Ukutshala imali kuma-Wallbox DC Home Chargers: Ukusebenza Kahle kwe-SiC, Ukuqina kwe-V2H, kanye Nokuzinza

Ushintsho Oluphelele Lobuchwepheshe Lokuhamba Kwezindawo Zokuhlala: Kungani Ukutshala Imali Kumashaja Ezindlu eWallbox DC Kudlula Izithiyo ze-OBC, Kuvumela Ukuqina kwe-V2H/V2G, Futhi Kukhulisa Ukusebenza Kahle Kwamandla Nge-SiC Technology Yokuphila Okusimeme Okufakazela Ikusasa

Isifinyezo

Ushintsho lomhlaba wonke oluya ekuhambeni kukagesi lungena esigabeni sesibili nesiyinkimbinkimbi. Ngenkathi ishumi leminyaka lokuqala ligxile ekwamukelweni kwezimoto kanye nengqalasizinda yomphakathi, ishumi leminyaka lamanje lichazwa ngokwenziwa ngcono kwesistimu yokushaja yokuhlala. Enhliziyweni yalokhu kuthuthuka kukhona i-Wallbox DC Home Charger. Ngokwesiko, ukushaja kwezindlu bekulokhu kuyisizinda seziteshi ze-Alternating Current (AC) Level 2, ezithembele ku-On-Board Charger yangaphakathi yemoto (OBC). Kodwa-ke, imikhawulo yobuchwepheshe ye-OBC—elawulwa isisindo, ivolumu, kanye nezindleko—idale isithiyo esizukulwaneni esilandelayo sezindlu ezingasebenzisi amandla.

Lesi sihloko sinikeza ukucwila okujulile kwamagama angu-6,000 ekuphakameni kobuchwepheshe, kwe-electrochemical, kanye nakwezomnotho kwama-wallbox e-DC. Sihlola ukuthi la madivayisi adlula kanjani i-OBC ukuze anikeze ukushaja okusheshayo nokusebenza kahle; indlela asebenzisa ngayo ama-semiconductor e-Silicon Carbide (SiC) ukunciphisa ukulahlekelwa ukushisa; nokuthi kungani eyisisekelo esibalulekile sezinhlelo zokusebenza ze-Vehicle-to-Home (V2H) kanye ne-Vehicle-to-Grid (V2G). Ngaphezu kwalokho, sihlaziya ukuhlanganiswa kwamashaja e-DC ku-Home Energy Management Systems (HEMS), indima yawo ekukhiqizweni kwezindlu zikanokusho, kanye nomzila wesikhathi eside wezindleko nezinzuzo njengezikali zokukhiqiza.

Isahluko 1: Ushintsho Lwepharadayimu Ekushajweni Kwe-EV Yasekhaya – Kusukela Ku-AC Utility Kuya Ku-DC Intelligence

Umlando wokushaja izimoto zikagesi (EV) ube ngowokuyekethisa. Ezinsukwini zokuqala zesikhathi sesimanje se-EV, umgomo oyinhloko kwakuwukuqinisekisa ukuthi imoto ingagcwaliswa kabusha ubusuku bonke kusetshenziswa ingqalasizinda kagesi ekhona. Lokhu kwaholela ekubuseni kokushaja kwe-AC. Ekusethweni kwe-AC, ibhokisi lodonga empeleni liyiswishi yokuphepha ekhazimulayo (i-EVSE - Electric Vehicle Supply Equipment) edlulisela amandla e-AC asetshenziswa ngqo emotweni. Ukuphakamisa okunzima—ukuguqula lawo mandla e-AC abe amandla e-DC adingwa yibhethri—kwenziwa yi-On-Board Charger (OBC) yemoto.

Nakuba ukushaja i-AC kungabizi kakhulu ukukufaka, kunqunyelwe kakhulu. Njengoba amandla ebhethri ekhula kusuka ku-60kWh kuya ku-100kWh nangaphezulu, isikhathi esidingekayo ukushaja ku-7kW noma ku-11kW AC siba yisithiyo sezokuthutha emindenini esetshenziswa kakhulu. Okubaluleke kakhulu, i-AC paradigm iphatha i-EV njengomthwalo ongasebenzi—“isinki” samandla.

Ngena ku-Wallbox DC Home Charger. Ngokususa inqubo yokuguqula i-AC ibe yi-DC emotweni bese uyiyisa kuyunithi ebekelwe odongeni, sivula isici esisha sokusebenza. Lokhu kushintsha kumele ushintsho oluvela ku-“AC Utility” luye ku-“DC Intelligence.” I-DC wallbox akuyona nje ishaja; iyisikhungo se-electronics samandla esiyinkimbinkimbi. Ixhumana ngqo ne-Battery Management System (BMS), inikeza ukulawulwa kwe-voltage kanye nokwamanje okuqondile okudlula imikhawulo yangaphakathi yemoto.

Lesi sahluko sihlola izitayela ezinkulu eziqhuba lolu shintsho:

1. Ukuphishekela Isivinini:Ama-EV aphezulu manje asekela izakhiwo ze-800V. Amashaja e-AC awakwazi ukusizakala ngalezi zivinini ekhaya. Amabhokisi odonga e-DC, ngisho nasezingeni eliphansi lamandla okuhlala (isb., 20kW kuya ku-30kW), anikeza ukuthuthukiswa okukhulu kuneziyunithi ze-AC ezijwayelekile ze-7kW.
2. Ubukhosi Bamandla:Ukwanda kwesitoreji selanga nebhethri sendawo yokuhlala kudala "i-DC ecosystem." Ukuguqula amandla elanga e-DC abe yi-AC yendlu, bese kubuyiselwa ku-DC yemoto, kuhilela ukulahlekelwa kokuguqulwa okuningi. Indawo yasekhaya ehlanganiswe yi-DC, enebhokisi lodonga le-DC enkabeni yayo, inciphisa lezi "ntela zokuguqulwa."
3. Igridi Ehlakaniphile:Njengoba izinsiza ziqhubekela phambili ekusetshenzisweni kwamanani ngesikhathi sokusetshenziswa kanye nezinhlelo zokuphendula isidingo, ukulawulwa okuhlanganisiwe okunikezwa izinhlelo ze-DC kuvumela abanikazi bezindlu ukuthi bahlanganyele ekuzinzisweni kwegridi ngempumelelo kakhulu kunezilungiselelo ze-AC zendabuko.

Isahluko 2: Ukwehlukana Kobuchwepheshe – Ukweqa Imbobo Yesitsha Sokushaja Esisebhodini (i-OBC)

Ukuze uqonde ukuthi kungani ukushaja kwe-DC ekhaya kuyinto entsha, umuntu kufanele aqale aqonde “i-OBC Bottleneck.” Yonke i-EV eshaja i-AC iqukethe i-On-Board Charger. Le ngxenye iyi-inverter yamandla ethatha i-120V noma i-240V AC bese iyilungisa ibe yi-DC voltage yebhethri.

Kodwa-ke, i-OBC iyisisulu sefiziksi yezimoto. Ngenxa yokuthi kumele ihambe nemoto, ingaphansi kwemingcele eqinile:

• Isisindo kanye nevolumu:Ikhilogremu ngayinye ye-OBC iyikhilogremu yesisindo enciphisa ububanzi bemoto. Ngenxa yalokho, abakhiqizi abaningi bavala i-OBC ku-7kW noma i-11kW ukuze bonge isikhala nesisindo.
• Ukuphathwa Kokushisa:Ukuguqula amandla angu-11kW kudala ukushisa okukhulu. I-loop yokupholisa yemoto kumele isuse lokhu kushisa, okudla amandla engeziwe.
• Izindleko:Ama-OBC anamandla amakhulu (isb., 22kW) ayabiza kakhulu ukuwakhiqiza futhi avame ukuncishiselwa kumamodeli asezingeni eliphezulu noma ukuthuthukiswa okukhethwayo.

