Ukutyala imali kwiitshaja zeWallbox DC Home: Ukusebenza kakuhle kweSiC, Ukuqina kweV2H, kunye nokuzinza

Utshintsho Olupheleleyo Lobuchwephesha Lokuhamba Kwezindlu: Kutheni Ukutyala Imali Kwi-Wallbox DC Home Chargers Kudlula Izithintelo Ze-OBC, Kuvumela Ukuqina Kwe-V2H/V2G, Kwaye Kuphucule Ukusebenza Kakuhle Kwamandla NgeTekhnoloji ye-SiC Ukuze Uphile Ubomi Obuzinzileyo Obunobungqina Bexesha Elizayo

Isishwankathelo

Utshintsho lwehlabathi oluya ekuhambeni kombane lungena kwisigaba sesibini nesintsonkothileyo. Ngelixa ishumi leminyaka lokuqala ligxile ekusetyenzisweni kwezithuthi kunye neziseko zophuhliso zikawonke-wonke, ishumi leminyaka langoku lichazwa kukwenziwa ngcono kwenkqubo yokutshaja yokuhlala. Eyona nto iphambili kule nguqu yiWallbox DC Home Charger. Ngokwesiko, ukutshaja kweendawo zokuhlala kube yindawo yezikhululo ze-Alternating Current (AC) Level 2, ezixhomekeke kwi-On-Board Charger yangaphakathi yesithuthi (OBC). Nangona kunjalo, imida yobuchwephesha ye-OBC—elawulwa bubunzima, umthamo, kunye neendleko—idale ingxaki kwisizukulwana esilandelayo sezindlu ezizimeleyo ngamandla.

Eli nqaku libonelela ngobunzulu obupheleleyo obunamagama angama-6,000 malunga nobugcisa, i-electrochemical, kunye nobukhulu be-DC wallboxes. Sihlola indlela ezi zixhobo ezidlula ngayo i-OBC ukuze zinikezele ngokutshaja okukhawulezayo nangokusebenzayo; indlela ezisebenzisa ngayo ii-semiconductors zeSilicon Carbide (SiC) ukunciphisa ilahleko yobushushu; kunye nesizathu sokuba zisisiseko esibalulekileyo sezicelo zeVehicle-to-Home (V2H) kunye neVehicle-to-Grid (V2G). Ngaphezu koko, sihlalutya ukudityaniswa kweetshaja zeDC kwiiNkqubo zoLawulo lwaMandla eKhaya (HEMS), indima yazo ekuphawuleni izindlu zodidi oluphezulu, kunye nendlela yexesha elide yokuqhuba iindleko-inzuzo njengezikali zemveliso.

Isahluko 1: Utshintsho lweParadigm ekuTshajweni kwe-EV yasekhaya – Ukusuka kwi-AC Utility ukuya kwi-DC Intelligence

Imbali yokutshaja kwezithuthi zombane (EV) ibiyeyona nto ibangela ukungabikho kwesivumelwano. Kwimihla yokuqala yexesha lanamhlanje le-EV, injongo ephambili yayikukuqinisekisa ukuba imoto inokuzaliswa kwakhona ngobusuku obunye kusetyenziswa iziseko zombane ezikhoyo zokuhlala. Oku kwakhokelela ekubeni kubekho ukutshaja kwe-AC. Kwisetingi ye-AC, ibhokisi yodonga ngokuyintloko sisitshixo sokhuseleko esizukileyo (i-EVSE - Izixhobo Zokubonelela Ngezithuthi Zombane) esidlulisela amandla e-AC aluncedo ngqo emotweni. Ukuphakamisa okunzima—ukuguqula loo mandla e-AC abe ngamandla e-DC afunekayo kwibhetri—kwenziwa yiTshaja ye-On-Board (OBC) yesithuthi.

Nangona ukutshaja i-AC kubiza kancinci ukuyifaka, kunqongophele kakhulu. Njengoko amandla ebhetri ekhula ukusuka kwi-60kWh ukuya kwi-100kWh nangaphezulu, ixesha elifunekayo ukutshaja kwi-7kW okanye i-11kW AC liba ngumqobo wezothutho kumakhaya asebenzisa kakhulu. Okubaluleke ngakumbi, indlela ye-AC iphatha i-EV njengomthwalo ongasebenziyo—“isinki” samandla.

Ngena kwiWallbox DC Home Charger. Ngokususa inkqubo yokuguqula i-AC ukuya kwi-DC emotweni size siye kwiyunithi ebekelwe udonga, sivula indlela entsha yokusebenza. Olu tshintsho lubonisa utshintsho oluvela kwi-"AC Utility" ukuya kwi-"DC Intelligence." I-DC wallbox ayisiyotshaja nje kuphela; yindawo ye-electronics yamandla ephucukileyo. Inxibelelana ngokuthe ngqo neNkqubo yoLawulo lweBhetri (i-BMS), inika ulawulo oluchanekileyo lwe-voltage kunye nombane oludlula imida yangaphakathi yesithuthi.

Esi sahluko sihlola iindlela ezinkulu eziqhuba olu tshintsho:

1. Ukusukela Isantya:Ii-EV eziphezulu ngoku zixhasa uyilo lwe-800V. Iitshaja ze-AC azinakusebenzisa ezi santya ekhaya. Iibhokisi zodonga ze-DC, nokuba zikwinqanaba eliphantsi lamandla okuhlala (umz., i-20kW ukuya kwi-30kW), zibonelela ngophuculo olukhulu kuneeyunithi ze-AC ze-7kW eziqhelekileyo.
2. Amandla Olawulo:Ukwanda kwendawo yokugcina amandla elanga kunye neebhetri kudala "i-DC ecosystem." Ukuguqula amandla elanga e-DC abe yi-AC yendlu, uze ubuyele kwi-DC yemoto, kubandakanya ilahleko ezininzi zokuguqulwa. Indawo yasekhaya edibene ne-DC, enebhokisi yodonga ye-DC embindini wayo, iyayinciphisa le "rhafu yokuguqulwa."
3. Igridi ekrelekrele:Njengoko iinkonzo zisiya kwiinkqubo zokubeka amaxabiso ngexesha lokusetyenziswa kunye neenkqubo zokuphendula imfuno, ulawulo oluyi-granular olunikezelwa ziinkqubo ze-DC luvumela abanini bezindlu ukuba bathathe inxaxheba ekuzinzisweni kwegridi ngempumelelo ngakumbi kuneendlela zesiqhelo zokuseta ii-AC.

Isahluko 2: Ukwahlukana koBugcisa – Ukungayilandeli iBottleneck yeTshaja eseBhotweni (i-OBC)

Ukuze uqonde ukuba kutheni ukutshaja kwekhaya le-DC kuyinto entsha, umntu kufuneka aqale aqonde i-“OBC Bottleneck.” Yonke i-EV etshajiweyo ye-AC inetshaja ekwibhodi. Eli candelo liyi-inverter yamandla ethatha i-120V okanye i-240V AC kwaye iyilungise kwi-DC voltage yebhetri.

Nangona kunjalo, i-OBC lixhoba lefiziksi yeemoto. Ngenxa yokuba kufuneka ihambe nesithuthi, iphantsi kwemiqathango engqongqo:

• Ubunzima kunye nomthamo:Ikhilogram nganye ye-OBC yikhilogram yobunzima enciphisa ububanzi besithuthi. Ngenxa yoko, uninzi lwabavelisi luyivala i-OBC kwi-7kW okanye i-11kW ukuze kongiwe indawo nobunzima.
• Ulawulo lobushushu:Ukuguqula amandla angama-11kW kuvelisa ubushushu obukhulu. I-loop yokupholisa yesithuthi kufuneka isuse obu bushushu, obusebenzisa amandla ongezelelweyo.
• Ixabiso:Ii-OBC ezinamandla aphezulu (umz., i-22kW) zibiza kakhulu ukuzenza kwaye zihlala zisetyenziselwa iimodeli zodidi oluphezulu okanye ukuphuculwa okukhethwayo.

