Namuhla, abanye eYurophu bakhathazekile ngokukhuphuka kwamanani entengo kagesi, futhi noma ngabe konke ukwesaba okuhlobene nalokhu kunyamalala ngobusuku obubodwa, ngokuqinisekile sizobona ukunyuka kwentengo. Njengomgebengu we-inthanethi, ungabheka kahle amadivayisi alambele amandla ekhaya lakho futhi uthathe isinyathelo ngawo. Ngakho, [uPeter] wafaka amaphaneli elanga ophahleni lwakhe, kodwa akakwazanga ukuthola ukuthi angawaxhuma kanjani ngokusemthethweni kugridi yomphakathi, noma okungenani kumapayipi amakhulu angu-220V endlini yakhe. Yiqiniso, isixazululo esihle ukwakha inethiwekhi ehlukile ye-LVDC efanayo futhi ubeke inqwaba yamadivayisi kuyo!
Ukhethe i-48V ngoba iphakeme ngokwanele, iyasebenza, kulula ukuthola izinto ezifana ne-DC-DC, iphephile uma kuziwa ezindabeni zezomthetho, futhi ngokuvamile ihambisana nokusethwa kwephaneli yakhe yelanga. Kusukela lapho, uye wagcina amadivaysi afana namalaptop, amashaja, nezibani kumareyili kagesi e-DC kunokuba awaxhume ngokuqondile, kanye nengqalasizinda yekhaya lakhe (okuhlanganisa irack egcwele amabhodi e-Raspberry Pi) yaneliseke ngokuphelele ukusebenza 24/7. ujantshi 48V. Kukhona ugesi oyisipele osuka esiphakelini samandla e-AC esivamile uma isimo sezulu siguqubele, futhi uma kwenzeka ukucima kukagesi, amabhethri amakhulu amabili e-LiFePO4 azonika amandla zonke izinto ezixhunyiwe ku-48V kuze kube yizinsuku ezimbili nesigamu.
Idivayisi ikhiqize futhi yadla i-115 kWh ezinyangeni ezimbili zokuqala - umnikelo omkhulu kuphrojekthi ye-hacker yokuzimela kwamandla, futhi okuthunyelwe kwebhulogi kunemininingwane eyanele yazo zonke izidingo zakho zokuphefumula. Le phrojekthi iyisikhumbuzo sokuthi amaphrojekthi kagesi aphansi e-DC ayinketho enhle esikalini sasendaweni - sibone amaphrojekthi okuhlola asebenzayo e-Hackcamp, kodwa ungakwazi futhi ukwakha i-DC UPS encane uma uthanda. Mhlawumbe maduzane sizothola i-outlet yenethiwekhi enjalo.
Iziteshi zamaselula okwamanje zisebenzisa i-48V. Ngidinga ukumisa into efanayo yephrojekthi yokubuka indawo.
Bengicabanga ukusebenzisa amaseva athile e-HP DL360 ekhaya anamaphaneli elanga namabhethri angenawo amandla kagesi angu-48VDC angalingana nalawa maseva futhi agweme ukungasebenzi kahle kwe-inverter ye-DC-to-AC, kodwa ngabe sengibona intengo yalezi zimpahla zikagesi ku-48. I-VDC. … NKULUNKULU WAMI. Buyela ekutshalweni kuze kube ngu-2050!
I-48V bekuyigesi yebhasi ezinhlelweni zokuxhumana kusukela ngesikhathi sika-Strowger (namabhethri amakhulu) futhi yadluliselwa kumpahla yenethiwekhi ye-fiber optic.
Yebo, yonke imboni yezokuxhumana isebenza ku-48VDC. Kusukela ekushintsheni kwe-analog endala kuya eziteshini zesimanje zamaselula. Izikhungo zedatha ye-IT ngokuvamile zinikwa amandla amandla e-AC.