Uma usebenzisa i-Wallbox DC Home Charger, i-OBC ayisebenzi nhlobo. I-DC wallbox ixhuma ngqo ebhethrini lemoto ngamaphini e-DC esixhumi se-CCS noma se-NACS. Lokhu kunemiphumela eminingana ejulile:

2.1 Ubuningi Bamandla Aphezulu Ngaphandle Kwesisindo Semoto

Ngokubeka ihadiwe yokuguqula odongeni lwegaraji, onjiniyela abasavinjelwa yimikhawulo yesisindo semoto. Singasebenzisa ama-inductor amakhulu, ama-capacitor aqinile, kanye nezinhlelo zokupholisa ezisezingeni eliphezulu. Lokhu kuvumela isivinini sokushaja sendawo yokuhlala esingu-15kW, 20kW, noma ngisho no-25kW—isivinini esingeke sibe nokwenzeka ngokomzimba nangokwezomnotho ukuhlanganiswa nemoto uqobo.

2.2 Izinzuzo Zokusebenza Kahle

Ukusebenza kahle kwe-OBC kuvame ukuba phakathi kuka-85% no-92%. Ukulahlekelwa "kokuhamba nokubuya" kubalulekile uma ucabanga ngezinkulungwane zemijikelezo yokushaja eminyakeni eyishumi edlule. Amabhokisi odonga e-DC, asebenzisa izingxenye zezinga lezimboni kanye nokupholisa okukhethekile, angafinyelela ukusebenza kahle okungaphezu kuka-96%. Ngokudlula i-rectifier yangaphakathi yemoto, amandla aya ngqo kusuka kugridi (noma i-solar) aye endaweni yokugcina amakhemikhali yebhethri ngaphandle kokungcola okuningi.

2.3 Ukuthembeka Nokusebenza Kahle

Uma i-OBC ihluleka, imoto isuke ivaleleke kahle futhi idinga ukulungiswa okubizayo nokuyinkimbinkimbi endaweni yokuthengisa. Uma ibhokisi lodonga le-DC lihluleka, imoto isengashajwa esiteshini somphakathi noma ngeshaja ephathekayo ye-AC, futhi ibhokisi lodonga ngokwalo lingalungiswa noma lithathelwe indawo ugesi ngaphandle kokuthinta izingxenye zangaphakathi zemoto ezinamandla aphezulu.

Isahluko 3: Izinzuzo Zamakhemikhali Kagesi – Ukuthuthukisa Ubude Bebhethri Nokusebenza Kahle

Umbono ovamile oyiphutha ukuthi “ukushaja i-DC kubi kumabhethri.” Nakuba ukushaja i-DC yomphakathi okusheshayo kakhulu (350kW+) kungabangela ukucindezeleka kokushisa,Ukushaja kwe-DC yendlu yokuhlala(ebangeni elisukela ku-10kW kuya ku-25kW) empeleni "iyindawo emnandi" ye-electrochemical enikeza izinzuzo eziningana kunokushaja kwe-AC.

3.1 Ukuguqulwa Kobubanzi Bokushaya Kwenhliziyo Okunembile (PWM) kanye Nokulawulwa Kokugoba

Inqubo yokuguqulwa kwe-AC-to-DC ku-OBC yemoto ivame ukukhiqiza "ugesi ogelezayo" — ukushintshashintsha okuncane kokukhipha kwe-DC okungabangela ukushisa okuncane ngaphakathi kwamaseli ebhethri. Amabhokisi odonga e-DC aphezulu asebenzisa amaprosesa esignali yedijithali athuthukisiwe (ama-DSP) ukuhlinzeka ngesignali ye-DC "ehlanzekile" kakhulu. Lokhu kuzinza kunciphisa ukulahlekelwa kokumelana kwangaphakathi ngaphakathi kwamaseli e-Li-ion ngesikhathi senqubo yokushaja.

3.2 Amajika Okushaja Aguquguqukayo

Uma ishaja nge-AC, i-BMS yemoto kumele icele amandla avela ku-OBC, bese idonsa odongeni. Lokhu kuxhumana okunezinyathelo eziningi kungaba nokubambezeleka. Ibhokisi lodonga le-DC lixhumana ngokwendabuko ne-BMS ngephrothokholi ye-ISO 15118. Lokhu kuvumela ijika lokushaja elinamandla neliphendulayo. Uma i-BMS ithola ukwenyuka okuncane kwezinga lokushisa kumojuli weseli ethile, ibhokisi lodonga le-DC lingalungisa ngokushesha ukugeleza kwamanje, ngokunembe kakhulu kunalokho i-OBC engakwenza.

3.3 Ukunciphisa “Ukushisa Kokuguqulwa”

Ngesikhathi sokushaja kwe-AC, ukushisa okukhiqizwa yi-OBC kuvame ukudluliselwa ephaketheni lebhethri ngoba babelana ngesekethe efanayo yokupholisa futhi baseduze. Lo mthwalo wokushisa wesibili ungasheshisa ukuwohloka kwe-electrolyte. Ngokuhambisa inqubo yokuguqula ukushisa ebhokisini lodonga, ibhethri lemoto lihlala lipholile ngesikhathi seseshini, kulondolozwa impilo yesendlalelo se-SEI (Solid Electrolyte Interphase) ku-anode.

Ngamafuphi, ukushaja kwe-DC yokuhlala kunikeza isivinini seshaja esheshayo "ngobumnene" beshaja ehamba kancane, konke lokhu kugcina ukuzinza okuphezulu kwe-electrochemical isikhathi sokuphila kwebhethri.

Isahluko 4: Ubuchwepheshe be-Silicon Carbide (SiC) – Inhliziyo Yokuguqulwa Kokusebenza Kakhulu Kakhulu

Isithako esiyimfihlo esenza amabhokisi odonga e-DC anamuhla abe nokwenzeka ekhaya ukushintsha kusuka kuma-MOSFET e-Silicon (Si) nama-IGBT endabuko kuya kuma-semiconductor e-Silicon Carbide (SiC). I-SiC iyinto ebanzi ye-bandgap (WBG) eshintshe kakhulu isimo se-elekthronikhi yamandla.

4.1 Izakhiwo Eziphakeme Ze-Bandgap

Igebe le-Silicon Carbide libanzi cishe ngokuphindwe kathathu kunele-silicon evamile. Lokhu kuvumela amadivayisi e-SiC ukuthi asebenze ngama-voltage aphezulu kakhulu kanye namazinga okushisa. Ebhokisini lodonga le-DC, lokhu kusho ukuthi iyunithi ingaphatha izidingo zamabhethri e-EV esimanje angu-400V noma angu-800V ngengxenye encane yengxenye.