Xa usebenzisa iWallbox DC Home Charger, i-OBC ayifakwanga ngokupheleleyo. I-DC wallbox iqhagamshela ngqo kwibhetri yesithuthi ngee-DC pins zesixhumi seCCS okanye seNACS. Oku kunemiphumo emininzi ebalulekileyo:

2.1 Uxinano lwamandla aphezulu ngaphandle kobunzima besithuthi

Ngokubeka izixhobo zokuguqula umbane eludongeni lwegaraji, iinjineli azisekho phantsi kwemida yobunzima besithuthi. Singasebenzisa ii-inductors ezinkulu, ii-capacitors eziqinileyo, kunye neenkqubo zokupholisa eziphezulu. Oku kuvumela isantya sokutshaja sendawo yokuhlala esiyi-15kW, 20kW, okanye kwane-25kW—isantya ebesingenakukwazi ukusebenza ngokwasemzimbeni nangokwezoqoqosho ukusidibanisa nesithuthi ngokwaso.

2.2 Iinzuzo Zokusebenza Kakuhle

Ukusebenza kakuhle kwe-OBC kudla ngokuba malunga ne-85% ukuya kwi-92%. Ukulahleka "kokubuyela nokubuya" kubalulekile xa ucinga ngamawaka emijikelo yokutshaja kwiminyaka elishumi edlulileyo. Iibhokisi zodonga ze-DC, ezisebenzisa izixhobo zomgangatho wezoshishino kunye nokupholisa okukhethekileyo, zinokufikelela ekusebenzeni okungaphezulu kwe-96%. Ngokudlula i-rectifier yangaphakathi yemoto, amandla aya ngqo kwigridi (okanye i-solar) aye kwindawo yokugcina iikhemikhali zebhetri enenkunkuma encinci.

2.3 Ukuthembeka kunye nokuSebenza kakuhle

Ukuba i-OBC iyasilela, imoto iyasilela kwaye ifuna ukulungiswa okubiza kakhulu nokuntsonkothileyo kwindawo yokuthengisa. Ukuba i-DC wallbox iyasilela, imoto isenokutshajwa kwisikhululo sikawonke-wonke okanye ngetshaja ephathwayo ye-AC, kwaye i-wallbox ngokwayo inokulungiswa okanye itshintshwe ngumbane ngaphandle kokuchukumisa izinto zangaphakathi zesithuthi ezine-voltage ephezulu.

Isahluko 3: Iingenelo ze-Electrochemical - Ukuphucula ubude bebhetri kunye nokusebenza kakuhle

Ingcamango ephosakeleyo eqhelekileyo kukuba “ukutshaja kwe-DC akulunganga kwiibhetri.” Nangona ukutshaja kwe-DC kawonkewonke okukhawulezayo kakhulu (350kW+) kunokubangela uxinzelelo lobushushu,Ukutshaja kwe-DC yokuhlala(kwi-10kW ukuya kwi-25kW) ngokwenene yi-"sweet spot" ye-electrochemical enika iingenelo ezininzi ngaphezu kokutshaja kwe-AC.

3.1 Ukuguqulwa kobubanzi bePulse (PWM) kunye noLawulo lweRipple

Inkqubo yokuguqula i-AC ukuya kwi-DC kwi-OBC yesithuthi idla ngokuvelisa "umbane ojikelezayo" - utshintsho oluncinci kwimveliso ye-DC enokubangela ubushushu obuncinci ngaphakathi kweeseli zebhetri. Iibhokisi zodonga ze-DC eziphezulu zisebenzisa iiprosesa zesignali zedijithali eziphambili (ii-DSP) ukubonelela ngesignali ye-DC "ecocekileyo" kakhulu. Olu zinzo lunciphisa ilahleko yokumelana kwangaphakathi ngaphakathi kweeseli ze-Li-ion ngexesha lenkqubo yokutshaja.

3.2 Iikhribhu zokutshaja eziDynamic

Xa itshaja nge-AC, i-BMS yemoto kufuneka icele umbane kwi-OBC, ethi emva koko itsale eludongeni. Olu nxibelelwano lunezinyathelo ezininzi lunokuba ne-latency. Ibhokisi yodonga ye-DC inxibelelana ngokwendalo ne-BMS ngeprotocol ye-ISO 15118. Oku kuvumela i-curve yokutshaja enamandla ngakumbi nephendulayo. Ukuba i-BMS ibona ukunyuka okuncinci kobushushu kwimodyuli ethile yeseli, ibhokisi yodonga ye-DC inokulungisa ngoko nangoko ukuhamba kwamandla ombane, ngokuchanekileyo ngakumbi kunokuba i-OBC inokwenza.

3.3 Ukunciphisa "Ubushushu Bokuguqula"

Ngexesha lokutshaja kwe-AC, ubushushu obuveliswa yi-OBC budla ngokudluliselwa kwibhetri kuba babelana ngesekethe efanayo yokupholisa kwaye bakufutshane. Lo mthwalo wobushushu wesibini unokukhawulezisa ukuwohloka kwe-electrolyte. Ngokuhambisa inkqubo yokuguqula ubushushu kwibhokisi yodonga, ibhetri yesithuthi ihlala ipholile ngexesha leseshoni, igcina impilo yomaleko we-SEI (Solid Electrolyte Interphase) kwi-anode.

Ngamafutshane, ukutshaja kwe-DC yokuhlala kunika isantya setshaja ekhawulezayo "ngobunono" betshaja ecothayo, konke oku kugcina uzinzo oluphezulu lwe-electrochemical kubomi bebhetri.

Isahluko 4: Itekhnoloji yeSilicon Carbide (SiC) – Intliziyo yoGuqulo oluSebenza kakuhle kakhulu

Isithako esiyimfihlo esenza ii-wallbox zeDC zanamhlanje zibe nokwenzeka ekhaya kukutshintsha ukusuka kwii-MOSFET ze-Silicon (Si) zemveli kunye nee-IGBT ukuya kwii-semiconductors ze-Silicon Carbide (SiC). I-SiC yinto ebanzi (WBG) etshintshe kakhulu imeko ye-elektroniki yamandla.

4.1 Iipropati zeBandgap eziPhakamileyo

I-bandgap yeSilicon Carbide ibanzi ngokuphindwe kathathu kuneyesilicon eqhelekileyo. Oku kuvumela izixhobo zeSiC ukuba zisebenze kwiivolthi eziphezulu kakhulu kunye namaqondo obushushu. Kwibhokisi yodonga yeDC, oku kuthetha ukuba iyunithi inokusingatha iimfuno ze-400V okanye ze-800V zeebhetri ze-EV zanamhlanje ezinenxalenye encinci yecandelo.

