Ukuthunyelwa ngaphandle kweZero vs Ukunciphisa Amandla: Iindlela ezahlukeneyo zokuHlaziya umbane ezichasene nokubuyela umva zichaziwe

Intshayelelo: Ukuhamba koMbane ochasene nokuBuya kwakhona akufani nokuCima iLanga

Njengoko ukufakwa kwezixhobo zelanga kwiindawo zokuhlala nakwiindawo zorhwebo ezincinci kuqhubeka nokukhula,ulawulo lokuhamba kwamandla oluchasene nokubuyela umvaiye yaba yimfuneko ebalulekileyo kwiindawo ezininzi. Abaqhubi begridi baya bethintela okanye bethintela amandla angaphezulu kwe-photovoltaic (PV) ekuthunyelweni kwigridi kawonke-wonke, nto leyo ekhokelela ekubeni abayili beenkqubo bamkele oko kubizwa ngokubangokuchasene nokujika or akukho kuthunyelwa ngaphandleizisombululo.

Nangona kunjalo, kukho ukungaqondani okuxhaphakileyo:
ukuhamba kwamandla ombane okuchasene nokubuyela umva akuthethi ukuba ukucima ngokupheleleyo ukuveliswa kwamandla elanga.

Enyanisweni, kukhoamaqhinga obuchwephesha amaninziukulawula ukuhamba kwamandla okubuyela umva, nganye ineendlela ezahlukeneyo zokwakha iinkqubo, indlela yokuphendula, kunye neemfuno zehardware. Ukuqonda la mahluko kubalulekile ekukhetheni isisombululo esifanelekileyo kwiprojekthi ethile ye-PV.

Eli nqaku lichaza isitshixoamaqhinga okulwa nokuhamba kwamandla okuchasene nokubuyela umva, ithelekisaakukho kuthunyelwa ngaphandlekwayeukunciphisa amandla aguqukayo, kwaye icacisaxa imitha yamandla ekrelekrele iba yinto ebalulekileyokwiluphu yokulawula.

Yintoni iZero Export kwiiNkqubo zeSolar?

Akukho kuthunyelwa ngaphandleibhekisa kwicebo lokulawula aphoAkukho mandla agqithisileyo avunyelweyo ukuba ahambe ukusuka kwinkqubo ye-PV abuyele kwigridiOnke amandla avelisiweyo kufuneka asetyenziswe kwindawo ethile okanye ancitshiswe.

Kwilungiselelo lokuthumela ngaphandle kwe-zero:

• Ukuhamba kwamandla egridi kwindawo yokudibanisa okuqhelekileyo (PCC) kugcinwa kukwi-zero okanye kufutshane no-zero

• Imveliso ye-PV iyancitshiswa nanini na xa ukusetyenziswa kwempahla kwindawo kwehla

• Amandla athunyelwa kwamanye amazwe ayathintelwa ngokukhutheleyo endaweni yokuba ancitshiswe nje kuphela

Le ndlela idla ngokufuneka kwiindawo apho iinkonzo ezithintela ukufakwa kwegridi okanye apho iirhafu zokungenisa amanzi zingafumaneki khona.

Yintoni iDynamic Power Limitting?

Ukunciphisa amandla ashukumisayo(ekwabizwa ngokuba lulawulo olutshintshatshintshayo lokuthumela ngaphandle) sisicwangciso esiguquguqukayo ngakumbi. Endaweni yokunyanzelisa imeko engqongqo yokuthumela ngaphandle kwe-zero ngamaxesha onke, inkquboiyaqhubeka nokulungisa imveliso ye-PV ngokusekelwe kumlinganiselo wamandla egridi wexesha langempela.

Iimpawu eziphambili ziquka:

• Imveliso ye-PV ilandela ngokwahlukeneyo utshintsho lomthwalo

• Iimali ezincinci zokuthumela ngaphandle zinokuvunyelwa okanye zipheliswe njengoko kufuneka

• Impendulo ekhawulezayo kutshintsho lomthwalo xa kuthelekiswa nemida engaguqukiyo

Ulawulo olutshintshatshintshayo lufanelekile ngokukodwa kwiinkqubo ze-PV zokuhlala ezinemithwalo eguquguqukayo, indawo yokugcina amandla, okanye iitshaja ze-EV.

Ukuthunyelwa ngaphandle kweZero vs Ukunciphisa Amandla aDynamic: Umahluko oPhambili

Olu thelekiso lubonisa umahluko obalulekileyo:
ulawulo lwamandla olutshintshatshintshayo lufuna impendulo yexesha langempela, ngelixa iinkqubo ezisisiseko ezingathumeli ngaphandle zinokuxhomekeka kwizicwangciso ze-inverter ezingashukumiyo.

Leliphi icebo lokulwa nokubuyela umva elifuna imitha yamandla?

Kulapho uyilo oluninzi lweenkqubo lungaphumeleli khona.

Ukuthunyelwa ngaphandle kwe-Inverter okusekelwe kwi-Zero (Ngaphandle kweMitha yangaphandle)

Ezinye ii-inverters zixhasa imisebenzi yangaphakathi yokuthumela ngaphandle ngaphandle zisebenzisa:

• Ukuqonda kwangoku okwakhelwe ngaphakathi

• Imida yokunciphisa amandla ezinzileyo

Nangona zilula, ezi zisombululo zihlala zinengxaki:

• Amaxesha okuphendula acothayo

• Ukuchaneka okubi phantsi kotshintsho olukhawulezayo lomthwalo

• Ukuzivumelanisa nezimo kwiindawo ezinemithwalo emininzi

Basenokusebenza phantsi kweemeko ezizinzileyo kodwa bayasokola ekusebenziseni iindawo zokuhlala zokwenyani.