4.2 Ukulahlekelwa Okuncishisiwe Kokushintsha

Inzuzo ebaluleke kakhulu ye-SiC eshajeni yasekhaya ukunciphisa ukulahlekelwa kokushintsha. Izinkinobho ze-silicon zendabuko zilahlekelwa amandla njalo lapho zivula futhi zivala, ikakhulukazi ngenxa yezikhathi zazo zokuphendula ezisheshayo kanye namandla aphezulu. Izinkinobho ze-SiC zingasebenza kumaza aphezulu kakhulu (ngokuvamile aphindwe kayi-10 kune-silicon). Lokhu kushintsha kwamaza aphezulu kuvumela:

• Ama-Magnetic Amancane:Ngenxa yokuthi imvamisa yokushintsha iphakeme, ama-inductor nama-transformer angaphakathi kwebhokisi lodonga angaba mancane kakhulu futhi alula. Yilokhu okuvumela ishaja engu-20kW DC ukuba ibe ncane ngokwanele ukuba ilenga odongeni lwegaraji kunokuba ikhabethe elingangesiqandisi.
• Ukusebenza Kahle Okuphezulu:I-SiC inciphisa ukulahleka kwamandla ngamaphesenti afinyelela ku-80 uma kuqhathaniswa nokuguqulwa okusekelwe ku-silicon. Kumnikazi wendlu, lokhu kusho ukwehlisa izikweletu zikagesi kanye nokunciphisa ukushisa okulahlwayo.

4.3 Ukuphathwa Kokushisa Nokuthembeka

Ngenxa yokuthi i-SiC isebenza kahle kakhulu, ikhiqiza ukushisa okuncane. Ukushisa okuncane kusho ukuthi ibhokisi lodonga lingase lingadingi abalandeli bokupholisa abanomsindo, abanakekela kakhulu. Amabhokisi amaningi odonga e-DC asekelwe ku-SiC angasebenzisa ukupholisa okumanzi okungenamsebenzi noma imiklamo yokushisa ethuthukisiwe. Lokhu kwandisa isikhathi sokuphila kwe-elekthronikhi, njengoba ukujikeleza kokushisa kuyimbangela yokuqala yokwehluleka kwezingxenye ezinhlelweni zamandla.

4.4 Ukuhlaziywa Kokuqhathanisa: I-Si vs. I-SiC Ezicelweni Zokuhlala

Ukuze umuntu aqonde ngempela i-SiC, kufanele abheke ukuthuthuka kwenani. Ku-converter ejwayelekile engu-20kW:

• Ukunciphisa Unyawo:Uhlelo olusekelwe ku-silicon lungadinga indawo ebiyelwe engamalitha ayi-15 ukuze kufakwe amafeni okupholisa kanye nama-inductor amakhulu. Uhlelo olusekelwe ku-SiC lungangena endaweni ebiyelwe engamalitha ayi-4, okuwukwehla okungu-73% komthamo.
• Imvamisa Yokushintsha:Ama-Silicon IGBT ngokuvamile anqunyelwe ku-20kHz kuya ku-30kHz ngenxa yemikhawulo yokushisa. Ama-SiC MOSFET asebenza kahle ku-100kHz kuya ku-300kHz. Lokhu akuyona nje i-technical vanity metric; ihlobene ngqo nesisindo se-copper windings kuma-transformer, okubalwa ingxenye enkulu ye-bill of materials (BOM).
• Ukusebenza kahle ngomthwalo oyingxenye:Amashaja amaningi asekhaya asebenza ngomthwalo ongaphelele (isb., 5kW esikhundleni sama-20kW) isikhathi esiningi sokuphila kwawo. I-SiC igcina ukusebenza kahle okuphezulu (94%+) ngisho noma umthwalo ungama-20%, kanti ukusebenza kahle kwe-silicon kuvame ukwehla kakhulu kuye kuma-80 aphansi noma ama-70 aphezulu emazingeni aphansi amandla.

4.5 Umthelela Wokujikeleza Kwe-Thermal Esikhathini Sokuphila

Amashaja asezindaweni zokuhlala abhekene nezimo ezinzima—amagalaji abandayo ebusika kanye nalawo ashisa kakhulu ehlobo. Ama-semiconductor e-silicon azwela kakhulu ekushintsheni “kwezinga lokushisa lokuhlangana”. Njalo lapho ishaja ye-silicon iqala, izingxenye zangaphakathi ziyanda futhi zinciphe. Emijikelezweni eyizinkulungwane, lokhu kuholela ekukhathaleni kwe-solder kanye nokwehluleka kwe-wire-bond. Igebe elikhulu le-SiC kanye nokuqhuba okuphezulu kokushisa kusho ukuthi izinga lokushisa langaphakathi lihlala lizinzile kakhulu, okwandisa kakhulu i-MTBF (Mean Time Between Failures) yedivayisi kusukela eminyakeni emi-5 ephakathi embonini kuya eminyakeni engaphezu kwengu-12.

Isahluko 5: Amashaja e-Wallbox DC njengeSango eliya ku-V2H (Imoto eya ekhaya) kanye ne-V2G (Imoto eya kugridi)

Mhlawumbe isizathu esibaluleke kakhulu sokutshala imali ebhokisini lodonga le-DC yindima yalo njengokuvumela ukugeleza kwamandla okuya ohlangothini lwesibili. Nakuba kunezinye izinhlelo ze-AC eziya ohlangothini lwesibili, zinqunyelwe ngokwemvelo yihadiwe yangaphakathi yemoto. Ukushaja okuya ohlangothini lwesibili okuhlanganiswe yi-DC kuyindinganiso yegolide yokuqina kwamandla.

5.1 Imoto Njengebhethri Lendawo Yokuhlala (V2H)

Ibhethri le-EV lesimanje livame ukuphatha amandla aphakathi kuka-60kWh no-100kWh. Lokhu kwanele ukunika amandla umndeni ojwayelekile izinsuku ezintathu kuya kwezinhlanu. Kodwa-ke, ukuze usebenzise la mandla ukunika amandla ikhaya lakho ngesikhathi sokucima kogesi, udinga indlela yokukhipha amandla e-DC ebhethrini bese uyiguqula ibe yi-AC yezifunda zekhaya lakho. Ibhokisi lodonga le-DC lisebenza njengaleli sango. Ngenxa yokuthi lidlula i-OBC, lingadonsa amandla ngqo kusuka ebhethrini, liwaguqule abe yi-240V AC, bese liwafaka ephaneli kagesi yekhaya (ngeswishi yokudlulisa). Lokhu kuguqula i-EV ibe “i-Powerwall” enkulu, yeselula, enikeza amandla amaningi kakhulu kunebhethri lasekhaya elizimele ngezindleko eziphansi.

5.2 Ukuzinza Kwegridi kanye Nemali Engenayo (V2G)

I-Vehicle-to-Grid (V2G) ithatha lesi sinyathelo esiqhubekayo. Esimweni se-V2G, ibhokisi lodonga le-DC lixhumana nomhlinzeki wosizo. Ngesikhathi sokufunwa okukhulu, igridi "ingaboleka" amandla amancane avela ezinkulungwaneni zama-EV apakiwe. Umnikazi wendlu ngokuvamile ukhokhelwa ngale nsizakalo, okwehlisa ngempumelelo izindleko zakhe zobunikazi. Amabhokisi lodonga le-DC angcono kune-V2G ngoba anikeza izikhathi zokuphendula ezisheshayo kanye namandla aphezulu. Uma igridi idinga ukujova okungazelelwe okungu-20kW ukuvimbela ukufiphala, ibhokisi lodonga le-DC lingakunikeza ngokushesha, kanti i-AC OBC ejwayelekile ingase ikhawulelwe ku-7kW futhi ingase ingasekeli ngisho nokugeleza okuqondile.