4.2 Ukunciphisa Ukulahlekelwa Kokutshintsha

Eyona nzuzo ibalulekileyo yeSiC kwitshaja yasekhaya kukunciphisa ilahleko zokutshintsha. Iiswitshi zesilicon zemveli zilahlekelwa ngamandla ngalo lonke ixesha zivula kwaye zicima, ngokuyintloko ngenxa yexesha lazo lokuphendula elicothayo kunye nomthamo ophezulu. Iiswitshi zeSiC zinokusebenza kwiifrikhwensi eziphezulu kakhulu (ngokuqhelekileyo ziphindwe kalishumi kunesilicon). Olu tshintsho lwefrikhwensi ephezulu luvumela oku kulandelayo:

• Iimagnethi ezincinci:Ngenxa yokuba i-switching frequency iphezulu, ii-inductors kunye nee-transformers ezingaphakathi kwi-wallbox zinokuba ncinci kakhulu kwaye zikhaphukhaphu. Oku kuvumela itshaja ye-20kW DC ukuba ibe ncinci ngokwaneleyo ukuba ixhonywe eludongeni lwegaraji kunokuba ibe yikhabhathi enobukhulu befriji.
• Ukusebenza kakuhle okuphezulu:I-SiC inciphisa ukulahleka kwamandla ukuya kuthi ga kwi-80% xa kuthelekiswa nokuguqulwa kwe-silicon. Kumninimzi, oku kuthetha ukunciphisa iindleko zombane kunye nokunciphisa ubushushu obuchithwayo.

4.3 Ulawulo lobushushu kunye nokuthembeka

Ngenxa yokuba iSiC isebenza kakuhle, ivelisa ubushushu obuncinci. Ubushushu obuncinci buthetha ukuba ibhokisi yodonga isenokungafuni iifeni zokupholisa ezingxolayo nezigcina ubushushu buphezulu. Iibhokisi zodonga ezininzi zeDC ezisekwe kwiSiC zinokusebenzisa ukupholisa ulwelo olungasebenziyo okanye uyilo oluphambili lwe-heat-sink. Oku kwandisa ubomi bezinto ze-elektroniki, njengoko ukujikeleza kobushushu kuyimbangela yokuqala yokusilela kwezixhobo kwiinkqubo zamandla.

4.4 Uhlalutyo lokuthelekisa: i-Si vs. i-SiC kwizicelo zokuhlala

Ukuze umntu ayiqonde ngokwenene iSiC, kufuneka ajonge uphuculo lobungakanani. Kwi-converter eqhelekileyo ye-20kW:

• Ukunciphisa Unyawo:Inkqubo esekelwe kwi-silicon ingafuna indawo ebiyelweyo ye-15-litre ukuze ifake iifeni zokupholisa kunye nee-inductors ezinkulu. Inkqubo esekelwe kwi-SiC ingangena kwindawo ebiyelweyo ye-4-litre, ukwehla kwe-73% kumthamo.
• Ukutshintsha Ubuninzi:IiSilicon IGBTs zihlala zilinganiselwe kwi-20kHz ukuya kwi-30kHz ngenxa yemida yobushushu. IiSiC MOSFETs zisebenza kakuhle kwi-100kHz ukuya kwi-300kHz. Oku akusiyo nje i-technical vanity metric; ihambelana ngokuthe ngqo nobunzima bee-copper windings kwi-transformers, ezibangela inxalenye ebalulekileyo ye-bill of materials (BOM).
• Ukusebenza kakuhle kwi-Partial Load:Uninzi lweetshaja zasekhaya zisebenza ngomthwalo ongaphelelanga (umz., i-5kW endaweni ye-20kW) ubomi bazo bonke. I-SiC igcina ukusebenza kakuhle (94%+) nokuba ikwi-20% yomthwalo, ngelixa ukusebenza kakuhle kwe-silicon kudla ngokuhla ngokukhawuleza ukuya kwi-80s ephantsi okanye kwi-70s ephezulu kumanqanaba aphantsi ombane.

4.5 Impembelelo yokujikeleza kobushushu kwiXesha lobomi

Iitshaja zokuhlala ziphantsi kweemeko ezinzima—iigaraji ezibandayo ebusika kunye nezo zishushu ehlotyeni. Ii-semiconductors zeSilicon zinovelwano kakhulu kutshintsho “lobushushu bokudibana”. Ngalo lonke ixesha itshaja yeSilicon iqala, izinto zangaphakathi ziyanda kwaye ziyancipha. Kwimijikelo emininzi, oku kukhokelela ekudinweni kwe-solder kunye nokungaphumeleli kwe-wire-bond. I-bandgap ebanzi yeSiC kunye nokuqhuba okuphezulu kobushushu kuthetha ukuba ubushushu bangaphakathi buhlala buzinzile ngakumbi, okwandisa kakhulu i-MTBF (Mean Time Between Failures) yesixhobo ukusuka kwiminyaka emi-5 ukuya kwiminyaka eli-12.

Isahluko 5: Iitshaja zeWallbox DC njengeSango eliya kwiV2H (Isithuthi esiya ekhaya) kunye neV2G (Isithuthi esiya kwiGrid)

Mhlawumbi esona sizathu sibalulekileyo sokutyala imali kwi-wallbox ye-DC yindima yayo njengokwenza ukuhamba kwamandla kube ngakwelinye icala. Nangona kukho ezinye iinkqubo ze-AC ezibhekisa kwelinye icala, zithintelwe ngokwemvelo yi-hardware yangaphakathi yesithuthi. Ukutshaja okudibene ne-DC okukhokelela kwelinye icala yeyona ndlela ilungileyo yokumelana namandla.

5.1 Isithuthi njengeBhetri yokuhlala (V2H)

Ibhetri ye-EV yanamhlanje idla ngokuba namandla aphakathi kwama-60kWh kunye nama-100kWh. Oku kwanele ukunika amandla usapho oluqhelekileyo iintsuku ezintathu ukuya kwezintlanu. Nangona kunjalo, ukuze usebenzise la mandla ukunika amandla ikhaya lakho ngexesha lokucima kombane, udinga indlela yokukhupha umbane we-DC kwibhetri kwaye uyiguqulele kwi-AC kwiisekethe zekhaya lakho. Ibhokisi yodonga ye-DC isebenza njengesango. Ngenxa yokuba idlula i-OBC, inokutsala umbane ngqo kwiphakheji yebhetri, iwuguqulele kwi-240V AC, kwaye iwufake kwiphaneli yombane yekhaya (ngeswitshi yokudlulisa). Oku kuguqula i-EV ibe yi-"Powerwall" enkulu, ehambayo, enika amandla angaphezu kwebhetri yasekhaya esisigxina ngexabiso eliphantsi.

5.2 Uzinzo lweGrid kunye neNgeniso (V2G)

I-Vehicle-to-Grid (V2G) ithatha eli nyathelo libheke phambili. Kwimeko ye-V2G, i-DC wallbox inxibelelana nomboneleli weenkonzo. Ngexesha lemfuno ephezulu, i-grid "inokuboleka" amandla amancinci kumawaka ee-EV ezipakishiweyo. Umninimzi uhlala ehlawulwa ngale nkonzo, nto leyo enciphisa iindleko zakhe zobunini. Ii-DC wallboxes zingcono kune-V2G kuba zibonelela ngamaxesha okuphendula ngokukhawuleza kunye namandla aphezulu. Ukuba i-grid ifuna ukufakwa ngequbuliso kwe-20kW ukuthintela ukudamba kombala, i-DC wallbox inokuyibonelela ngoko nangoko, ngelixa i-AC OBC eqhelekileyo inokulinganiselwa kwi-7kW kwaye isenokungaxhasi nokuhamba kwe-bi-directional.

