushajwa kwangaphambili, ukushaja okungaguquki kwamanje / kagesi, ukushajwa kwamandla njalo nokukhipha, ukushajwa okungapheli njll.
Ukusebenza kahle kokuguqula:
Ubuchwepheshe bezinga lesithathu lwe-topology lokuguqulwa kwamandla okusebenzayo ngezinga lokuguqulwa elifika ku-97.5%;
1.1Izikhathi zokusebenza kokugcwala ngokweqile kwesikhathi eside, ukuhlinzeka ngosekelo oluqinile lwegridi yokusebenza iyonke ngokokubili ukusebenza kahle nokuthembeka.
Ukusetshenziswa kwamandla okulindile okuphansi nokulahlekelwa okungalayishiwe okuphansi.
Ukuphepha nokuthembeka:
Ukuvikelwa kwegridi okusebenzayo, okunokuqapha amaphutha nemisebenzi yokuvikela.
Ukuqapha kwesikhathi sangempela kwesimo sokusebenza kanye nendawo enephutha elisheshayo.
Ukuhambisana okuqinile:
Isekela ukuthunyelwa kwamagridi amaningi ukuze uthole isinxephezelo samandla asebenzayo nesisebenzayo.
Sekela amayunithi amaningi wokuguqulela ukuxhumana okuhambisanayo ukuze uhlangabezane nezidingo zezinga eliphezulu lamandla.
Ngokusebenza okuxhunywe kugridi nokungangeni kwegridi, okusekela ukushintshwa okuzenzakalelayo okuhlakaniphile kwemodi exhunywe kugridi kanye ne-off-grid.
Ukugcinwa kwangaphambili nokufakwa kalula, okuguquguqukayo kumasayithi ohlelo lokusebenza ahlukahlukene.
Umsebenzi oyinhloko
1) Umsebenzi wokulawula oyisisekelo
Ukulawula okuxhunywe kwigridi kokushaja nokukhipha amandla njalo;
I-voltage engaguquki exhunywe kwigridi kanye nokushajwa kwamanje okungashintshi;
Isilawuli se-Off-grid V/F:
Ukulawula ukulawula isinxephezelo samandla asebenzayo;
Ukulawula ukushintsha okushelelayo kwe-on-grid/off-grid;
Umsebenzi wokuvikela i-anti-islanding kanye nokutholwa kwe-islanding ngokushintsha imodi;
Ukulawula ukuhamba ngephutha;
2) Izincazelo zomsebenzi othize zimi kanje:
Ukulawula ukushaja nokukhishwa kwebhethri yokugcina amandla: Isiguquli sesitoreji samandla singashaja futhi sikhiphe ibhethri.Amandla okushaja namandla okukhulula awokukhetha.Izindlela ezahlukahlukene zokushaja nokukhipha imiyalo zilungiswa isikrini esithintwayo noma ikhompuyutha engusokhaya.
Izindlela zokushaja zihlanganisa ukushaja okungaguquki kwamanje (DC), ukushaja kwe-voltage engaguquki (DC), ukushaja kwamandla okungaguquki (DC), ukushaja kwamandla okungaguquki (AC), njll.
Amamodi okukhipha ahlanganisa ukukhishwa okungaguquki kwamanje (DC), ukuchithwa kwe-voltage engaguquki (DC), ukukhipha amandla okungaguquki (DC), ukukhipha amandla okungaguquki (AC), njll.
Ukulawula amandla asebenzayo: Iziguquli zesitoreji samandla zihlinzeka ngokulawula isici samandla kanye nesilinganiso samandla asebenzayo.Ukulawulwa kwesici samandla kanye nesilinganiso samandla asebenzayo kufanele kuzuzwe ngokujova amandla asebenzayo.
Lo msebenzi wokuguqula ungenziwa lapho kwenziwa kokubili ukushaja nokukhipha imisebenzi.Ukusetha amandla asebenzayo kwenziwa ikhompuyutha engusokhaya noma isikrini sokuthinta.
I-voltage ephumayo nokuzinza kwamafrikhwensi: Iziguquli zokugcina amandla zingalungisa amandla kagesi aphumayo kanye nokuzinza kwefrikhwensi kumasistimu axhunywe kugridi ngokulawula amandla asebenzayo namandla asebenzayo.Ukufeza lo msebenzi, isitshalo esikhulu sokugcina amandla siyadingeka.