OKUHLE Okuwukuphela kwe-bummer enalokhu kusetha (kucatshangwa ukuthi enye ingxenye igunyaziwe futhi igcinwe endaweni ephephile kude nezilwane ezifuywayo kanye nezingane) ukuthi uma isitoreji sasendaweni samandla sesigcwele, amandla engeziwe ayamoshwa uma usondelene negridi. ama-interconnects ayahamba, cishe kuyihlazo ngempela ukuthi lawo mandla asetshenziswa ezintweni ezishibhile. Angibasoli ngalesi simo, bazenzele umsebenzi futhi abakwazi ukuthola indlela esemthethweni/ephephile/ethengekayo kule ngqinamba yokugcina…abaphathi bakahulumeni cishe baphila kangcono kunabameli nosopolitiki. nakuba zivame ukufana empilweni, mhlawumbe zonke ziyizifunda ezihlukene zendlela yokuphila efanayo...
Ngingathi ukwenza impilo ibe lula kulabo bantu abangewona ubuchwepheshe abane-DC cishe uzohlala nabo noma usekele inketho engcono kakhulu etholakalayo namuhla okungenzeka ukuthi inikwe amandla nge-USB…yize ngikuzonda ngoba ukunikezwa kwamandla nge-USB kuyisiphithiphithi, ukuyithola kahle. kubonakala kuyinkinga enkulu, futhi akunakwenzeka ukuthi isebenze kahle njengojantshi we-48V. Itholakala yonke indawo kangangoba iyaqondakala kubantu abangebona abezobuchwepheshe - ngoba iyaxhumeka futhi iyasebenza (uma icushwe ngendlela efanele). Susa isidingo sokuthola isiguquli esilungile se-DC-DC sayo yonke into noma ugade ngenkuthalo amandla kagesi “aphakela amandla” njalo uma uxhuma idivayisi entsha – ngikwenza lokhu etafuleni lami kodwa angikakathosi lutho...
Kepha njengephakethe lebhethri eshalofini elinokufakwa kokulandela umkhondo welanga, mhlawumbe njenge-inverter yephakethe le-AC okufanele ube nalo, futhi uma ufuna ukugwema ukwakha owakho amandla e-USB acasulayo, ungasebenzisa into yokuxoxisana yamandla e-USB. . Akunzima kakhulu kuwe ukukumisa. Futhi, kungaphezu kokwanele ukuba abaduni phakathi kwethu bafake amaphaneli elanga (okungcono kakhulu ezimpahleni zokulandela ilanga), banikeze iziqapha zesimo, izexwayiso ezinebhethri eliphansi, futhi bahlele kahle izintambo endaweni eyodwa ebaluleke kakhulu yomsebenzi womgunyathi. Kancane…
Isixazululo esihle samandla engeziwe ukulahla imithwalo efana nezingxenye zikagesi ku-heater yamanzi. Uma ibhethri selishajwe ngokugcwele, lingashintshela ekusebenziseni amandla elanga atholakalayo ukushisisa amanzi.
Nakuba isifudumezi samanzi singakwazi futhi "ukugcwalisa" (ukushisa ngokwanele) ngokuhamba kwesikhathi, ngaphandle uma sikhulu kakhulu.
Inzuzo yamandla elanga ukuthi awudingi ukuqoqa amandla elanga. Ungabeka amaphaneli ngokuphepha ngaphansi kwemisebe yelanga ngaphandle kokusebenzisa amandla angaba khona.
Yiqiniso, lokhu kuwukuchitha, futhi uma kuzuzisa wena, ukuphakela amandla kugridi kuyisinqumo sokuqala.
Njengoba iCityZen isho, izogcwala ngokuhamba kwesikhathi, ingenye nje indlela yokugcina amandla. Ingasaphathwa-ke eyokuthi uma usuvele uhlala endaweni eshisayo, i-air conditioner yakho izosebenza kanzima uma unayo, futhi uma kungenjalo, impilo yakho izoba yimbi kakhulu kunalokho obekufanele ibe yikho, ngoba ithangi livalekile nje… isitolo samandla esihle kakhulu, kodwa amakhaya amaningi awawadingi ngempela amanzi ashisayo amaningi kangako, futhi ukusethwa kwethangi elilodwa elikhudlwana kusho ukuthi uma ungenawo amandla amahhala, usenawo amanzi amaningi ongawasebenzisa ngokugcwele. ephakeme yokushisisa ngenxa yendawo enkulu eyibangelayo.