5.3 Izityalo zamandla eziSebenzayo (i-VPP)

Iitshaja zeDC zivumela abanini bezindlu ukuba bajoyine iiVenkile zoMbane eziSebenzayo. Ngokuhlanganisa amakhulu ezindlu eziqhagamshelwe yiDC, umphathi we-VPP unokubonelela ngomthamo omkhulu kwimarike yamandla athengiswayo. Oku kudala "uqoqosho lwamandla" olutsha kwicandelo leendawo zokuhlala, apho i-EV iyimpahla esebenzayo endaweni yeendleko ezingasebenziyo.

5.4 Icebo Lokugcina "Imeko Yokuhlawuliswa" (SoC)

Enye yeempawu ezintsonkothileyo zeenkqubo zeDC V2G kukukwazi ukulawula impilo yebhetri ngelixa ixhasa igridi. Ngokungafaniyo neenkqubo ezisekelwe kwi-AC ezinoku "gquma" ibhetri ngemijikelo enganzulu nengasebenzi kakuhle, ibhokisi yodonga yeDC inokwenza "ukukhupha ngokuchanekileyo." Ingakhupha ngqo ubungakanani bamandla aceliweyo yigridi ngelixa iqinisekisa ukuba ibhetri ayiweli ngaphantsi komda ochazwe ngumsebenzisi (umz., i-20% SoC), kwaye ikwenza oko ngesantya esifanelekileyo sokukhupha esinciphisa ukufudumeza okuxhathisayo kwangaphakathi.

Isahluko 6: Ukuhlanganiswa Okunzulu Neenkqubo Zolawulo Lwamandla Ekhaya (i-HEMS) kunye Nezinto Ezihlaziyiweyo

Itshaja yeWallbox DC ayisosixhobo esizimeleyo; yindawo ebalulekileyo kwi "Smart Home of 2030." Xa idityaniswe neNkqubo yoLawulo lwaMandla eKhaya (HEMS), i-wallbox yeDC iba ngumququzeleli oyintloko wokulinganisela amandla endlu.

6.1 Ingcamango "yebhasi ye-DC"

Izindlu ezingakhuselekanga kwixesha elizayo ziya kwindlela yokwakha i-DC-primary. Iiphaneli zelanga zenza i-DC. Iibhetri zasekhaya zigcina i-DC. Ii-EV zisebenzisa i-DC. Kwikhaya le-AC yesiqhelo, amandla aguqulwa abuyele umva (DC -> AC -> DC -> AC), kunye nokulahleka kwe-3-5% kwinqanaba ngalinye. Ibhokisi yodonga ye-DC ivumela ukudibana ngqo. Amandla e-DC aveliswa yilanga anokudluliselwa ngqo kwibhetri ye-EV ngaphandle kokudlula kwi-AC inverter. Oku kuchaja kwelanga "Direct-to-EV" yeyona nto iphambili ekusebenzeni kakuhle, ukuqinisekisa ukuba yonke i-photon ebanjwe luphahla isetyenziselwa ukuhambahamba.

6.2 Ukulinganisela Umthwalo Okrelekrele

Isoftware ye-HEMS ingasebenzisa i-DC wallbox ukulinganisela umthwalo wonke wendlu. Umzekelo, ukuba inkqubo ye-HVAC iyasebenza kwaye isoyikisa ukudlula umda wemfuno ephezulu yendlu, i-HEMS ingayitshintsha ngoko nangoko i-DC wallbox ukusuka kwi-20kW ukuya kwi-10kW. Ngenxa yokuba ukutshaja kwe-DC kulawulwa ngedijithali kwaye kuthintela ukulibaziseka kwangaphakathi kwesithuthi, olu hlengahlengiso lwenzeka kwi-milliseconds, ukuqinisekisa ukuba i-breaker ephambili yendlu ayikhubeki.

6.3 Uhlalutyo oluQikelelweyo kunye nokuziphatha koMsebenzisi

I-HEMS edibeneyo ingahlalutya uqikelelo lwemozulu, amaxabiso eenkonzo, kunye nekhalenda yomsebenzisi. Ukuba inkqubo iyazi ukuba unohambo olude ngomso kwaye ilanga liza kukhanya namhlanje, iya kubeka phambili ukutshaja kwelanga kwe-DC emva kwemini. Ukuba ibona amaxabiso aphezulu eenkonzo ngokuhlwa, iya kusebenzisa i-DC wallbox ukutsala amandla emotweni ukuze isebenze i-dishwasher kunye nezibane (V2H), ize itshaje imoto ngo-3:00 AM xa amaxabiso esezantsi.

6.4 Imiphumo yeFleet eDibeneyo kwiiYunithi zeentsapho ezininzi

Kwii-complexes zeeflethi okanye kwii-condominiums zodidi oluphezulu, ii-wallbox ze-DC zinokuthungelwa ukuze kwenziwe "i-micro-grid." Endaweni yokuba yonke iflethi ibe nonxibelelwano oluzinikeleyo lwegridi olungasebenziyo ngama-90%, ibhasi ye-DC ephakathi inokwabelana ngombane phakathi kweemoto. Ukuba imoto enye itshajiwe ngokupheleleyo, isabelo sayo somthamo we-DC sidluliselwa kwangoko kwimoto esandula ukufika. Olu "kwabelana ngomthamo oguqukayo" lunokwenzeka kuphela ngonxibelelwano olukhawulezayo kunye nolawulo olukwiinkqubo ze-DC.

Isahluko 7: Ubunjineli Bomzimba – Ufakelo, Ukwenziwa ngcono Kwesithuba, kunye noLawulo Lobushushu

Utshintsho lokutshaja kwe-DC enamandla aphezulu ukusuka kwiindawo zokugcina izimboni ukuya kwiindawo zokuhlala kwafuna ubuchule bobugcisa bobunjineli bezinto ezibonakalayo. Nangona itshaja ye-DC ekhawulezayo kawonkewonke idla ngokuba nkulu njengomatshini omkhulu wokuthengisa, ibhokisi yodonga ye-DC yokuhlala kufuneka ibe ncinci, ibukeke kakuhle, kwaye izole. Ukufezekisa oku kwafuna ubuchule kwiindawo ezininzi eziphambili.

7.1 I-Topology yoGuqulo lwaMandla: Isiguquli esiHlanganisiweyo

Ukuze kufezekiswe uxinano olukhulu lwamandla, ii-wallbox ze-DC zokuhlala zihlala zisebenzisa ii-LLC resonant converters okanye ii-Phase-Shifted Full Bridge (PSFB). Ezi sekethe zivumela "iSoft Switching," apho ii-semiconductors zivula kwaye zicima kwi-zero voltage (ZVS) okanye kwi-zero current (ZCS). Oku kunciphisa kakhulu i-EMI (Electromagnetic Interference)—ibaluleke kakhulu kwiindawo zasekhaya apho kukho i-Wi-Fi ebuthathaka kunye nezixhobo zasekhaya ezikrelekrele—kwaye kunciphisa ubungakanani bezihluzo zangaphakathi kunye nee-heat sinks.

