Indlela iDynamic Anti-Reverse Power Flow esebenza ngayo kwiiNkqubo zeSolar zokuhlala: Isifundo seTyala loYilo lweNkqubo

Intshayelelo: Ukusuka kwiThiyori ukuya kwiLizwe lokwenyani uLawulo lokuHamba koMbane oluchasene nokuBuya kweNdlela

Emva kokuqonda imigaqo esemvaakukho kuthunyelwa ngaphandlekwayeukunciphisa amandla aguqukayo, abaninzi abayili beenkqubo basajongene nombuzo osebenzayo:

Inkqubo yokuhamba kombane echasene nokubuyela umva isebenza njani ngokwenene kufakelo lwelanga lwangempela lwendlu?

Enyanisweni, ukuhamba kwamandla okuthintela umva akufezekiswa sisixhobo esinye.uyilo lwenkqubo oluhambelanayokubandakanya ukulinganisa, unxibelelwano, kunye nengqiqo yokulawula. Ngaphandle koyilo lwenkqubo olucacileyo, nee-inverters ezicwangcisiweyo kakuhle zinokungaphumeleli ukuthintela ukuthunyelwa kwegridi okungafunekiyo phantsi kweemeko zomthwalo oguqukayo.

Eli nqaku libonisaisifundo semeko yelanga esiqhelekileyo sendawo yokuhlala, echaza indlela ulawulo lokuhamba kwamandla oluchasene nokubuyela umva olusebenza ngayo kwinqanaba lenkqubo kunye nesizathu sokubaUkulinganisa amandla ngexesha langempela kwindawo yoqhagamshelo lwegridi kubalulekile.

Imeko eqhelekileyo ye-PV yokuhlala efuna ulawulo oluchasene nokubuyela umva

Cinga ngekhaya lentsapho enye elixhotyiswe ngezi zinto zilandelayo:

• Inkqubo ye-PV yelanga eluphahleni

• I-inverter eqhagamshelwe kwigridi

• Imithwalo yendlu enokuguquguquka rhoqo

• Imithetho yeenkonzo ezisetyenziswayo ethintela ukuthunyelwa kwamandla ngaphandle

Kwiimeko ezinjalo, ukusetyenziswa kwendlu kunokwehla ngequbuliso—umzekelo, xa izixhobo zicinywa—ngelixa ukuveliswa kwe-PV kuhlala kuphezulu. Ngaphandle kolawulo olutshintshayo, amandla agqithisileyo aya kubuyela kwigridi kwimizuzwana embalwa.

Ukuthintela oku kufunaimpendulo eqhubekayo kunye nempendulo ekhawulezayo, hayi uqwalaselo olungaguqukiyo.

Isishwankathelo soYilo lweNkqubo: Izinto eziphambili

Inkqubo yokuhamba kwamandla enamandla echasene nokubuyela umva idla ngokuba neeleya ezine ezisebenzayo:

1. Umaleko woMlinganiselo weGridi

2. Umgangatho woNxibelelwano

3. Ulalo lweLogic loLawulo

4. Umaleko woLungiso lwaMandla

Umaleko ngamnye udlala indima ethile ekugcineni ukuthotyelwa komthetho kunye nozinzo lwenkqubo.

Umaleko 1: Umlinganiselo wamandla eGridi weXesha langempela

Kwisiseko sale nkqubo kukhoukulinganisa ngexesha langempela kwindawo yokudibanisa okuqhelekileyo (i-PCC).

Imitha yamandla ekrelekrele efakwe kuqhagamshelo lwegridi isoloko ilinganisa:

• Amandla angeniswe ngaphakathi

• Amandla athunyelwe kwamanye amazwe

• Isikhokelo sokuhamba kwamandla e-Net

Olu vavanyo kufuneka lube:

• Ichanekile

• Iqhubekeka

• Ikhawuleza ngokwaneleyo ukubonisa utshintsho lomthwalo

Ngaphandle kwale datha, inkqubo ayinakukwazi ukumisela ukuba ngaba ukuhamba kwamandla okubuyela umva kuyenzeka na.

Umaleko 2: Unxibelelwano Phakathi kweMitha kunye neNkqubo yoLawulo

Idatha yokulinganisa kufuneka idluliselwe kwinkqubo yolawulo nge-latency encinci.

Iindlela zonxibelelwano eziqhelekileyo ziquka:

• I-WiFikwiinethiwekhi zokuhlala

• I-MQTTukuhlanganiswa neenkqubo zolawulo lwamandla

• Inyosi yeZigbeekwizakhiwo ezisekwe kwisango lendawo

Unxibelelwano oluzinzileyo luqinisekisa ukuba impendulo yamandla ifikelela kwingqiqo yolawulo ngexesha langempela.

Umaleko 3: Ingqiqo yoLawulo kunye nokwenza izigqibo

Inkqubo yolawulo—esetyenziswa kumlawuli we-inverter okanye kwinkqubo yolawulo lwamandla—ihlala ivavanya impendulo yamandla egridi.