Akukho ngempela "ukulayishwa" okuhle esikalini ngasinye, inethiwekhi enkulu enezitshalo ezinkulu ingakwazi ukusebenzisa amashifu ambalwa angeziwe futhi yandise ukukhiqizwa okungaphezu kwesidingo ukuze isebenzise ngokugcwele amandla "amahhala". Kodwa ngokwami, kuyizaba nje zokudlala phezulu nedwala 24/7, ukusebenzisa amandla ngokunganaki ngenkathi kuqhubeka noma kuze kube yilapho umakhelwane ekubulala.
Kodwa-ke, esimweni sezulu esishisayo noma esishisayo, ukupholisa ukumuncwa kungasiza ukusebenzisa ukushisa okweqile ukupholisa amafulethi.
Ungakwazi futhi ukusebenzisa i-air conditioner yegumbi elincane eline-inverter uma unamandla amaningi okucisha futhi kushisa. Mhlawumbe i-inverter ingaphandle… Kungajabulisa kakhulu ukubona ukuthi ungakwazi yini ukwenza iphampu yokushisa esebenzisa umoya ongaphandle njengomthombo wokushisa/i-radiator. Impela, akusebenzi kahle, kepha uma inkinga yakho ingamandla amaningi, ukungasebenzi kucishe kukusize.
@smellsofbikes Ukuthi ngezinye izikhathi unamandla amaningi futhi ungakha okuthile ngendlela engafanele akusho ukuthi kufanele. Kwenzekani uma uphelelwa amandla okwamanje kodwa kusadingeka udlule kunqubo engasebenzi kahle? Njengesibonelo sami sethangi elikhulu lamanzi ngenhla, kufanele uthole ibhalansi enengqondo ukuze kuthi lapho uphelelwa amandla futhi uma unamandla anele ekhonsathi yensimbi enzima, izinto ezibalulekile/eziwusizo zingaqedwa… . ..
Lapho ungakwazi ukunikeza imali noma kungani unganikezi mahhala **? Khona-ke konke okweqile ongakudala kungamandla nje ongawasebenzisi, futhi akuwona ukuphela komhlaba, ihlazo nje.
** Uma sicabanga ukuthi lokhu akudingi ukuthi wenze noma yiziphi izindleko ezisebenzayo - okuyinkinga enkulu lapha, "imali ephansi" yoxhumano lwenethiwekhi ibalulekile, ngakho-ke ngisho noma ungasebenzisi okuningi koxhumano lwakho cishe kuzobiza. Okuningi . kunokuba bakuthumele kuwe. Bakukhokhela ngokwedlulele - hhayi ukuthi ngimelene nokukhipha ngokweqile, kusebenza kwabanye abantu abakule nethiwekhi enkulu futhi angiyidingi. Kepha ukukhokhela inkampani leyo mali ngelungelo lokwenza imali eningi kwabanye abantu…
Njengoba amadivayisi asebenza nge-USB avame kakhulu, ngacabanga ngento efanayo nge-5V. Okungcono nakakhulu kungaba izimbobo eziningi ze-5V USB C nezimbobo eziningi ze-AC. Ukusuka lapho, ungasebenzisa i-5V kumadivayisi anamandla aphansi kanye ne-USB C kumadivayisi anamandla aphezulu. Okubi ukuthi izimbobo ze-USB C kufanele zibambe i-voltage ngayinye lapho i-USB A 5v ingujantshi we-5v.
Okungenani, ngiqinisekile ukuthi ngizogcina ngakhe ihhovisi elinamapayipi anamandla e-5V USB. Ngingenza i-12V futhi, njengoba amaphrojekthi ami kagesi adinga ngaphezu kwe-5V cishe njalo adinga i-12V. (Futhi, ngiqinisekile ukuthi yonke irutha enginayo isebenzisa i-12V, futhi kungaba kuhle ukuba nezitolo ezilula zocingo ngalunye esikhundleni se-transformer yodonga!)