7.2 Ulawulo lobushushu: Ngaphaya kwefeni

Kwindawo yokuhlala, ingxolo yeyona nto ixhalabisayo. Itshaja ye-20kW enefeni yemizi-mveliso enamandla ayamkelekanga kwigaraji enamathele kwigumbi lokulala. Iinjineli zisebenzise amaqhinga aliqela okulawula ubushushu buthule:

• Iimagnethi ezifakwe ngaphakathi:Izinto ezifana nee-inductors zifakwa kwiimbiza kwiiresini eziqhuba ubushushu ezitsala ubushushu ziye kwi-casing yangaphandle.
• Izitshintshi zobushushu ezivela kulwelo ukuya emoyeni:Ezinye iibhokisi zodonga zeDC eziphezulu zisebenzisa iluphu encinci, engathethiyo yolwelo (efana nePC yokudlala) ukuhambisa ubushushu ukusuka kwiimodyuli zeSiC ukuya kwitshasi yealuminiyam enkulu esebenza njengeradiator engasebenziyo.
• Izixhobo zoTshintsho lweSigaba (i-PCM):Iiyunithi eziphambili zisebenzisa ii-PCM ukufunxa ubushushu ngexesha lokuqhuma okufutshane, okunamandla aphezulu kwaye kukhulule kancinci ngokuhamba kwexesha, okuvumela amandla aphezulu ngaphandle kokupholisa okusebenzayo.

7.3 Uyilo loFakelo: Inkqubo "yoKwahlulahlula"

Ukuze boyise ubunzima bomzimba bezixhobo zokuguqula ezingama-20kW+ ngaphezulu, abanye abavelisi basiya kwisakhiwo esahlulweyo. Imodyuli yamandla anzima ifakwe kwikhabhathi eseluphahleni okanye eyombane, ngelixa "iyunithi yentloko" encinci, enobuhlobo nomyili (equlethe isikrini kunye nentambo) ifakwe kwigaraji. Oku kwenza kube lula ukufakela, njengoko umsebenzi wombane wenziwa kufutshane nephaneli ephambili, kwaye ziintambo ze-DC ezine-voltage ephezulu kuphela ekufuneka zithuthelwe kwindawo yokupaka.

7.4 Iimfuno zoQhagamshelo lweGridi

Ukufakela ibhokisi yodonga ye-DC kuyinkimbinkimbi ngakumbi kuneyunithi ye-AC eqhelekileyo. Ngokwesiqhelo ifuna uqhagamshelo oluzinikeleyo lwezigaba ezi-3 (eYurophu) okanye isekethe yesigaba sokwahlulahlula se-240V esinomlinganiselo ophezulu (eMntla Melika).

• Ukulinganisela Umthwalo kwiPhaneli:Iiyunithi ezininzi ngoku ziquka “ii-CT clamps” (iiCurrent Transformers) ezijonga ukusetyenziswa kwendlu iyonke. Ukuba umninimzi uvula i-sauna okanye i-oven yombane, ibhokisi yodonga ye-DC iyazityhala ngoko nangoko ukuthintela i-fuse ephambili ukuba ingavuthuzi.
• Iitransformer zokuZihlukanisa:Iitshaja zeDC kufuneka zibonelele ngokwahlukana kwe-galvanic phakathi kwegridi kunye nebhetri yesithuthi ukuze kukhuseleke. Iitransformer zanamhlanje ezisebenzisa i-high-frequency zithathe indawo yeetransformer ezinzima ze-50/60Hz, zinciphisa ubunzima ukusuka kwi-50kg ukuya ngaphantsi kwe-5kg.

7.5 Ubunjineli beCable kunye ne-Ergonomics

Iintambo zeDC zityebile kakhulu kwaye zinzima kuneentambo ze-AC kuba kufuneka zithwale umbane ophezulu kakhulu (ngokuqhelekileyo ukuya kuthi ga kwi-80A okanye kwi-100A). Oku kubangela umngeni we-ergonomic. Iinjineli ziye zaphuhlisa "iintambo ezipholileyo ngolwelo" (nokuba zenzelwe ukusetyenziswa ekhaya) ezisebenzisa umaleko omncinci wolwelo lokupholisa ukuvumela icandelo elincinci kakhulu lobhedu. Oku kwenza intambo ibe bhetyebhetye kwaye ilula njengentambo ye-AC eqhelekileyo, nto leyo ephucula kakhulu amava omsebenzisi kubantu abadala okanye abo banokuhamba okulinganiselweyo.

Isahluko 8: Uhlalutyo lwezoQoqosho – I-Cost-Benefit Curve kunye ne-Total Cost of Ownership (TCO)

Umqobo oyintloko wokwamkelwa kokutshaja kwendlu yiDC ibisoloko iyi-"Sticker Price." Ibhokisi yodonga ye-AC esemgangathweni ophezulu ixabisa i-$500–$1,000, ngelixa ibhokisi yodonga yeDC inokubiza i-$4,000–$10,000. Nangona kunjalo, ukugxila okuncinci kwixabiso lokuthenga akunaki iingenelo ezibalulekileyo zeTotal Cost of Ownership (TCO).

8.1 "Iindleko Ezingaphephekiyo" Zokugcina Izinto Ezingaguqukiyo

Ukuba umninimzi ucinga nge-EV kunye nebhetri yasekhaya (njenge-Tesla Powerwall), izibalo zoqoqosho ziyatshintsha. I-Powerwall ye-13.5kWh ixabisa malunga ne-$10,000. Ngokukhetha i-DC wallbox ebhekisa kwicala elinye, umninimzi angasebenzisa ibhetri ye-80kWh esele ikwi-EV yakhe. "Ixabiso nge-kWh" yokugcina nge-DC wallbox ngokusisiseko yi-zero (kuba sele uyithengile imoto), xa ithelekiswa ne-$700/kWh yokugcina i-stationary. Kwikhaya elifuna amandla okugcina umbane amaninzi, i-DC wallbox ngokwenene yiyoingabizi kakhuluindlela eya ekuzimeleni kwamandla.

8.2 Ukonga ngokuSebenza kakuhle kwamandla

Inzuzo yokusebenza kakuhle ye-5% ukuya kwi-8% yokutshaja kwe-DC ukuya kwi-DC (ukusuka kwi-solar ukuya kwi-EV) iyongeza. Ngaphezulu kweemayile ezili-100,000 zokuqhuba, i-EV iya kusebenzisa amandla angama-33,000 kWh. Inzuzo yokusebenza kakuhle ye-5% igcina i-1,650 kWh. Nge-$0.25/kWh, oko kuthetha ukonga ngokuthe ngqo kwe-$412. Kwiminyaka eli-15 yobomi betshaja, inzuzo yokusebenza kakuhle yodwa inokuhlawula ixabiso leprimiyamu kwiyunithi ye-AC engabizi.

8.3 Ukuveliswa kweNgeniso nge-V2G

Kwimimandla eneenkqubo ze-V2G ezisebenzayo, i-DC wallbox inokuvelisa ingeniso. ICalifornia kunye namazwe aliqela aseYurophu azama iinkqubo ezihlawula abasebenzisi i-$0.50 ukuya kwi-$1.00 nge-kWh ngenkxaso yegridi "engxamisekileyo". Ukuba umqhubi ubonelela ngenkxaso ye-10kWh amaxesha angama-50 ngonyaka, angafumana i-$500 ngonyaka. Idityaniswe nezikhuthazo zempendulo yemfuno, i-DC wallbox itshintsha ukusuka kwiziko leendleko ukuya kwi-asethi evelisa ingeniso.

8.4 Uhlalutyo loBuchule: Impembelelo yamaxabiso ombane

I-ROI yebhokisi yodonga ye-DC inovelwano kakhulu kulwahlulo phakathi kwamaxabiso ombane aphezulu nangaphandle komgangatho ophezulu. Kwiimarike ezinezinga le-“Time-of-Use” (ToU) apho ulwahlulo luyi-$0.30/kWh okanye ngaphezulu, ixesha lokubuyisela imali kwibhokisi yodonga ye-$5,000 DC (kuquka nokufakelwa) linokuba mfutshane njengeminyaka emi-4 ukuya kwemi-6 xa kujongwa ukonga kwe-V2H kunye nokulungiswa kwamandla elanga. Kwiimarike ezinezinga elilinganayo, ixesha lokubuyisela imali liyakhula, okwenza isixhobo sibe "sesona sithengiso sixabisekileyo nesinobunewunewu" kunokuba sithengiswe ngemali kuphela.