5.3 Izitshalo Zikagesi Ezibonakalayo (i-VPP)

Amashaja e-DC avumela abanikazi bezindlu ukuthi bajoyine i-Virtual Power Plants. Ngokuhlanganisa amakhulu ezindlu ezixhunywe yi-DC, umphathi we-VPP anganikeza amandla amakhulu emakethe yamandla athengiswa ngobuningi. Lokhu kudala "umnotho wamandla" omusha emkhakheni wezindlu zokuhlala, lapho i-EV iyimpahla esebenzayo kunokuba yizindleko ezingasebenzi.

5.4 Isu Lokulondoloza “Isimo Secala” (SoC)

Esinye sezici eziyinkimbinkimbi zezinhlelo ze-DC V2G yikhono lokuphatha impilo yebhethri ngenkathi isekela igridi. Ngokungafani nezinhlelo ezisekelwe ku-AC ezingase “zishaye” ibhethri ngemijikelezo engajulile nengasebenzi kahle, ibhokisi lodonga le-DC lingenza “ukukhipha ngokunemba.” Lingakhipha inani lamandla eliceliwe yigridi ngenkathi liqinisekisa ukuthi ibhethri aliweli ngaphansi komkhawulo ochazwe ngumsebenzisi (isb., 20% SoC), futhi likwenza lokho ngesilinganiso sokukhipha esifanele esinciphisa ukushisa kokumelana kwangaphakathi.

Isahluko 6: Ukuhlanganiswa Okujulile Nezinhlelo Zokuphathwa Kwamandla Ekhaya (i-HEMS) kanye Nezinto Ezivuselelekayo

Ishaja ye-Wallbox DC akuyona into esetshenziswayo eyedwa; iyi-node ebalulekile ku-“Smart Home of 2030.” Uma ihlanganiswe ne-Home Energy Management System (HEMS), i-DC wallbox iba ngumdidiyeli oyinhloko webhalansi yamandla omndeni.

6.1 Umqondo “we-DC Bus”

Izindlu ezingamelana nesikhathi esizayo ziya ngokuya ekwakhiweni kwe-DC-primary. Amaphaneli elanga akhiqiza i-DC. Amabhethri asekhaya agcina i-DC. Ama-EV asebenzisa i-DC. Ekhaya le-AC lendabuko, amandla aguqulwa emuva naphambili (DC -> AC -> DC -> AC), ngokulahlekelwa okungu-3-5% kuzo zonke izinyathelo. Ibhokisi lodonga le-DC livumela ukuhlanganiswa okuqondile. Amandla e-DC akhiqizwa yilanga angadluliselwa ngqo ebhethri le-EV ngaphandle kokudlula ku-inverter ye-AC. Lokhu kushaja kwelanga "okuqondile kuya ku-EV" kuyisiqongo sokusebenza kahle, okuqinisekisa ukuthi yonke i-photon ethathwe uphahla isetshenziselwa ukuhamba.

6.2 Ukulinganisa Imithwalo Okuhlakaniphile

Isofthiwe ye-HEMS ingasebenzisa ibhokisi lodonga le-DC ukulinganisela umthwalo ophelele wendlu. Isibonelo, uma uhlelo lwe-HVAC luqala futhi lusongela ukudlula umkhawulo wesidingo esiphezulu sendlu, i-HEMS ingalishintsha ngokushesha ibhokisi lodonga le-DC lisuke ku-20kW liye ku-10kW. Ngenxa yokuthi ukushaja kwe-DC kulawulwa ngedijithali futhi kugwema ukubambezeleka kwangaphakathi kwemoto, lokhu kulungiswa kwenzeka ngama-millisecond, okuqinisekisa ukuthi i-breaker eyinhloko yendlu ayikhubeki.

6.3 Ukuhlaziya Okubikezelayo kanye Nokuziphatha Komsebenzisi

I-HEMS ehlanganisiwe ingahlaziya izibikezelo zesimo sezulu, amanani ezinsizakusebenza, kanye nekhalenda lomsebenzisi. Uma uhlelo lukwazi ukuthi unohambo olude kusasa futhi ilanga lizokhanya namuhla, luzobeka phambili ukushaja kwelanga kwe-DC ntambama. Uma lubona amanani aphezulu ezinsizakusebenza kusihlwa, luzosebenzisa ibhokisi lodonga le-DC ukudonsa amandla emotweni ukuze lusebenzise umshini wokuwasha izitsha nezibani (V2H), bese lushaja imoto ngo-3:00 AM lapho amanani ephansi kakhulu.

6.4 Imiphumela Yezinqola Ezihlanganisiwe Eziyunithi Zemindeni Eminingi

Ezindlini zokuhlala noma ezindlini zokunethezeka, amabhokisi odonga e-DC angaxhunywa ukuze kudalwe "igridi encane." Esikhundleni sokuthi yonke ifulethi ibe nokuxhumeka kwegridi okuzinikele okungama-90% okungasebenzi, ibhasi le-DC eliphakathi lingabelana ngamandla phakathi kwezimoto. Uma imoto eyodwa ishajwe ngokugcwele, isabelo sayo somthamo we-DC sidluliselwa ngokushesha emotweni esanda kufika. Lokhu "kwabelana ngomthamo oguqukayo" kungenzeka kuphela ngokuxhumana okusheshayo nokulawula okutholakala ezinhlelweni ze-DC.

Isahluko 7: Ubunjiniyela Bomzimba – Ukufakwa, Ukuthuthukiswa Kwesikhala, kanye Nokuphathwa Kokushisa

Ukushintsha kokushaja kwe-DC enamandla amakhulu kusuka ezindaweni zokuthengisa zezimboni kuya emagaraji okuhlala kwakudinga umsebenzi wobuciko wobunjiniyela bezinto ezibonakalayo. Nakuba ishaja esheshayo ye-DC yomphakathi ivame ukuba usayizi womshini omkhulu wokuthengisa, ibhokisi lodonga le-DC lokuhlala kumele libe lincane, lijabulise ngobuhle, futhi lithule. Ukufeza lokhu kwakudinga izinto ezintsha ezindaweni eziningana ezibalulekile.

7.1 I-Topology Yokuguqulwa Kwamandla: I-Resonant Converter

Ukuze kufinyelelwe ubuningi bamandla aphezulu, amabhokisi odonga e-DC asekhaya avame ukusebenzisa ama-converter e-LLC resonant noma ama-topology e-Phase-Shifted Full Bridge (PSFB). Lawa masekethe avumela i-“Soft Switching,” lapho ama-semiconductor evula futhi evala khona ku-zero voltage (ZVS) noma ku-zero current (ZCS). Lokhu kunciphisa kakhulu i-EMI (Electromagnetic Interference)—okubalulekile ezindaweni zasekhaya lapho kukhona khona i-Wi-Fi ebucayi namadivayisi ahlakaniphile asekhaya—futhi kunciphisa usayizi wezihlungi zangaphakathi nama-heat sink.