Kutheni uLawulo lwaMandla oluDynamic lufuna iMitha yamandla ehlakaniphileyo

In ulawulo lwamandla olutshintshatshintshayo, Impendulo yamandla egridi yexesha langempela evela kwimitha yamandla ekrelekrele ibalulekile.

Ngaphandle kokulinganisa ngokuchanekileyo nangexesha langempela kwindawo yoqhagamshelo lwegridi, inkqubo yolawulo ayinakukwazi ukumisela:

• Nokuba umbane ungeniswa okanye uthunyelwa kwamanye amazwe

• Indlela imveliso ye-PV ekufuneka ilungiswe ngayo ngokukhawuleza

• Ingaba imida yokuthumela ngaphandle iyagqithwa na ngexesha leziganeko zexeshana

Imitha yamandla ekrelekrele ibonelela:

• Ukulinganiswa okuqhubekayo kokungeniswa/ukuthunyelwa kwegridi

• Idatha yamandla enesisombululo esiphezulu

• Isignali yokulawula ethembekileyo ye-inverter okanye i-EMS logic

Indima ye-PC321 ka-Owon kuLawulo lokuHamba koMbane oluchasene nokuBuya kweNdlela

Kwiinkqubo zokuhamba kwamandla ezichasene nokubuyela umva ezinamandla,Imitha yamandla ehlakaniphileyo ye-PC321 isebenza njengeumaleko wokuva ngexesha langempelakwindawo yokudibanisa igridi.

Ngokukodwa, iPC321:

• Ilinganisa amandla egridi ngexesha langempela (ukungenisa nokuthumela ngaphandle) kwi-PCC

• Ibonelela ngempendulo ekhawulezayo efanelekileyo kwiiluphu zolawulo olutshintshatshintshayo

• InkxasoI-WiFi, i-MQTT, kunye ne-Zigbeeiindlela zonxibelelwano

• Ivumela iinkqubo zolawulo ukuba ziphendule ngaphakathiimijikelo yohlengahlengiso yemizuzwana engaphantsi kwemibini, ukuhlangabezana neemfuno eziqhelekileyo zolawulo lwe-PV yokuhlala

Ngokubonelela ngedatha yamandla egridi echanekileyo nefike ngexesha, i-PC321 ivumela ii-inverters okanyeiinkqubo zolawulo lwamandla to lawula rhoqo imveliso ye-PV, ukuthintela ukuhamba kwamandla okujika umva ngaphandle kokuvala ukuveliswa ngokungeyomfuneko.

Okubalulekileyo kukuba, i-PC321 ayizilawuli ngokwayo—iyazenzayenza ulawulo lusebenze ngokubonelela ngomlinganiselo othembekileyo, nto leyo esisiseko salo naliphi na icebo elisebenzayo lokunciphisa amandla aguqukayo.

Ukukhetha icebo elifanelekileyo lokulwa nokubuyela umva

Ukukhetha isisombululo esifanelekileyo sokulwa nokubuyela umva kuxhomekeke kwizinto ezininzi:

• Imigaqo yegridi yendawo kunye nemithetho yokuthumela ngaphandle

• Ukwahluka komthwalo kunye neendlela zokusetyenziswa ekhaya

• Ukubakho kwendawo yokugcina amandla okanye ukutshaja kwe-EV

• Isantya sempendulo esifunekayo kunye nobunzima benkqubo

Kwiimeko ezilula zokuthobela imithetho, ukuthunyelwa ngaphandle kwe-inverter okusekelwe kwi-zero kunokwanela.
Kwiinkqubo ze-PV zokuhlala zanamhlanje ezinemithwalo enamandla,ulawulo lwamandla olusekelwe kwimitha lubonelela ngokusebenza ngcono kakhulu kunye nokusetyenziswa kwamandla.

Isiphelo: Ukuhamba kwamandla okuchasene nokubuyela umva sisicwangciso solawulo, asikokucima

Ukuhamba kwamandla okuchasene nokubuyela umva akuthethi ukuba kuyayeka ukwenziwa kwamandla elanga. Endaweni yoko, kumelaifilosofi yokulawula—ukulinganisela imveliso ye-PV nokusetyenziswa kwexesha langempela kunye nemida yegridi.

Ukuqonda umahluko phakathiakukho kuthunyelwa ngaphandlekwayeukunciphisa amandla aguqukayoinceda abayili beenkqubo ukuba baphephe ukufakelwa okungasebenzi kakuhle kwaye bakhethe uyilo olunikezela zombini ukuthobela kunye nokusebenza kakuhle.

Njengoko iinkqubo ze-PV zisiba krelekrele kwaye zidibene,Ukulinganisa ngexesha langempela kwi-interface yegridi—okuvunyeliswe ziimitha zamandla ezikrelekrele—kuye kwaba yimfuneko esisisekoyokulawula ukuhamba kwamandla okuchasene nokubuyela umva okuphucukileyo.