8.5 Ukugcinwa kunye nexabiso lentsalela

Iibhokisi zodonga ze-AC zemveli zihlala ziphathwa njengezixhobo ezilahlwayo. Ngokwahlukileyo koko, iibhokisi zodonga ze-DC zakhiwe ngokwemigangatho yemizi-mveliso. Ixabiso lazo eliseleyo kwimarike yesibini lisenokuhlala liphezulu, njengee-inverters zelanga eziphezulu. Ngaphezu koko, njengoko amakhaya evavanywa ngakumbi ngokusekelwe kwi-"Energy IQ" yawo, ibhokisi yodonga ye-DC efakwe kwangaphambili inokunceda kwi-premium ye-2% ukuya kwi-5% kwixabiso lokuthengiswa kwepropathi.

Isahluko 9: Ubunewunewu kunye nexabiso lophawu – Kutheni iiMarike zeZindlu eziPhezulu zikhetha i-DC

Kwicandelo lezindlu ezikumgangatho ophezulu kunye neemoto ezikumgangatho ophezulu, i-"Wallbox DC" iye yaba luphawu olubalulekileyo, njengekhitshi elikumgangatho ophezulu okanye iholo yemidlalo yasekhaya. Imele ukuzinikela kubuchwepheshe, ukusebenza, kunye nokugcinwa kwendalo.

9.1 Ingxoxo ethi “Ixesha Lodwa Lobunewunewu”

Kumnini wemoto ye-EV esebenza kakuhle njengePorsche Taycan okanye iLucid Air, ukulinda iiyure ezili-10 ukuze itshajwe ngokupheleleyo kuyinto enzima. Ibhokisi yodonga yeDC enokubonelela "ngokongeza" kwiiyure ezili-1.5 ifana nendlela yokuphila yomntu oxabisa kakhulu. Ukukwazi ukubuyela ekhaya emva kohambo lwegalufa lwasekuseni kwaye ube nemoto egcweleyo elungele intlanganiso yasemva kwemini sisiphakamiso sexabiso esidlula izibalo ezilula zombane.

9.2 Ukuhlanganiswa kunye noYilo loBuhle

Iibhokisi zodonga zeDC zodidi oluphezulu (ezivela kwiimpawu ezifana neWallbox, Delta, okanye ABB) zenzelwe ukuhambelana noyilo oluphezulu. Iimpawu ziquka:

• Izixhobo zePremium:I-aluminium ebhrashiweyo, iglasi eqinisiweyo, kunye ne-carbon fiber accents.
• Ulawulo lweeCable ezifihliweyo:Ii-retractors zekhebula ezineenjini okanye iinkqubo "zokufaka kunye nokulahla" ezigcina umgangatho wegaraji ucocekile.
• I-Biometric kunye ne-Smart Lighting:Iitshaja ezibona umsebenzisi ngefowuni okanye ngeminwe yakhe kwaye zibonelela ngokukhanya okubonakalayo okubonisa imeko yokutshaja ngokujonga nje.

9.3 Uxabiso lwezindlu nezakhiwo

Abaphuhlisi abacinga phambili bathengisa izindlu ezibizwa ngokuba yi-“Net Zero Luxury”. Ikhaya elixhotyiswe kwangaphambili ngetshaja ye-DC engama-20kW ejikelezayo lithengiswa njenge-“V2H Ready.” Kwimarike exhalatyiswa kakhulu kukungazinzi kwegridi kunye notshintsho lwemozulu, olu phawu lubonelela ngexabiso elingcono lokuthengisa kwakhona, lutsala abathengi abanolwazi ngobuchwepheshe abajonga itshaja ye-AC eqhelekileyo njenge-“legacy tech.”

9.4 Amava "eFlagship" kubenzi beemoto

Abenzi beemoto eziphambili basebenzisana nabavelisi beetshaja zeDC ukubonelela ngezisombululo zokutshaja ekhaya ezinophawu. Xa umthengi ethenga i-EV ye-$150,000, umenzi weemoto ufuna ukuqinisekisa ukuba amava okutshaja ahambelana namava okuqhuba. Ibhokisi yodonga yeDC enophawu ibonelela "ngenkqubo yendalo" edibeneyo eyakha ukuthembeka kophawu kwaye inciphise "uxinzelelo olujikeleze uluhlu" ngokubonelela ngesiqabu "soxinzelelo olukhawulezileyo".

9.5 Ixabiso Lengqondo Lokuthi “Akukho Kulinda”

Ngaphaya kwesantya somzimba, kukho utshintsho olukhulu lwengqondo kwindlela umninimzi ajonga ngayo isithuthi sakhe xa enebhokisi yodonga ye-DC. Ngetshaja ye-AC eqhelekileyo, imoto idla ngokubonwa “njengebuthathaka”—isixhobo esifuna ukulungiswa rhoqo, kancinci. Ngetshaja ye-25kW DC, imoto ibonwa “njengefumanekayo.” Oku kunciphisa umthwalo wengqondo wokuba ngumnini we-EV, kususa isidingo sokucwangciswa ngononophelo kwemisebenzi kunye nohambo. Kubathengi abakumgangatho ophezulu, olu lwazi lwengqondo ludla ngokuba lolona phawu luxabisekileyo kuyo yonke inkqubo.

Isahluko 10: Imeko-bume yoLawulo kunye neKamva leMigangatho yokuTshaja ngoBukrelekrele

Njengoko ubuchwepheshe bokutshaja kwe-DC yokuhlala bukhula, imeko-bume yolawulo iyasokola ukuhambisana nesantya. Utshintsho ukusuka ekutshajeni "okungacacanga" ukuya ekusebenzisaneni kwe-DC okuhamba ngamacala amabini lufuna iseti yemithetho ehambelanayo ebandakanya imigangatho yeemoto, iikhowudi zombane, kunye neenkqubo zonxibelelwano lwezixhobo.

10.1 Umgangatho we-ISO 15118-20: Ulwimi oluQhelekileyo

Eyona nto ibalulekileyo kwindawo yokutshaja yi-ISO 15118-20 standard, edla ngokubizwa ngokuba yi-“Plug & Charge” enenkxaso ye-bi-directional. Le protocol ivumela oku kulandelayo:

• Ukuqinisekiswa Okuzenzekelayo:Imoto izichaza kwibhokisi yodonga yeDC kwangoko nje ukuba ixhunyiwe, nto leyo esusa imfuneko yee-apps okanye amakhadi e-RFID.
• Ulawulo loMthwalo oluDynamic:Unxibelelwano oluneenkcukacha malunga nemeko yebhetri, ubushushu, kunye neemfuno zokutshaja.
• Inkxaso yeendlela ezimbini:Lo mgangatho ubhala ngokusemthethweni ukuxhawulana okufunekayo kwi-V2H nakwi-V2G, ukuqinisekisa ukuba i-Ford EV inokuthetha netshaja yeWallbox kunye ne-interface yegridi ye-Siemens ngaphandle kweengxaki zokuhambelana.

10.2 Uphuhliso lweKhowudi yoMbane: i-NEC kunye ne-IEC

Iikhowudi zombane zelizwe nehlabathi ziyahlaziywa ukuze zibandakanye "ii-DC Microgrids."