7.2 Ukuphathwa Kokushisa: Ngale Kwefeni

Endaweni yokuhlala, umsindo uyinkinga enkulu. Ishaja engu-20kW enefeni yezimboni enamandla ayisamukeleki egaraji elixhunywe ekamelweni lokulala. Onjiniyela basebenzise amasu amaningana okulawula ukushisa buthule:

• Ama-Magnetic Ahlanganisiwe:Izingxenye ezifana nama-inductor zifakwa ezitsheni zama-resin aqhuba ukushisa adonsela ukushisa ekhava elingaphandle.
• Izishintshi Zokushisa Ezisuka Kuketshezi Kuya Kumoya:Amanye amabhokisi odonga e-DC aphezulu asebenzisa iluphu encane, ethule yoketshezi (efana ne-PC yokudlala) ukuhambisa ukushisa kusuka kumamojula e-SiC kuya ku-chassis ye-aluminium enkulu esebenza njenge-radiator engasebenzi.
• Izinto Zokushintsha Isigaba (i-PCM):Amayunithi athuthukile asebenzisa ama-PCM ukuze amunce ukushisa ngesikhathi sokuqhuma okufushane, okunamandla aphezulu bese ekukhulula kancane kancane ngokuhamba kwesikhathi, okuvumela amandla aphezulu ngaphandle kokupholisa okusebenzayo.

7.3 Ukwakhiwa Kokufakwa: Uhlelo “Lokwehlukana”

Ukuze banqobe isisindo somzimba sehadiwe yokuguqulwa engu-20kW+ hardware, abanye abakhiqizi bathuthela ekwakhiweni okuhlukanisiwe. Imojula yamandla anzima ifakwa ekhabetheni elingaphansi noma elisetshenziswayo, kuyilapho "iyunithi yekhanda" encane, enobungani nomklami (equkethe isikrini nekhebula) ifakwe egaraji. Lokhu kwenza kube lula ukufaka, njengoba umsebenzi kagesi wenziwa eduze kwephaneli eyinhloko, futhi izintambo ze-DC ezinamandla aphezulu kuphela ezidinga ukuthuthwa ziye endaweni yokupaka.

7.4 Izidingo Zokuxhumeka Kwegridi

Ukufaka ibhokisi lodonga le-DC kuyinkimbinkimbi kakhulu kuneyunithi ejwayelekile ye-AC. Ngokuvamile kudinga uxhumano oluzinikele lwezigaba ezintathu (eYurophu) noma isekethe yesigaba esihlukanisiwe esingu-240V esiphezulu (eNyakatho Melika).

• Ukulinganisela Umthwalo Ephanelini:Amayunithi amaningi manje afaka “ama-CT clamps” (ama-Current Transformers) aqapha ukusetshenziswa kwendlu okuphelele. Uma umninikhaya evula i-sauna noma i-oven kagesi, ibhokisi lodonga le-DC liyazicindezela ngokushesha ukuze livimbele i-fuse eyinhloko ukuthi ingavuthi.
• Ama-Transformer Okuzihlukanisa:Amashaja e-DC kumele ahlinzeke ngokuhlukaniswa kwe-galvanic phakathi kwegridi nebhethri yemoto ukuze kuphephe. ​​Ama-transformer esimanje asebenzisa imvamisa ephezulu athathe indawo yama-transformer asindayo angu-50/60Hz, anciphisa isisindo kusuka ku-50kg kuya ngaphansi kuka-5kg.

7.5 Ubunjiniyela Bekhebula kanye Ne-Ergonomics

Izintambo ze-DC zijiyile kakhulu futhi zinzima kunezintambo ze-AC ngoba kumele zithwale ugesi ophezulu kakhulu (ngokuvamile kufika ku-80A noma ku-100A). Lokhu kuletha inselele ehlelekile. Onjiniyela bathuthukise “izintambo ezipholile ngoketshezi” (ngisho nezokusetshenziswa ekhaya) ezisebenzisa ungqimba oluncane loketshezi lokupholisa ukuze kuvunyelwe ingxenye encane kakhulu yethusi. Lokhu kwenza ikhebula liguquguquke futhi libe lula njengekhebula le-AC elijwayelekile, okuthuthukisa kakhulu ulwazi lomsebenzisi kubantu abadala noma labo abanokuhamba okulinganiselwe.

Isahluko 8: Ukuhlaziywa Kwezomnotho – I-Cost-Benefit Curve kanye Nezindleko Zobunikazi Eziphelele (TCO)

Isithiyo esiyinhloko sokwamukelwa kokushaja kwekhaya le-DC bekulokhu kuyi-"Sticker Price." Ibhokisi lodonga le-AC elisezingeni eliphezulu libiza u-$500–$1,000, kanti ibhokisi lodonga le-DC lingabiza u-$4,000–$10,000. Kodwa-ke, ukugxila okuncane entengweni yokuthenga akunaki izinzuzo ezijulile zeTotal Cost of Ownership (TCO).

8.1 “Izindleko Ezigwenyiwe” Zokugcina Izinto Ezingashintshi

Uma umninikhaya ecabangela kokubili i-EV kanye nebhethri lasekhaya (njenge-Tesla Powerwall), izibalo zezomnotho ziyashintsha. I-Powerwall engu-13.5kWh ibiza cishe u-$10,000. Ngokukhetha ibhokisi lodonga le-DC eliqondisa kabili, umninikhaya angasebenzisa ibhethri elingu-80kWh elivele likhona ku-EV yakhe. "Izindleko nge-kWh" zesitoreji ngebhokisi lodonga le-DC empeleni zingu-zero (njengoba usuvele uthenge imoto), uma kuqhathaniswa no-$700/kWh wesitoreji esingashintshi. Ekhaya elidinga umthamo omkhulu wokusekela, ibhokisi lodonga le-DC empeleni liyi-eshibhileindlela eya ekuzimeleni kwamandla.

8.2 Ukonga Kokusebenzisa Amandla Ngendlela Efanele

Inzuzo yokusebenza kahle engu-5% kuya ku-8% yokushaja kwe-DC-to-DC (ngelanga kuya ku-EV) iyanda. Ngaphezu kwamamayela ayi-100,000 okushayela, i-EV izosebenzisa cishe ama-kWh angu-33,000. Inzuzo yokusebenza kahle engu-5% isindisa ama-kWh angu-1,650. Ku-$0.25/kWh, lokho kungu-$412 ekongeni okuqondile. Eminyakeni engu-15 yokuphila kweshaja, inzuzo yokusebenza kahle iyodwa ingakhokhela iprimiyamu yentengo ngaphezu kweyunithi ye-AC eshibhile.

8.3 Ukukhiqizwa Kwemali Engenayo nge-V2G

Ezindaweni ezinezinhlelo ze-V2G ezisebenzayo, ibhokisi lodonga le-DC lingakhiqiza imali engenayo. I-California namazwe amaningana aseYurophu azama izinhlelo ezikhokhela abasebenzisi u-$0.50 kuya ku-$1.00 nge-kWh ukuze bathole ukwesekwa kwegridi "ephuthumayo". Uma umshayeli enikeza ukwesekwa okungu-10kWh izikhathi ezingu-50 ngonyaka, angathola u-$500 ngonyaka. Kuhlanganiswe nezikhuthazo zempendulo yesidingo, ibhokisi lodonga le-DC lishintsha lisuka esikhungweni sezindleko liye empahleni ekhiqiza imali engenayo.

8.4 Ukuhlaziywa Kokuzwela: Umthelela Wamanani Kagesi

I-ROI yebhokisi lodonga le-DC ibucayi kakhulu ekusabalaleni phakathi kwamanani kagesi aphezulu nangaphandle kwesikhathi esiphezulu. Ezimakethe ezinamanani “esikhathi sokusetshenziswa” (ToU) lapho ukusabalala kungu-$0.30/kWh noma ngaphezulu, isikhathi sokukhokha sebhokisi lodonga le-DC elingu-$5,000 (kufaka phakathi ukufakwa) singaba mfushane njengeminyaka engu-4 kuya kwengu-6 uma kubhekwa ukonga kwe-V2H kanye nokwenza ngcono amandla elanga. Ezimakethe ezinamanani aphansi, isikhathi sokukhokha siyaqhubeka, okwenza idivayisi ibe “ukuthenga okunethezekile nokukhuthazela” kunokuba ibe ngezezimali kuphela.

