Ukukhishwa Kwe-Zero-Export vs Umkhawulo Wamandla: Kuchazwa Amasu Ahlukene Okulwa Nokubuyela Emuva Kokuhamba Kwamandla

Isingeniso: Ukugeleza Kwamandla Okulwa Nokubuyela Emuva Akufani Nokucima Ilanga

Njengoba ukufakwa kwemishini yelanga yezindlu nezindawo ezincane zebhizinisi kuqhubeka nokukhula,ukulawula ukugeleza kwamandla okuphikisana nokubuyela emuvasekuyinto ebalulekile ezindaweni eziningi. Abaqhubi begridi banciphisa noma bavimbela amandla e-photovoltaic (PV) amaningi kakhulu ukuthi angathunyelwa kugridi yomphakathi, okuholela abaklami bezinhlelo ukuthi basebenzise lokho okubizwa ngokuthiukuphikisana nokuphambene or akukho ukuthunyelwa kwamanye amazweizixazululo.

Kodwa-ke, ukungaqondi okuvamile kuyaqhubeka:
ukugeleza kwamandla okuphikisana nokubuyela emuva akusho ukuthi kuzovala ngokuphelele ukukhiqizwa kwamandla elanga.

Empeleni, kukhonaamasu amaningi obuchwephesheukulawula ukugeleza kwamandla okubuyela emuva, ngayinye inezakhiwo zesistimu ezahlukene, indlela yokuphendula, kanye nezidingo zehadiwe. Ukuqonda lokhu mehluko kubalulekile ekukhetheni ikhambi elifanele lephrojekthi ethile ye-PV.

Lesi sihloko sichaza isihluthuleloamasu okulwa nokujika kwamandla, kuqhathanisaakukho ukuthunyelwa kwamanye amazwefuthiukukhawulela amandla ashukumisayo, futhi icacisalapho imitha yamandla ehlakaniphile iba yinto ebalulekileku-loop yokulawula.

Kuyini Ukuthunyelwa Kwe-Zero Kuzinhlelo Zelanga?

Akukho ukuthunyelwa ngaphandlekubhekisela esu lokulawula laphoakukho mandla angaphezulu avunyelwe ukugeleza esuka ohlelweni lwe-PV abuyele kugridiWonke amandla akhiqizwayo kumele asetshenziswe endaweni noma ancishiswe.

Kulungiselelo olungenalo ukuthumela ngaphandle:

• Ukugeleza kwamandla egridi endaweni yokuxhumanisa okuvamile (i-PCC) kugcinwa ku-zero noma eduze no-zero

• Ukukhishwa kwe-PV kwehla noma nini lapho ukusetshenziswa kwendawo kwehla

• Amandla athunyelwa kwamanye amazwe avinjelwa ngenkuthalo kunokuba ancishiswe kancane

Le ndlela ivame ukudingeka ezindaweni lapho izinsiza zivimbela khona ukufakwa kwegridi noma lapho amanani okungenisa angatholakali khona.

Kuyini Ukukhawulelwa Kwamandla Ashukumisayo?

Umkhawulo wamandla ashukumisayo(okubizwa nangokuthi ukulawula ukuthumela kwamanye amazwe okuguquguqukayo) kuyisu eliguquguqukayo kakhudlwana. Esikhundleni sokuphoqelela umbandela oqinile wokuthumela ngaphandle kwe-zero ngaso sonke isikhathi, uhleloilungisa njalo ukuphuma kwe-PV ngokusekelwe ekulinganisweni kwamandla egridi ngesikhathi sangempela.

Izici ezibalulekile zifaka:

• Ukukhishwa kwe-PV kulandela ngokuguquguqukayo ukuhlukahluka komthwalo

• Imingcele emincane yokuthumela ngaphandle ingavunyelwa noma iqedwe njengoba kudingeka

• Impendulo esheshayo ezinguqukweni zomthwalo uma kuqhathaniswa nemikhawulo engaguquki

Ukulawula okunamandla kufaneleka kakhulu ezinhlelweni ze-PV zokuhlala ezinemithwalo eguquguqukayo, isitoreji samandla, noma amashaja e-EV.

Ukukhipha Okungaphelele vs Ukunciphisa Amandla Ashukumisayo: Umehluko Obalulekile

Lokhu kuqhathanisa kuqokomisa umehluko obalulekile:
ukulawula amandla ashukumisayo kudinga impendulo yesikhathi sangempela, kuyilapho izinhlelo eziyisisekelo ezingathumeli ngaphandle zingase zithembele kuzilungiselelo ze-inverter ezingashintshi.

Yiliphi Isu Lokulwa Nokuhlanekezela Elidinga Imitha Yamandla?

Yilapho imiklamo eminingi yesistimu ihluleka khona.

Ukuthunyelwa Okungaphelele Okusekelwe Ku-Inverter (Ngaphandle Kwemitha Yangaphandle)

Amanye ama-inverter asekela imisebenzi yangaphakathi yokuthumela ngaphandle esebenzisa:

• Ukuzwa kwamanje okwakhelwe ngaphakathi

• Imikhawulo yokukhawulela amandla egxilile

Nakuba zilula, lezi zixazululo zivame ukuhlushwa yi:

• Izikhathi zokuphendula ezisheshayo

• Ukunemba okungekuhle ngaphansi kokushintsha komthwalo okusheshayo

• Ukuzivumelanisa nezimo okulinganiselwe ezindaweni ezinemithwalo eminingi

Bangase basebenze ezimweni ezizinzile kodwa bahlupheke ngokusetshenziswa kwezindlu zangempela.

