Iimbangela kunye nezisombululo zegridi-eqhagamshelwe kwikhabhinethi i-tripping ye-photovoltaic power station

Njengoko imfuno yehlabathi yamandla ahlaziyekayo iqhubeka ikhula, ukuveliswa kwamandla e-photovoltaic njengenxalenye ebalulekileyo yamandla acocekileyo, ukusetyenziswa kwayo kuninzi kwaye kuninzi. Inkqubo edibeneyo yegridi yesikhululo samandla e-photovoltaic kunye negridi yamandla isitshixo sokuqonda ukusetyenziswa ngokufanelekileyo kwenkqubo yokuvelisa amandla e-photovoltaic, phakathi kwayo indima "yekhabhinethi edityaniswe negridi ye-photovoltaic" ibalulekile. Nangona kunjalo, kwinkqubo yokusebenza kwegridi edibeneyo yesikhululo samandla e-photovoltaic, ingxaki ye-photovoltaic grid-eqhagamshelwe kwikhabhinethi i-tripping ivame ukwenzeka.

Okokuqala, amacandelo angundoqo ekhabhinethi edibeneyo yegridi ye-photovoltaic iquka:
Isixhobo: Iguqula umsinga othe ngqo ube ngumsinga otshintshanayo ohlangabezana nefrikhwensi kunye neemfuno zombane wegridi.
Isixhobo sokukhusela: kubandakanywa ukugqithisa, ukugqithisa, ukukhuselwa rhoqo, ukukhuselwa komhlaba, njl., kunokunqumla ukudibanisa kunye negridi yamandla xa igridi yamandla ingaqhelekanga, ukukhusela umonakalo kwisixhobo se-photovoltaic.
Inkqubo yokubeka iliso: Ukujongwa kwexesha lokwenyani lombane wegridi yamandla, okwangoku, ukuphindaphinda kunye nezinye iiparamitha zokuqinisekisa ukusebenza okuqhelekileyo kwenkqubo.

Okwesibini, izizathu eziqhelekileyo ze-photovoltaic grid-eqhagamshelwe kwikhabhinethi yokukhwela
I-Pv grid-eqhagamshelwe kwikhabhathi yokukhubeka idla ngokubangelwa ziimpazamo ezahlukeneyo zombane okanye ukungahambi kakuhle kwenkqubo. Izizathu ezithile ziquka le miba ilandelayo:

Ukukhusela ngaphezulu: Xa isiphaluka esifutshane, ukugqithiswa okanye ezinye iziphene zombane zenzeke kwigridi yamandla, i-current ingadlula kakhulu uluhlu oluqhelekileyo lokusebenza, okubangelwa ukuqaliswa kwesixhobo sokukhusela esigqithisiweyo sekhabhinethi edibeneyo yegridi ye-photovoltaic. Oku kukuthintela imisinga ephezulu ukuba ibangele umonakalo kwizixhobo, ngakumbi izixhobo ezibalulekileyo ezifana ne-inverters. Xa i-overcurrent fault iyenzeka, ikhabhinethi edibeneyo yegridi ngokuqhelekileyo ikhupha ngokukhawuleza isikhululo samandla se-photovoltaic kwigridi.

I-Overtage okanye i-undervoltage: Ukuguquguquka kwe-voltage kwigridi ngomnye unobangela oqhelekileyo wokukhubeka. Isixhobo sokukhusela i-overvoltage esakhelwe ngaphakathi kunye ne-undervoltage yokukhusela kwikhabhinethi edibeneyo yegridi ye-PV inokubeka iliso kwinguqu ye-voltage yegridi ngexesha langempela. Xa i-voltage idlula umda omiselweyo, ikhabhinethi edityaniswe ngegridi ye-PV iya kubangela ukukhuselwa kohambo ukunqanda umonakalo wesixhobo obangelwa ngumbane ophezulu, okanye ayikwazi ukunika umbane ozinzileyo xa umbane uphantsi kakhulu.

Ukuphindaphinda okungaqhelekanga: Ukuphindaphinda okungaqhelekanga kwegridi yamandla (njengokuphindaphinda ngaphaya koluhlu oluvumelekileyo lwe-50Hz okanye i-60Hz) luya kukhokelela kumonakalo ohambelanayo wegridi yamandla kunye nesikhululo samandla e-photovoltaic, kwaye emva koko wenze i-inverter ayikwazi ukusebenza ngokuqhelekileyo. Xa i-frequency yegridi yamandla isuka kuluhlu oluqhelekileyo, isixhobo sokukhusela i-frequency ye-photovoltaic grid-eqhagamshelwe kwikhabhinethi iya kuqala kwaye ikhuphe kwigridi yamandla ukuphepha ukuchaphazela izixhobo ze-photovoltaic.