8.5 Ukugcinwa kanye Nenani Lensalela

Amabhokisi odonga e-AC endabuko avame ukuphathwa njengezinto ezilahlwayo. Ngokuphambene nalokho, amabhokisi odonga e-DC akhiwe ngokwezindinganiso zezimboni. Inani lawo elisele emakethe yesibili cishe lizohlala liphezulu, njenge-inverters yelanga ephezulu. Ngaphezu kwalokho, njengoba izindlu zihlolwa ngokuya ngokuya ngokusekelwe ku-"Energy IQ" yazo, ibhokisi lodonga le-DC elifakwe ngaphambilini lingafaka isandla enanini lokuthengiswa kabusha kwempahla elingu-2% kuya ku-5%.

Isahluko 9: Ukunethezeka kanye Nenani Lomkhiqizo - Kungani Izimakethe Zezindlu Ezisezingeni Eliphezulu Zikhetha i-DC

Emkhakheni wezindlu zikanokusho kanye nezimoto ezisezingeni eliphezulu, i-“Wallbox DC” isibe uphawu lwesikhundla, njengekhishi elisezingeni lobuchwepheshe noma indawo yokudlala yasekhaya. Imelela ukuzibophezela kwezobuchwepheshe, ukusebenza, kanye nokuphathwa kwemvelo.

9.1 Impikiswano ethi “Isikhathi Kuphela Okunethezekayo”

Kumnikazi wemoto ye-EV esebenza kahle njengePorsche Taycan noma iLucid Air, ukulinda amahora ayi-10 ukuze ishajwe ngokugcwele kuyisiphazamiso. Ibhokisi lodonga le-DC elinganikeza "ukugcwalisa" emahoreni angu-1.5 lifana nendlela yokuphila yomuntu onenzuzo ephezulu. Ukulula kokukwazi ukubuyela ekhaya ohambweni lwegalofu lwasekuseni futhi ube nemoto egcwele ishaje ilungele umhlangano wantambama kuyisiphakamiso senani esidlula izibalo zikagesi ezilula.

9.2 Ukuhlanganiswa Nokuklama Kobuhle

Amabhokisi odonga e-DC asezingeni eliphezulu (avela kumikhiqizo efana ne-Wallbox, i-Delta, noma i-ABB) aklanyelwe ukuhambisana nokwakhiwa kwezakhiwo okusezingeni eliphezulu. Izici zifaka:

• Izinto Zokusebenza Eziphezulu:I-aluminium ebhulashiwe, ingilazi eqinisiwe, kanye ne-carbon fiber.
• Ukuphathwa Kwekhebula Elifihliwe:Ama-retractor ekhebula anenjini noma izinhlelo "zokufaka nokulahla" ezigcina phansi kwegaraji kuhlanzekile.
• Ukukhanya kwe-Biometric kanye ne-Smart:Amashaja aqaphela umsebenzisi ngefoni noma ngeminwe yakhe futhi anikeza ukukhanya okuzungezile okubonisa isimo sokushaja ngokushesha.

9.3 Ukwazisa Izindlu Nezindawo

Abathuthukisi abacabanga kusengaphambili bakha izindlu ezithi “Net Zero Luxury”. Ikhaya elifakwe kusengaphambili ishaja ye-DC engu-20kW eqondiswa yizinhlangothi ezimbili limakethwa ngokuthi “V2H Ready.” Emakethe ekhathazeka kakhulu ngokungazinzi kwegridi kanye nokushintsha kwesimo sezulu, lesi sici sinikeza inzuzo yokuncintisana ngenani lokuthengisa kabusha, siheha abathengi abanolwazi ngobuchwepheshe ababheka ishaja ye-AC ejwayelekile “njengochwepheshe wefa.”

9.4 Okuhlangenwe nakho "Kwe-Flagship" Kwabenzi Bezimoto

Abakhiqizi bezimoto be-premium basebenzisana nabakhiqizi be-DC charger ukuze banikeze izixazululo zokushaja ekhaya ezinophawu. Uma ikhasimende lithenga i-EV engu-$150,000, umenzi wezimoto ufuna ukuqinisekisa ukuthi ulwazi lokushaja luhambisana nolwazi lokushayela. Ibhokisi lodonga le-DC elinophawu linikeza "i-ecosystem" ehlangene eyakha ukwethembeka komkhiqizo futhi inciphise "ukukhathazeka okuhlukahlukene" ngokunikeza impumuzo "yokukhathazeka ngesivinini".

9.5 Inani Lengqondo Lokuthi “Akukho Ukulinda”

Ngale kwejubane elingokomzimba, kukhona ushintsho olukhulu ngokwengqondo endleleni umninikhaya abheka ngayo imoto yakhe uma enebhokisi lodonga le-DC. Ngeshaja ejwayelekile ye-AC, imoto ivame ukubhekwa “njengebuthakathaka”—idivayisi edinga ukunakekelwa okuqhubekayo, okuhamba kancane. Ngeshaja ye-DC engu-25kW, imoto ibhekwa “njengetholakalayo.” Lokhu kunciphisa umthwalo wokuqonda wobunikazi be-EV, kususa isidingo sokuhlela ngokucophelela imisebenzi nohambo. Kumthengi wokunethezeka, lokhu kucaca kwengqondo kuvame ukuba yisici esibaluleke kakhulu sohlelo lonke.

Isahluko 10: Isimo Sokulawula kanye Nekusasa Lezindinganiso Zokushaja Ezihlakaniphile

Njengoba ubuchwepheshe bokushaja kwe-DC yokuhlala bukhula, indawo yokulawula ibhekene nobunzima bokuhambisana nesivinini. Ukuguquka kusuka ekushajeni "okuyisiwula" kuya ekusebenzisaneni kwe-DC okuqondiswa yizinhlangothi ezimbili kudinga isethi yemithetho ehambisanayo ehilela amazinga ezimoto, amakhodi kagesi, kanye nezinqubo zokuxhumana zezinsiza.

10.1 Izinga le-ISO 15118-20: Ulimi Olujwayelekile

Intuthuko ebaluleke kakhulu endaweni yokushaja indinganiso ye-ISO 15118-20, evame ukubizwa ngokuthi “i-Plug & Charge” ngokusekelwa okuqondiswayo okubili. Le protocol ivumela lokhu okulandelayo:

• Ukuqinisekiswa Okuzenzakalelayo:Imoto iziveza ebhokisini lodonga le-DC ngokushesha nje lapho ixhunyiwe, okususa isidingo sezinhlelo zokusebenza noma amakhadi e-RFID.
• Ukuphathwa Komthwalo Oguquguqukayo:Ukuxhumana okuningiliziwe ngesimo sebhethri, izinga lokushisa, kanye nezidingo zokushaja.
• Ukusekelwa kwe-Bi-directional:Indinganiso ibhala ngokusemthethweni ukuxhawulana okudingekayo ku-V2H kanye ne-V2G, okuqinisekisa ukuthi i-Ford EV ingakhuluma neshaja ye-Wallbox kanye ne-interface yegridi ye-Siemens ngaphandle kwezinkinga zokuhambisana.

10.2 Ukuthuthukiswa Kwekhodi Kagesi: I-NEC kanye ne-IEC

Amakhodi kagesi kazwelonke nawamazwe ngamazwe ayabuyekezwa ukuze afake “ama-DC Microgrids.”