• Inqaku le-NEC 706 (Iinkqubo zokugcina amandla):E-United States, iKhowudi yoMbane yeSizwe ngoku inika izikhokelo ezicacileyo zendlela yokuphatha i-EV njengenkqubo yokugcina izinto. Oku kuquka iimfuno zokuvala ngokukhawuleza kunye nokumisa umhlaba, ezingqongqo ngakumbi kwiinkqubo ze-DC kuneenkqubo ze-AC.
• Ii-Interlocks zoKhuseleko:Iibhokisi zodonga zeDC zifuna ukufunyanwa kokuvuza komhlaba okuphucukileyo kunye nokukhuselwa kwe-arc-flash. Ngenxa yokuba ii-DC arcs azinawo "umgca onqamlezayo" njenge-AC, kunzima ukuzicima. Iitshaja zeDC zanamhlanje ziquka uqhagamshelo olungafunekiyo lwe-elektroniki kunye nolwe-mechanical ukuqinisekisa ukhuseleko lwendlu.

10.3 Unxibelelwano lweZixhobo kunye nokuMitha iNet

Izixhobo zikagesi zezona zigcina-mva zokugqibela. Ukuze umninimzi asebenzise i-V2G, iinkonzo zikagesi kufuneka zivume "isivumelwano sokunxibelelana."

• IEEE 1547:Lo mgangatho ulawula indlela imithombo yamandla esasazwe ngayo (njenge-EV eqhagamshelwe yi-DC) enokunxibelelana ngayo negridi. Uqinisekisa ukuba ukuba igridi iyawa, i-EV ayisayi kubuyisela umbane kwimigca ukukhusela abasebenzi beenkonzo (abachasene nokwakhiwa kweziqithi).
• Izinto Ezintsha Zokuhlawulisa:Sibona ukunyuka kwe-"Real-Time Pricing" (RTP). Kule modeli, i-DC wallbox sisixhobo semali, sithenga amandla ngamaxabiso aphantsi (aqhelekileyo kwiindawo ezinomoya omninzi) size siwathengise kwakhona ngexesha loxinzelelo olukhulu.

Isahluko 11: Iimeko zokuphunyezwa – Izifundo zeMeko yokwenyani

Ukuze siqinisekise ezi ngcamango zobugcisa ukuba ziyinyani, makhe sihlolisise iimeko ezintathu ezahlukeneyo zokusetyenziswa apho iibhokisi zodonga zeDC zibonelela ngexabiso lokuguqula izinto.

Isifundo seTyala A: Ikhaya laseNtlango eliZilungeleyo ngeLanga (eArizona, e-USA)

Ukuseta:Ikhaya elingange-4,000 sq. ft. eline-15kW ye-rooftop solar, i-20kW DC wallbox, kunye ne-100kWh EV.Ingxaki:Le nkampani ibonelela ngeenkonzo zasekuhlaleni “ixabiso eliphezulu leemfuno” kunye nekhredithi ephantsi yokuthumela ngaphandle umbane welanga.Isisombululo seDC:Umninindlu usebenzisa ibhokisi lodonga le-DC ukutshaja i-EV ngqo kwiiphaneli zelanga kwi-15kW DC. Ngokuphepha ukulahleka kokuguqulwa kwe-AC-DC kunye "nomntu ophakathi" oluncedo, ikhaya lifikelela kwi-95% yokuzisebenzisa ngokwalo kwelanga. Ngexesha loxinzelelo lwangokuhlwa (4 PM - 8 PM), ibhokisi lodonga le-DC libonelela ngenkxaso ye-V2H ye-8kW, linika amandla iipompo ze-AC kunye nedama lokudada. Oku kususa imfuneko yenkqubo yebhetri engashukumiyo ye-$20,000, okonga imali eninzi yomninindlu ngelixa eqinisekisa ukuba imoto yakhe ilungele uhambo lwakusasa.

Isifundo seTyala B: Indlu yokuHlala eneZindlu ezininzi eziNtofontofo (eLondon, e-UK)

Ukuseta:Isakhiwo seeflethi esikumgangatho ophezulu esinendawo zokupaka ezili-10, nganye ixhotyiswe ngekhabhathi yamandla ye-50kW DC ekwabelwana ngayo kunye "neeyunithi zeentloko" ezizodwa.Ingxaki:Umbane opheleleyo wesakhiwo ulinganiselwe. Ukufakela iitshaja ze-AC eziyi-10 x 22kW kuya kufuna ukuphuculwa kwesitishi esikhulu, esixabisa izigidi zeepawundi.Isisombululo seDC:Isakhiwo sisebenzisa ichibi lamandla le-DC eliphakathi. Endaweni yeeyunithi ezili-10 ezahlukeneyo ze-AC, inkqubo yabela ngamandla amandla e-50kW DC kuyo nayiphi na imoto eyidinga kakhulu. Ngenxa yokuba ukutshaja kwe-DC kulawulwa ngedijithali kwaye kusebenza kakuhle, isakhiwo sinokuxhasa ii-EV ezili-10 kwi-utility feed ekhoyo. Abemi bayayonwabela amava "e-concierge" esantya sokutshaja se-25kW, into engenakwenzeka ngeziseko ezisemgangathweni zesakhiwo se-AC.

Isifundo seTyala C: "Ukuphunyuka" okukude ngaphandle kweGridi (iiScottish Highlands)

Ukuseta:Indawo yokuhlala ekude esebenza nge-micro-hydro turbine kunye nejenereyitha yomoya encinci.Ingxaki:I-micro-grid ibuthathaka kwaye ayinakukwazi ukusingatha "umsinga wokungena" weenkqubo zokutshaja ze-AC zemveli.Isisombululo seDC:Ibhokisi yodonga yeDC isebenza njenge-buffer enobuchule. Itsala umsinga we-DC ozinzileyo, ophantsi kwamandla ukusuka kwinkqubo ye-hydro/wind ukuya kwibhetri encinci ye-buffer, ize "iqhumise" loo mandla kwi-EV kwi-20kW DC xa kufuneka. Ulawulo oluchanekileyo lwetshaja yeDC luthintela i-micro-grid ekuweni, nto leyo evumela ukuba i-EV ibe yinxalenye yeekona ezikude zeplanethi.

Isahluko 12: Imingeni yoBugcisa kunye namaqhinga okunciphisa

Nangona iingenelo zinkulu, indlela eya ekutshajisweni kwe-DC yokuhlala iyonke ayizizo iingxaki. Ukujongana nale mingeni yeyona nto iphambili kwi-R&D yangoku kweli candelo.

12.1 Ingxolo Ephindaphindayo Kakhulu kunye Nokuhambelana Kwe-Electromagnetic (EMC)

Ukusebenzisa i-20kW SiC converter kwi-200kHz kwigaraji yokuhlala kunokubangela ingxolo enkulu ye-electromagnetic. Ukuba ayikhuselwanga kakuhle, le ngxolo inokuphazamisana ne-Wi-Fi yasekhaya, imiqondiso yeselfowuni, kwane-sensor suite yemoto.Ukunciphisa:Abavelisi abaphambili basebenzisa izihluzi ze-EMI ezinamanqanaba amaninzi kunye nokutshintsha kwe-"spread-spectrum". Ngokutshintsha kancinci i-frequency yokutshintsha endaweni yokuhlala kwincochoyi enye emiselweyo, "ingxolo" isasazeka kwibhendi ebanzi, nto leyo enciphisa ukuphazamiseka kwencochoyi ukuya kumanqanaba ahambelana nemigangatho engqongqo ye-FCC yokuhlala kunye ne-CE.