Kungani Ukulawulwa Kwamandla Ashukumisayo Kudinga Imitha Yamandla Ehlakaniphile

In ukulawula amandla ashukumisayo, Impendulo yamandla egridi yesikhathi sangempela evela kumitha yamandla ehlakaniphile ibalulekile.

Ngaphandle kokulinganisa okunembile, kwesikhathi sangempela endaweni yokuxhuma igridi, uhlelo lokulawula alukwazi ukunquma:

• Kungakhathaliseki ukuthi ugesi ungeniswa noma uthunyelwa kwamanye amazwe

• Ukuthi umkhiqizo we-PV kufanele ulungiswe ngokushesha kangakanani

• Ukuthi imikhawulo yokuthumela ngaphandle iyadlulwa yini ngesikhathi semicimbi yesikhashana

Imitha yamandla ehlakaniphile inikeza:

• Ukulinganisa okuqhubekayo kokungenisa/ukuthumela ngaphandle kwegridi

• Idatha yamandla enesisombululo esiphezulu

• Isignali yokulawula ethembekile ye-inverter noma i-EMS logic

Indima ye-PC321 ka-Owon ekuLawuleni Ukugeleza Kwamandla Okulwa Nokubuyela Emuva

Ezinhlelweni zokugeleza kwamandla ezilwa nokubuyela emuva ezinamandla,Imitha yamandla ehlakaniphile ye-PC321 isebenza njengeisendlalelo sokuzwa kwesikhathi sangempelaendaweni yokuxhuma igridi.

Ngokuqondile, i-PC321:

• Ilinganisa amandla egridi yesikhathi sangempela (ukungenisa nokuthumela ngaphandle) ku-PCC

• Inikeza impendulo esheshayo efanelekela ama-loop okulawula aguqukayo

• UsekeloI-WiFi, i-MQTT, kanye ne-Zigbeeizinketho zokuxhumana

• Ivumela izinhlelo zokulawula ukuthi ziphendule ngaphakathiimijikelezo yokulungisa yemizuzwana emi-2, ukuhlangabezana nezidingo zokulawula i-PV ezivamile zokuhlala

Ngokuhlinzeka ngedatha yamandla egridi enembile futhi efika ngesikhathi, i-PC321 ivumela ama-inverter nomaizinhlelo zokuphatha amandla to lawula njalo umkhiqizo we-PV, ukuvimbela ukugeleza kwamandla okubuyela emuva ngaphandle kokuvala ukukhiqiza ngokungadingekile.

Okubalulekile, i-PC321 ayizilawuli ngokwayo—iyazilawulakwenza ukulawula ngokunikeza isilinganiso esithembekile, okuyisisekelo sanoma yiliphi isu elisebenzayo lokunciphisa amandla aguqukayo.

Ukukhetha Isu Elifanele Lokulwa Nokuhlanekezela

Ukukhetha ikhambi elifanele lokulwa nokuhlehla kuncike ezintweni eziningana:

• Imithethonqubo yegridi yendawo kanye nemithetho yokuthumela ngaphandle

• Ukwehluka kwemithwalo kanye namaphethini okusetshenziswa ekhaya

• Ukuba khona kwesitoreji samandla noma ukushaja kwe-EV

• Isivinini sokuphendula esidingekayo kanye nobunzima besistimu

Ezimweni ezilula zokuthobela imithetho, ukuthunyelwa kwe-inverter okusekelwe ku-zero kungase kwanele.
Ngezinhlelo zesimanje ze-PV zokuhlala ezinemithwalo enamandla,Ukulawulwa kwamandla ashukumisayo okusekelwe kumitha kunikeza ukusebenza okungcono kakhulu kanye nokusetshenziswa kwamandla.

Isiphetho: Ukugeleza Kwamandla Okulwa Nokubuyela Emuva Kuyisu Lokulawula, Akuyona Ukuvala

Ukugeleza kwamandla okuphikisana nokubuyela emuva akusho ukuthi kukhubaza ukukhiqizwa kwelanga. Kunalokho, kumelelaifilosofi yokulawula—ukulinganisela umkhiqizo we-PV nokusetshenziswa kwesikhathi sangempela kanye nemikhawulo yegridi.

Ukuqonda umehluko phakathiakukho ukuthunyelwa ngaphandlefuthiukukhawulela amandla ashukumisayokusiza abaklami bezinhlelo ukuthi bagweme ukufakwa okungasebenzi kahle futhi bakhethe izakhiwo eziletha kokubili ukuthobela imithetho kanye nokusebenza kahle.

Njengoba izinhlelo ze-PV ziba ezihlakaniphile futhi ezixhumene kakhudlwana,Ukulinganisa ngesikhathi sangempela esibonakalayo segridi—okunikwe amandla yi-smart energy metres—sekuyisidingo esiyisisekeloyokulawula ukugeleza kwamandla okuphambene nokubuyela emuva okuthuthukisiwe.