• I-athikili ye-NEC 706 (Izinhlelo Zokugcina Amandla):E-United States, i-National Electrical Code manje inikeza iziqondiso ezicacile zendlela yokuphatha i-EV njengohlelo lokugcina izinto. Lokhu kufaka phakathi izidingo zokuvala ngokushesha kanye nokufaka isisekelo, okuqinile kakhulu ezinhlelweni ze-DC kunezinhlelo ze-AC.
• Ukuxhumana Kokuphepha:Amabhokisi odonga e-DC adinga ukutholwa kokuvuza komhlaba okuyinkimbinkimbi kanye nokuvikelwa kwe-arc-flash. Ngenxa yokuthi ama-DC arc awanayo "i-zero-crossing" njenge-AC, kunzima ukuwacisha. Amashaja e-DC anamuhla afaka phakathi ukuxhumeka kwe-elekthronikhi kanye nokwemishini ukuqinisekisa ukuphepha kwendlu.

10.3 Ukuxhumana Kwezinsiza kanye Nokulinganisa Okune-Net

Izinsizakusebenza ziyisango lokugcina. Ukuze umninikhaya asebenzise i-V2G, izinsizakusebenza kumele zivume "isivumelwano sokuxhumana."

• I-IEEE 1547:Le ndinganiso ilawula indlela izinsiza zamandla ezisatshalaliswe ngayo (njenge-EV exhunywe yi-DC) ezingaxhuma ngayo kugridi. Iqinisekisa ukuthi uma igridi iwa, i-EV iyayeka ukunikeza amandla emuva emigqeni ukuze ivikele abasebenzi bezinsiza (abalwa nokukhukhuleka kweziqhingi).
• Ukuqamba Okusha Kwezinkokhelo:Sibona ukwanda “kwentengo yesikhathi sangempela” (RTP). Kulo modeli, ibhokisi lodonga le-DC liyithuluzi lezezimali, lithenga amandla ngamanani aphansi (avamile ezindaweni ezinomoya omningi) futhi liwathengise ngesikhathi sokucindezeleka okukhulu.

Isahluko 11: Izimo Zokusebenza - Izifundo Zecala Lomhlaba Wangempela

Ukuze sisekele le mibono yobuchwepheshe eqinisweni, ake sihlole izimo ezintathu ezihlukile zokusetshenziswa lapho amabhokisi odonga e-DC enikeza khona inani lokuguqula.

Isifundo Sendaba A: Ikhaya Lasehlane Elizimele Ngelanga (e-Arizona, e-USA)

Ukusethwa:Ikhaya elingamamitha-skwele angu-4,000 eline-solar yophahla engu-15kW, ibhokisi lodonga elingu-20kW DC, kanye ne-100kWh EV.Inkinga:Le nkampani yasendaweni inezindleko eziphezulu "zokufunwa" kanye nesikweletu esiphansi sokuthumela ngaphandle kwe-solar.Isixazululo se-DC:Umnikazi wendlu usebenzisa ibhokisi lodonga le-DC ukushaja i-EV ngqo kusuka kumaphaneli elanga ku-15kW DC. Ngokugwema ukulahlekelwa ukuguqulwa kwe-AC-DC kanye "nomuntu ophakathi" wesevisi, ikhaya lifinyelela ku-95% wokusetshenziswa kwelanga. Ngesikhathi sokushisa okukhulu kusihlwa (4 PM - 8 PM), ibhokisi lodonga le-DC linikeza ukwesekwa kwe-V2H okungu-8kW, linika amandla amaphampu e-AC kanye ne-pool. Lokhu kuqeda isidingo sohlelo lwebhethri elingashintshi olubiza u-$20,000, okusindisa umnini wendlu imali eningi ngenkathi eqinisekisa ukuthi imoto yakhe isilungele uhambo lwasekuseni.

Isifundo Sendaba B: Indlu Yokuhlala Enezindlu Eziningi Ezinhle Kakhulu (eLondon, e-UK)

Ukusethwa:Ifulethi elisezingeni eliphezulu elinezindawo zokupaka eziyi-10, ngalinye lifakwe ikhabethe lamandla elihlanganyelwe elingu-50kW DC kanye “namayunithi ekhanda” ngamanye.Inkinga:Ukunikezwa kukagesi okuphelele kwesakhiwo kulinganiselwe. Ukufaka amashaja e-AC angu-10 x 22kW kuzodinga ukuthuthukiswa kwesiteshi esincane esikhulu, esibiza izigidi zamaRandi.Isixazululo se-DC:Isakhiwo sisebenzisa ichibi lamandla le-DC eliphakathi nendawo. Esikhundleni samayunithi e-AC ayi-10 ahlukene, uhlelo lunikeza amandla e-DC angu-50kW kunoma yiziphi izimoto eziwadinga kakhulu. Ngenxa yokuthi ukushaja kwe-DC kulawulwa ngedijithali futhi kusebenza kahle kakhulu, isakhiwo singasekela ama-EV ayi-10 ku-utility feed ekhona. Izakhamuzi zijabulela ulwazi "lwe-concierge" lwesivinini sokushaja esingu-25kW, okuyinto engenakwenzeka ngengqalasizinda ejwayelekile yokwakha i-AC.

Isifundo Sendaba C: “Ukuphunyuka” Okukude Ngaphandle Kwegridi (Izindawo Eziphakeme ZaseScotland)

Ukusethwa:Indawo yokuhlala ekude esebenza nge-turbine encane ephehla ugesi kanye nejeneretha yomoya encane.Inkinga:I-micro-grid ibuthakathaka futhi ayikwazi ukusingatha "ugesi ongenayo" wezinhlelo zokushaja ze-AC zendabuko.Isixazululo se-DC:Ibhokisi lodonga le-DC lisebenza njenge-buffer eyinkimbinkimbi. Lidonsa umfudlana we-DC ozinzile, ophansi ovela ohlelweni lwe-hydro/wind uye ebhethrini elincane le-buffer, bese "liqhumisa" lawo mandla ku-EV ku-20kW DC uma kudingeka. Ukulawulwa okunembile kweshaja ye-DC kuvimbela i-micro-grid ukuthi ingawi, okuvumela ubunikazi be-EV emagumbini akude kakhulu eplanethi.

Isahluko 12: Izinselele Zobuchwepheshe Namasu Okunciphisa Izinkinga

Nakuba izinzuzo zinkulu, indlela eya ekukhokhisweni kwe-DC yokuhlala yonke ayiyona engenazithiyo. Ukubhekana nalezi zinselele kugxile kakhulu ku-R&D yamanje kulo mkhakha.

12.1 Umsindo Ovame ​​Kakhulu Nokuhambisana Kwama-Electromagnetic (EMC)

Ukusebenzisa i-converter ye-SiC engu-20kW ku-200kHz egalaji yokuhlala kungadala umsindo omkhulu we-electromagnetic. Uma ungavikelwe kahle, lo msindo ungaphazamisa i-Wi-Fi yasekhaya, amasignali eselula, ngisho ne-sensor suite yemoto.Ukunciphisa:Abakhiqizi abahamba phambili basebenzisa izihlungi ze-EMI zezigaba eziningi kanye nokushintshana kwe-"spread-spectrum". Ngokushintsha kancane imvamisa yokushintsha kunokuba uhlale endaweni eyodwa eqinile, "umsindo" usakazeka ebhendini ebanzi, kunciphisa ukuphazamiseka kwe-peak kuya emazingeni ahambisana nezindinganiso eziqinile ze-FCC zokuhlala kanye ne-CE.