Ukulawula isiguquli esizimele segridi ehlukanisiwe: Isiguquli sesitoreji samandla sinomsebenzi wokushintshashintsha ozimele kusistimu yegridi ehlukanisiwe, engasimamisa i-voltage ephumayo kanye nemvamisa futhi inikeze amandla emithwalweni ehlukahlukene.
Ukulawulwa okuhambisanayo kwe-inverter okuzimele: Kuzinhlelo zokusebenza zesikali esikhulu, umsebenzi ozimele we-inverter parallel weziguquli zesitoreji samandla wandisa ukuphindaphindeka nokuthembeka kwesistimu.Amayunithi amaningi okuguqula angaxhunywa ngokuhambisana.
Qaphela: Uxhumano oluhambisanayo lwe-inverter luwumsebenzi owengeziwe.Isiguquli sesitoreji samandla sishintsha ngaphandle komthungo phakathi kwesiguquli esixhumeke kugridi nesizimele, sidinga iswishi yangaphandle yokushintsha emile.
Isixwayiso sokwehluleka kwamadivayisi angukhiye: Isexwayiso sangaphambi kwesikhathi sesimo sokusetshenziswa nezinkomba zokwehluleka kwamadivayisi angukhiye weziguquli zesitoreji samandla ukuze kuthuthukiswe ubuhlakani bomkhiqizo.
3.Ukushintsha isimo
Uma isiguquli sinikwa amandla ekuvaleni kokuqala, isistimu yokulawula izoqedela ukuzihlola ukuze iqinisekise ubuqotho bezinhlelo zokulawula nezinzwa.Isikrini sokuthinta kanye ne-DSP ziqala ngokujwayelekile futhi isiguquli singena esimweni sokuvala shaqa.Ngesikhathi sokuvalwa, isiguquli sesitoreji samandla sivimba ama-pulses e-IGBT futhi sinqamule izixhumi ze-AC/DC.Uma ikwi-standby, isiguquli sesitoreji samandla sivimba ama-pulses e-IGBT kodwa sivale izixhumi ze-AC/DC futhi isiguquli sikokubekwe eceleni okushisayo.
● Vala shaqa
Isiguquli sesitoreji samandla sikumodi yokuvala shaqa lapho kungekho miyalo yokusebenza noma ukuhlela okutholiwe.
Kumodi yokuvala shaqa, isiguquli sithola umyalo wokusebenza ovela esikrinini esithintwayo noma kukhompuyutha ephezulu bese sidluliswa sisuka kumodi yokuvala siye kumodi yokusebenza lapho izimo zokusebenza zifinyelelwa.Kumodi yokusebenza, isiguquli sisuka kumodi yokusebenza siye kumodi yokuvala shaqa uma umyalo wokuvala shaqa wamukelwe.
● Okubekwe eceleni
Kokubekwe eceleni noma kumodi yokusebenza, isiguquli sithola umyalo wokulinda ovela kusikrini esithintwayo noma kwikhompyutha ephezulu bese singena kumodi yokulinda.Kumodi yokulinda, isixhumi se-AC ne-DC sesiguquli sihlala sivaliwe, isiguquli singena kumodi yokusebenza uma umyalo wokusebenza noma ukuhlela kwamukelwe.
● Ukugijima
Izindlela zokusebenza zingahlukaniswa zibe izindlela ezimbili zokusebenza: (1) imodi yokusebenza ngaphandle kwegridi kanye (2) nemodi yokusebenza exhunywe kugridi.Imodi exhunywe kugridi ingasetshenziselwa ukushaja nokukhipha.Kumodi exhunywe kugridi, isiguquli siyakwazi ukwenza ukulawulwa kwekhwalithi yamandla nokulawula amandla asebenzayo.Kumodi ye-off-grid, isiguquli singanikeza i-voltage ezinzile kanye nokukhishwa kwefrikhwensi kumthwalo.
● Iphutha
Lapho umshini ungasebenzi kahle noma izimo zangaphandle zingekho phakathi kwebanga lokusebenza elivumelekile lomshini, isiguquli sizoyeka ukusebenza;nqamula othintana nabo be-AC ne-DC ngokushesha ukuze umjikelezo oyinhloko womshini unqanyulwe ebhethri, igridi noma umthwalo, lapho ungena esimweni sephutha.Umshini ungena esimweni sephutha lapho amandla esusiwe futhi iphutha selisusiwe.