12.2 IiHarmoniki zeGridi kunye noMgangatho waMandla

Iitshaja ezinkulu zeDC zinokubuyisela "iiharmoniki" kwiphaneli yombane. Ezi ziimpazamo ze-sine wave ecocekileyo enikezelwa yile nkampani. Iimpazamo eziphezulu zeharmonic zinokubangela ukuba ezinye iimoto (ezifana nezo zikwiifriji okanye kwiimashini zokuhlamba) zisebenze zishushu ngakumbi kwaye zingasebenzi ngaphambi kwexesha.Ukunciphisa:Iibhokisi zodonga zeDC zisebenzisa iisekethe ze-Active Power Factor Correction (APFC). Ezi sekethe ziqinisekisa ukuba umbane otsalwa kwigridi ukwisigaba esifanelekileyo kunye nombane, zigcina "uMbane" we->0.99 kwaye zigcina ukuphambuka kwe-harmonic epheleleyo yendlu (TTHD) ngaphantsi kwemida echazwe yi-IEEE 519 kunye ne-IEC 61000-3-2. Ngombane ongaphezulu kwe-0.99 kunye ne-THD edla ngokuba ngaphantsi kwe-5% xa umthwalo ugcwele, i-wallbox yanamhlanje ye-SiC ngokwenene iphucula umgangatho wamandla wendlu: isiphelo sangaphambili se-APFC sigcina umbane uhambelana ngokuchanekileyo kangangokuba izixhobo ezixhunyiweyo zibona i-waveform ecocekileyo kunokuba zingenza kwii-elektroniki ezininzi zasekhaya.

12.3 Ulawulo lobushushu kwindawo yokuhlala

Ibhokisi yodonga ye-20kW DC igxininisa ubushushu obuninzi ngendlela eyilelwe ukuhlala egaraji. Inzuzo yokusebenza kakuhle kwe-SiC ibaluleke kakhulu apha. Ngobuchule be-97-98%, iyunithi ye-20kW ichitha malunga ne-400-600W yobushushu — xa ithelekiswa ne-1,000W okanye ngaphezulu kuyilo olufana nolwe-silicon. Loo mahluko uvumela ibhokisi yodonga ukuba isebenzise ukupholisa okuvaliweyo, okungenafeni kwimozulu ezininzi, nto leyo esusa indawo yokusilela eqhelekileyo kwizixhobo zokutshaja: iifeni ezivalekileyo kunye nengxolo ehambelana nazo.

Kwizinto ezifakelwe kwiigaraji ezingafakwanga manzi, i-thermal envelope ibalulekile. Inqanaba lamandla etshaja liyawohloka ngobuhle: njengoko ubushushu obuphakathi bunyuka ngaphezu kwama-40°C (104°F), iyunithi inciphisa ngokuzenzekelayo amandla okukhupha ngokunyusa okuthe tye, ikhusela izinto zangaphakathi ngelixa iqhubeka nokutshaja imoto ngesantya esiphantsi. Umqhubi uhlala eyazi imeko yangoku nge-app encedisayo, ebika amandla otshaja kunye ne-thermal headroom.

12.4 Ukhuseleko, Isiqinisekiso, kunye neMbono weKhaya liphela

Ukutshaja kwe-DC yokuhlala kufuna ukhuseleko olufana nolwezixhobo ezisetyenziswayo. Ibhokisi yodonga ibandakanya ukhuseleko lwempazamo yomhlaba, ukufunyanwa kwempazamo ye-arc, kunye ne-"Type B" RCD (isixhobo sangoku esisele) esikwaziyo ukubona imisinga yokuvuza ye-DC engaphoswa yi-RCDs ze-AC kuphela. Ukuvalwa kobushushu obugqithisileyo, ukukhuselwa kwe-reverse-polarity, kunye nee-contactors ezingafunekiyo ziqinisekisa ukuba imo yokusilela kwimeko embi kakhulu yi-disconnect ekhuselekileyo nelawulwayo - ayiso-arc engalawulekiyo.

Okubalulekileyo kukuba, ibhokisi yodonga inxibelelana nge-OCPP nenkqubo yolawulo lwamandla yomninimzi. Xa idibene ne-solar yophahla kunye nebhetri yasekhaya, inokutshaja imoto kuphela nge-solar engaphezulu, umbane wokuthumela ekhaya (V2H) ngexesha lesantya esiphezulu sombane, kunye nomthwalo ophantsi ngexesha leengxamiseko zegridi. Isiphumo sisixhobo samandla esinye, esidibeneyo endaweni yengqokelela yezixhobo ezizimeleyo - kunye nekhaya eligcina izibane zalo zivuliwe xa igridi ingavulwa.

Ukulula kokufakwa kubaluleke kakhulu.Ibhokisi yodonga ye-20kW DC ezinikeleyo iqhagamshela kwiphaneli ekhoyo yendlu ngesixhobo esinye esiqhekezayo esinezigaba ezintathu okanye esiqhekekileyo, kwaye imitha yamandla eyakhelwe ngaphakathi yetshaja isusa isidingo sokufakelwa kwe-CT-clamp eyahlukileyo kwiindlela ezininzi zokucwangcisa. Nokuba ifakwe kwakhona kwigaraji egqityiweyo okanye ichazwe kulwakhiwo olutsha, i-form factor efakwe eludongeni encinci kunye ne-pedestal mount ekhethiweyo inika abanini bezindlu kunye noosombane ukuguquguquka - kwaye ukufakelwa ngakunye kuxhaswa yi-CE, i-UL, kunye neziqinisekiso zasekuhlaleni ezenza ukuba imvume ibe lula.

Izinto ezibalulekileyo ekufuneka ziqwalaselwe

• Iziphelo zangaphambili ze-APFC zibambe amandla angaphezu kwe-0.99 kunye nokuphazamiseka kwe-harmonic ngaphakathi kwemida ye-IEEE 519, okukhusela izixhobo zasekhaya.
• Ukusebenza kakuhle kweSiC kwenza ukuba izindlu ezipholileyo ezingenamoya, ezipholileyo, zikwazi ukufudumala kakuhle.
• Ii-RCD zohlobo B, ukufunyanwa kwempazamo ye-arc, kunye nolawulo lwamandla olusekelwe kwi-OCPP kwenza ibhokisi lodonga ibe sisixhobo sasekhaya esikhuselekileyo nesinobuhlobo negridi.
• Ubuchule be-V2H buguqula imoto ibe ngumthombo wamandla ongezelelweyo, nto leyo enika amandla okwenyani xa imoto ingasebenzi.

Qhagamshelana ne-MIDA Power

Iitshaja ze-DC zebhokisi lodonga ze-MIDA Power — ukusuka kwi-20kW ukuya kwi-60kW — zenzelwe imarike yokuhlala kunye neyezorhwebo ezincinci ezinezigaba zamandla ze-SiC, ukulungela i-ISO 15118 Plug & Charge, kunye nokuthobela i-OCPP 1.6J/2.0.1 epheleleyo. Ukuze ufumane amaphepha edatha, izikhokelo zokufakela, okanye ikowuteshini yeprojekthi yakho, nxibelelana neqela lethu lentengiso. Iinjineli zethu ziya kukunceda wenze ubungakanani bebhokisi lodonga elifanelekileyo lomthamo wephaneli yakho, uluhlu lwelanga, kunye noqwalaselo lwebhetri yasekhaya.