12.2 Ama-Harmonics eGridi kanye nekhwalithi yamandla

Amashaja amakhulu e-DC angabuyisela "ama-harmoniki" kuphaneli kagesi. Lokhu kungukuhlanekezelwa kwegagasi elihlanzekile le-sine elinikezwa yi-utility. Ukuhlanekezelwa okuphezulu kwe-harmonic kungabangela ukuthi ezinye izinjini (njengalezo eziseziqandisini noma emishinini yokuwasha) zishise kakhulu futhi zingasebenzi ngaphambi kwesikhathi.Ukunciphisa:Amabhokisi odonga e-DC asebenzisa amasekethe e-Active Power Factor Correction (APFC). Lawa masekethe aqinisekisa ukuthi ugesi odonswa kugridi usesigabeni esifanele kanye nogesi, egcina "i-Power Factor" engu->0.99 futhi egcina ukuphambuka okuphelele kwe-harmonic yendlu (TTHD) ngaphansi kwemingcele echazwe yi-IEEE 519 kanye ne-IEC 61000-3-2. Njengoba i-power factor ingaphezu kuka-0.99 kanye ne-THD ngokuvamile ingaphansi kuka-5% uma ilayishwa ngokugcwele, ibhokisi lodonga le-SiC lesimanje empeleni liyintuthuko efanelekile yekhwalithi yamandla asekhaya: i-front end ye-APFC ilungisa ukudonsa kwamanje ngendlela enembile kangangokuthi izinto ezixhunyiwe zibona isimo segagasi esihlanzekile kunalezo ezitholakala kuma-electronic amaningi asekhaya.

12.3 Ukuphathwa Kokushisa Endlini Yokuhlala

Ibhokisi lodonga elingu-20kW DC ligxilisa ukushisa okukhulu ngendlela eklanyelwe ukuhlala egaraji. Inzuzo yokusebenza kahle kwe-SiC ibalulekile lapha. Ngokusebenza kahle okungu-97-98%, iyunithi engu-20kW ikhipha ukushisa okungu-400-600W — uma kuqhathaniswa no-1,000W noma ngaphezulu ukuze kuklanywe ngendlela efanayo esekelwe ku-silicon. Lowo mehluko uvumela ibhokisi lodonga ukuthi lisebenzise ukupholisa okuvalekile, okungenamoya ezindaweni eziningi, okususa iphuzu elivame kakhulu lokwehluleka kwihadiwe yokushaja: amafeni avale uthuli nomsindo wawo ohambisana nawo.

Uma kufakwa emagaraji angenawo umoya, imvilophu yokushisa ibalulekile. Isigaba samandla seshaja siyawohloka kahle: njengoba izinga lokushisa elizungezile likhuphuka ngaphezu kuka-40°C (104°F), iyunithi inciphisa ngokuzenzakalelayo amandla okukhiphayo ngokunyuka okubushelelezi, ivikela izingxenye zangaphakathi ngenkathi iqhubeka nokushaja imoto ngesivinini esincishisiwe. Umshayeli uhlala azi isimo samanje ngohlelo lokusebenza oluhambisanayo, olubika kokubili amandla okushaja kanye negumbi lokushisa.

12.4 Ukuphepha, Isitifiketi, kanye Nokubuka Ikhaya Lonke

Ukushaja kwe-DC yokuhlala kudinga ukuqina kokuphepha okufanayo nemishini yokusetshenziswa. Ibhokisi lodonga lifaka phakathi ukuvikelwa kwephutha lomhlabathi, ukutholwa kwephutha le-arc, kanye ne-"Type B" RCD (idivayisi yamanje eseleyo) ekwazi ukubona imisinga yokuvuza ye-DC engatholakali yi-RCD ye-AC kuphela. Ukuvalwa kwezinga lokushisa ngokweqile, ukuvikelwa kwe-reverse-polarity, kanye nama-contactor aphindaphindayo kuqinisekisa ukuthi imodi yokuhluleka okubi kakhulu iyindlela ephephile nelawulwayo yokunqamula - hhayi i-arc engalawulwa.

Okubaluleke kakhulu, ibhokisi lodonga lixhumana nge-OCPP nohlelo lokuphatha amandla lomnikazi wendlu. Uma lihlanganiswe ne-solar yophahla kanye nebhethri lasekhaya, lingashaja imoto kuphela kusuka ku-solar eyengeziwe, lithumele amandla ekhaya (V2H) ngesikhathi samanani aphezulu okusetshenziswa, futhi linciphise umthwalo ngesikhathi sezimo eziphuthumayo zegridi. Umphumela uba yithuluzi lamandla elilodwa, elihlanganisiwe esikhundleni seqoqo lamadivayisi azimele - kanye nekhaya eligcina izibani zalo zikhanya lapho igridi ingakhanyi.

Ukulula kokufakwa kubaluleke kakhulu.Ibhokisi lodonga elizinikele elingu-20kW DC lixhuma kwiphaneli ekhona yendlu nge-breaker eyodwa enezigaba ezintathu noma i-split-phase, futhi imitha yamandla eyakhelwe ngaphakathi yeshaja isusa isidingo sokufakwa kwe-CT-clamp ehlukile ekucushweni okuningi. Kungakhathaliseki ukuthi ifakwe kabusha egaraji eliqediwe noma ichazwe ukwakhiwa okusha, i-form factor encane efakwe odongeni kanye ne-pedestal mount engakhethayo inikeza abanikazi bezindlu kanye nogesi ukuguquguquka - futhi ukufakwa ngakunye kusekelwa yi-CE, UL, kanye nezitifiketi zendawo ezenza ukuvumela kube lula.

Izinto Ezibalulekile Okufanele Uzicabangele

• Iziphetho zangaphambili ze-APFC zibamba amandla angaphezu kuka-0.99 kanye nokuphambuka kwe-harmonic ngaphakathi kwemikhawulo ye-IEEE 519, okuvikela izinto zasekhaya.
• Ukusebenza kahle kwe-SiC kwenza kube lula ukuklama izindlu ezipholile ngaphandle komoya, ezingenawo umoya opholisayo nge-convection enomoya omuhle wokushisa.
• Ama-RCD ohlobo B, ukutholwa kwamaphutha e-arc, kanye nokuphathwa kwamandla okusekelwe ku-OCPP kwenza ibhokisi lodonga libe yithuluzi lasekhaya eliphephile nelinobungani negridi.
• Amandla e-V2H aguqula imoto ibe umthombo wamandla okusekelayo, okunikeza ukuqina kwangempela ngesikhathi sokungasebenzi.

Xhumana ne-MIDA Power

Amashaja e-DC e-wallbox e-MIDA Power — kusukela ku-20kW kuya ku-60kW — aklanyelwe imakethe yezindlu nezindawo zokuhweba ezincane ezinezigaba zamandla ze-SiC, ukulungela i-ISO 15118 Plug & Charge, kanye nokuhambisana okugcwele kwe-OCPP 1.6J/2.0.1. Ukuze uthole amashidi edatha, iziqondiso zokufaka, noma ikhotheshini yephrojekthi yakho, xhumana nethimba lethu lokuthengisa. Onjiniyela bethu bazokusiza ukuthi usayizi we-wallbox efanele umthamo wephaneli yakho, i-solar array, kanye nokucushwa kwebhethri lasekhaya.