Ingqiqo eqhelekileyo ibandakanya:

• Ukuba uthumela ngaphandle > 0 W → nciphisa imveliso ye-PV

• Ukuba ukungenisa > umda → vumela ukunyuka kwe-PV

• Faka i-smoothing ukuze uphephe ukushukuma

Le ngqiqo iqhubeka ngokuqhubekayo, yenzainkqubo yolawulo oluvaliweyo.

Umaleko 4: Uhlengahlengiso lwe-PV Output

Ngokusekelwe kwizigqibo zolawulo, i-inverter ilungisa ngokuguquguqukayo imveliso ye-PV:

• Ukunciphisa ukuveliswa ngexesha lomthwalo ophantsi

• Ukwanda kwemveliso xa imfuno yekhaya inyuka

• Ukugcina ukuhamba kwamandla egridi kusondele okanye ku-zero

Ngokungafaniyo nezicwangciso ze-static zero-export, le ndlela ivumela inkqubo ukuba iphendule kwiimeko zehlabathi lokwenyani.

Apho iSmart Energy Meter ifaneleka khona: Indima yePC321

Kolu lwakhiwo lwezakhiwo,PC321imitha yamandla ekrelekreleisebenza njengei-ankile yokulinganisa yenkqubo yonke.

I-PC321 ibonelela:

• Ukulinganiswa kwexesha langempela kokungeniswa kunye nokuthunyelwa kwegridi

• Uhlaziyo lwedatha olukhawulezayo olufanelekileyo kwii-loops zolawulo olutshintshatshintshayo

• Unxibelelwano ngeI-WiFi, i-MQTT, okanye i-Zigbee

• Ixesha lokuphendula elikwaziyo ukuxhasauhlengahlengiso lwamandla olungaphantsi kwemizuzwana emi-2

Ngokubonelela ngempendulo echanekileyo yamandla egridi, i-PC321 ivumela inkqubo yolawulo ukuba ilawule ngokuchanekileyo imveliso ye-PV—ithintele ukuhamba kwamandla okubuyela umva ngaphandle kokunciphisa ngokungeyomfuneko ukuveliswa kwelanga.

Okubalulekileyo kukuba, i-PC321 ayizilawuli ngokwayo i-inverter. Endaweni yoko, iyazilawula.yenza ulawulo oluthembekileyo ngokubonelela ngedatha yokulinganisa exhomekeke kuzo zonke izigqibo ezikumgangatho ophezulu.

Kutheni ukuthunyelwa kwe-Static Zero Export kudla ngokungaphumeleli kwizindlu zangempela

Kwiindawo zokuhlala zokwenyani, utshintsho lomthwalo alunakuqikelelwa:

• Izixhobo ziyavulwa ziphinde zicinywe

• Iitshaja ze-EV ziqala ngequbuliso

• Iimpompo zobushushu kunye neenkqubo ze-HVAC

Useto lwe-zero-export olusekelwe kwi-inverter engaguqukiyo alukwazi ukuphendula ngokukhawuleza kwezi ziganeko. Isiphumo sesi:

• Ukuthunyelwa kwegridi yexeshana

• Ukunciphisa i-PV ngokugqithisileyo

Ulawulo olusebenzisa imitha olutshintshatshintshayo lubonelela ngesisombululo esizinzileyo nesisebenzayo ngakumbi.

Izinto Eziqwalaselwayo Ngokusetyenziswa Kweenkqubo Zokulwa Nokujika Kwezindlu

Xa uyila inkqubo yokuhamba kwamandla echasene nokubuyela umva enamandla, cinga ngoku:

• Indawo yokufakelwa kwemitha kwi-PCC

• Ukuthembeka konxibelelwano phakathi kwezixhobo

• Ixesha lokuphendula kwiluphu yokulawula

• Ukuhambelana namaqonga e-inverter okanye e-EMS

Uyilo oluyilwe kakuhle luqinisekisa ukuthotyelwa komthetho ngaphandle kokunciphisa ukusetyenziswa kwamandla.

Isiphelo: Uyilo lwezakhiwo lubaluleke ngaphezu kwezixhobo zomntu ngamnye

Ulawulo lokuhamba kwamandla oluchasene nokubuyela umvaayifezekiswa ngokucima ukuveliswa kwamandla elanga. Yisiphumo seuyilo lwenkqubo olulungelelaniswe kakuhleapho ukulinganisa, unxibelelwano, kunye nolawulo zisebenza kunye ngexesha langempela.

Njengoko iinkqubo ze-PV zokuhlala zisiya zitshintshatshintsha,Iimitha zamandla ezikrelekrele kwi-interface yegridi ziye zaba yinxalenye esisisekoamaqhinga okulwa nokuhamba kwamandla okujikajika angasemva.

Kwiiprojekthi zelanga zokuhlala ezifuna ulawulo oluchanekileyo lokuthumela ngaphandle, ukuqonda uyilo lwenkqubo linyathelo lokuqala lokusasazwa okuzinzileyo nokuthobela imithetho.