3.Imodi yokusebenza
Izindlela zokusebenza zesiguquli zingahlukaniswa zibe izindlela ezimbili zokusebenza: (1) imodi yokusebenza ngaphandle kwegridi kanye (2) nemodi yokusebenza exhunywe kugridi.
• Imodi exhunywe kwigridi
Kumodi exhunywe kugridi, isiguquli singakwazi ukwenza imisebenzi yokushaja nokukhipha.
Ukushaja kuhlanganisa ukushaja okungaguquki kwamanje (DC), ukushaja kwe-voltage engaguquki (DC), ukushaja kwamandla okungaguquki (DC), ukushaja kwamandla okungaguquki (AC), njll.
Ukushajwa kuhlanganisa ukukhishwa okungaguquki kwamanje (DC), ukukhishwa kwe-voltage engaguquki (DC), ukukhipha amandla okungaguquki (DC), ukukhipha amandla okungaguquki (AC), njll.
• Imodi ye-off-grid
Kumodi ye-off-grid, amabhethri ayakhishwa ukuze anikeze amandla kagesi avamile kanye nemvamisa ye-AC elinganiselwe ku-250kVA ekulayisheni.Kuzinhlelo ze-microgrid, amabhethri angashajwa uma amandla akhiqizwe i-generator yangaphandle emakhulu kunamandla asetshenziswe umthwalo.
• Ukushintsha imodi
Kumodi exhunywe kugridi, ukushintsha phakathi kokushaja nokukhipha isiguquli sokugcina amandla kungenziwa ngokuqondile, ngaphandle kwesidingo sokungena esimweni sokulinda.
Ukushintsha phakathi kwemodi yokushaja nokukhipha kanye nemodi ye-inverter ezimele akunakwenzeka phambi kwegridi.Qaphela: Ngaphandle kwemodi yokushintsha engenamthungo.
Akumele kube khona igridi ukuze isiguquli esizimele sisebenze.Qaphela: Ngaphandle kokusebenza okufanayo.
4.Umsebenzi wokuvikela oyisisekelo
Isiguquli esihlakaniphile sinomsebenzi wokuvikela oyinkimbinkimbi, lapho kwenzeka okuhlukile kwe-voltage okokufaka noma igridi, singasebenza ngempumelelo ukuze sivikele ukusebenza okuphephile kwesiguquli esihlakaniphile kuze kube yilapho okuhlukile kuxazululiwe bese siqhubeka nokukhiqiza ugesi.Izinto zokuvikela zihlanganisa.
• Ukuvikelwa kokuhlehla kwe-polarity yebhethri
• I-DC over-voltage/under-voltage protection
• I-DC over-current
• Ukuvikela uhlangothi lwegridi ngaphezulu/ngaphansi kwe-voltage
• Uhlangothi lwegridi phezu kwesivikelo samanje
• I-grid side phezu/ngaphansi kokuvikelwa kwefrikhwensi
• Imojula ye-IGBT yokuvikela iphutha:Imojula ye-IGBT ukuvikela kwamanje,imojuli ye-GBT yezinga lokushisa elingaphezulu
• Ukuvikelwa kwe-Transformer/Inductor over-temperature
• Ukuvikela ukukhanya
• Ukuvikelwa kwesiqhingi okungahleliwe
• Ukuvikelwa kwe-ambient over-temperature
• Ukuvikela ukwehluleka kwesigaba (ukulandelana kwesigaba okungalungile, ukulahleka kwesigaba)
• Ukuvikelwa kokungalingani kwamandla kagesi we-AC
• Ukuvikelwa kokwehluleka kwabalandeli
• I-AC, DC isivikelo sokungaphumeleli sohlangothi oluyinhloko lwe-contactor
• Ukuvikelwa kokwehluleka kwesampula ye-AD
• Ukuvikelwa kwesekethe emfushane yangaphakathi
• Ingxenye ye-DC ukuvikela okuphezulu kakhulu
Ulwazi lokuxhumana
Inkampani: Fujian Nebula Electronics Co., Ltd
Ikheli: Nebula Industrial Park, No.6, Shishi Road, Mawei FTA, Fuzhou, Fujian, China
Mail: info@e-nebula.com
Ucingo: +86-591-28328897
Ifeksi: +86-591-28328898
Iwebhusayithi: www.e-nebula.com
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