Ukusilela kwesiguquli: I-inverter yenye yezinto eziphambili zesikhululo samandla e-photovoltaic, kunye nokungaphumeleli kwayo (njengokushisa, ukugqithisa, ukuhluleka kwe-hardware, njl.) Esinye sezizathu ezibalulekileyo zohambo lwekhabhinethi oludityaniswe negridi. Ukuba i-inverter ayiphumelelanga ukuguqula i-DC kwi-AC, okwangoku ayihambelani neemfuno zegridi yamandla, ivuselela indlela yokukhusela yekhabhinethi edibeneyo yegridi.

Ukungaphumeleli kokumisela: Ukuba inkqubo yokumisa isikhululo samandla e-photovoltaic ayiphumelelanga, inokubangela ukuvuza kwangoku. Ikhabhinethi edibeneyo yegridi idla ngokuxhotyiswa ngomsebenzi wokukhusela umhlaba, kwaye xa kufunyenwe ukuvuza okanye impazamo yomhlaba, iya kunqumla ngokuzenzekelayo uxhulumaniso phakathi kwesikhululo samandla e-photovoltaic kunye negridi yokuqinisekisa ukhuseleko lombane.

Iingxaki zomgangatho wegridi: Ukuguquguquka kumgangatho wegridi, njengokungcoliseka kwe-harmonic, ukuguqulwa kwamandla ombane okanye ukusebenza ngokutshintsha rhoqo, kunokubangela ukuba ikhabhinethi eqhagamshelwe kwi-PV ihambe. Nangona iinkampani zegridi zihlala zigcina umgangatho wegridi uzinzile, kwezinye iindawo, xa igridi iguquguquka kakhulu, izityalo zamandla e-photovoltaic zinokuchaphazeleka.

Okwesithathu, ukusombulula ingxaki yokukhwela i-photovoltaic grid-eqhagamshelwe kwikhabhinethi
Ukuze kuncitshiswe iziganeko ze-photovoltaic grid-eqhagamshelwe kwikhabhinethi ehamba kunye nokuqinisekisa ukuba isikhululo samandla se-photovoltaic esizinzile segridi kunye negridi yamandla, kuyacetyiswa ukuba uthathe amanyathelo alandelayo:

Uvavanyo kunye nokugcinwa rhoqo: Ukugcinwa rhoqo kunye nokuhlolwa kweekhabhinethi ezixhunyiwe kwigridi ye-photovoltaic, kubandakanywa uvavanyo olubanzi lwee-inverters, izixhobo zokukhusela zangoku, iinkqubo zokumisa umhlaba, njl. Ngale ndlela, iingxaki ezinokuthi zibonwe ngexesha elifanelekileyo kwaye umngcipheko wokungaphumeleli kwezixhobo ungancitshiswa.

Ufezekiso lweMiseto eqhagamshelwe kwigridi: Kwinkqubo edibeneyo yegridi yezikhululo zamandla e-photovoltaic, i-parameter setting ye-inverter ibalulekile. Qinisekisa ukuba i-voltage ephumayo kunye ne-frequency ye-inverter idityaniswa kunye negridi yamandla, kunye nokulungelelanisa kwangexesha iiparamitha zokuvelisa umbane wesikhululo samandla se-photovoltaic ngokuguquguquka kwegridi yamandla ukuphepha ukukhubeka okubangelwa yi-voltage okanye ukungazinzi kwamaza.

Ukusetyenziswa kwezixhobo ezikumgangatho ophezulu: Ukusetyenziswa kwe-photovoltaic inverters ephezulu, iikhabhinethi ezixhunyiwe kwigridi kunye nezinye izixhobo zombane zinceda ukuphucula ukuzinza nokuthembeka kwenkqubo. Ukukhetha izixhobo ezinokunyamezela okuphezulu kunye nokuqwalasela utshintsho kumgangatho wegridi kuyilo kunokunciphisa kakhulu umngcipheko wokukhubeka.

Yomeleza ukhetho lweendawo zofikelelo kwigridi: Ukukhethwa kweendawo zokufikelela kwizikhululo zamandla e-photovoltaic kufuneka ziqwalasele umthwalo wegridi, ukuzinza kunye nomthamo wokuthumela igridi. Ngokukodwa kwiindawo apho igridi yamandla ingazinzi ngakumbi, ukulungelelaniswa kunye nenkampani yokusebenza yegridi yamandla kufuneka iqiniswe ukuze kuqinisekiswe ukuba iimeko zombane zamanqaku ahambelanayo zihlangabezana neemfuno.

Yomeleza uqeqesho lwabasebenzi bobugcisa: uqeqesho lobuchwephesha bokusebenza kunye nokugcinwa kwabasebenzi bezikhululo zamandla e-photovoltaic ukuqinisekisa ukuba bayayilawula inkqubo yokusebenza kunye neendlela zonyango olungxamisekileyo lwezikhululo zamandla e-photovoltaic, ezinokuthi ziphephe ngokufanelekileyo ukukhubeka kweekhabhathi ezixhunyiwe kwigridi ngenxa yokusebenza ngokungafanelekanga.