Ngiyaxolisa ukukutshela ukuthi i-5V (noma i-12V) ayilungile ekusabalaliseni amandla: imitha nje noma amabili ekhebuli edonsayo enokulahlekelwa okungu-10% noma ngaphezulu cishe ayinakusebenziseka. Izimoto zidonsa kanzima ngo-12v ngaso sonke isikhathi, kodwa njengoba zizincane ziyakwazi ukuyiphatha, kodwa amaloli nezikebhe ezinkulu zisebenzisa i-24v, ngakho yebo, i-48v iyinani elingcono kakhulu: iseyisilinganiso esiphephile inqobo nje uma ungayikhothi. . I-voltage ejwayelekile, imishini eyanele kanye nekhono lokuthutha ubude obuthile ngaphandle kokulahlekelwa okuningi.
Ukulahlekelwa kokuguqulwa kwamandla kubaluleke kakhulu kunokulahlekelwa kwekhebula. Isibonelo, endabeni yalesi sihloko, sicabangela ukuthi ukuguqulwa ngakunye kwe-DC-to-DC kusebenza kahle ngo-90%, sigcina silahlekelwe u-27% wamandla esiwathola kushaja ye-USB engu-5V. Uma isiguquli sibi kakhulu, ngo-85%, khona-ke ukulahlekelwa kuzofinyelela ku-39%. Izilawuli zokushaja neziguquli ekusebenzeni ngokuvamile zifinyelela ukusebenza kahle okungama-80%, ngakho-ke akuvamile ukulahlekelwa amandla afika kuhhafu ngenxa yokulawulwa kwamandla kagesi. Uma isidingo sesistimu siphansi, ukulahleka kwemishini engasebenzi kungadla cishe wonke amandla.
Ngaphandle uma usebenzisa izintambo eziwugqinsi, ukulahleka kwekhebula kungaba phezulu kakhulu ku-5V, futhi cishe uzochitha imali eningi kulawo makhebuli kunalokho obungakwenza ekuguquleni okusebenzayo okungu-24V.
Uma unezimbobo ezimbili ze-5W USB, udinga ukunikezwa kwamandla okungu-120W. Uma ukunikezwa kwamandla bekunomthwalo oyisisekelo ongaguquki ongu-10W, “ukusebenza kahle” komthwalo oshiwo bekungaba ngu-92%, kodwa uma isilinganiso sokusetshenziswa kwembobo ye-USB cishe singu-5%, ukusebenza kahle kwesistimu kwangempela sekukonke cishe kungama-60%. .
Noma yini engaphansi kobuncane obuphelele obungu-36V akumele isetshenziswe emabangeni amade. Ikakhulukazi hhayi 5v. Ama-adaptha kagesi ashibhile, ithusi liyabiza futhi liyasinda. Amabhethri nawo ayabiza futhi ukuphelelwa amandla kuyinkinga.
Ngokwami, bengingeke ngenze noma yiluphi uhlobo lwe-LVDC microgrid nhlobo (ngangijwayele ukudlala ngayo futhi ngayizonda kakhulu ngenza ividiyo ephelele ngayo).
Ngihlala ngithi beka ibhethri endaweni yokulayisha bese usebenzisa intambo yokunweba uma udinga amandla. Okuhlukile yi-PoE, emahhala ku-Ethernet futhi ungayidinga ngezinye izinjongo.
I-USB-C yawo wonke amaphrojekthi akho, anikwa amandla amabhethri angaphandle nama-adaptha odongeni njengoba kudingeka. Qaphela ukuthi amamojula e-USB-PD trigger akhona, ungathola 9, 15 noma 20 uma uthanda (i-12V ayisebenzi futhi cishe ngeke isebenze nama-adaptha amasha e-IIRC)
Uma ufuna ukusebenzisa amandla elanga, i-12V ilungele ukugijima okuncane kufika ku-100W amafidi ambalwa, futhi ivame kakhulu kune-5V kanye ne-48V njll, yenze. Noma vele uthenge i-generator yelanga ye-LifePO4 yezentengiselwano, zinhle kakhulu.
Wonke umuntu onesifiso sokuzenzela uhlala efuna ukwenza okuthile ngebhasi le-DC, kodwa lokho ngokuvamile kuyinto embi ngoba amadivayisi abathengi awadalelwe wona futhi ulahlekelwa isici “sokusebenza nje” sensumpa ye-USB ephela yonke indawo. indawo. Amakhebuli amakhulu kanye nenqwaba yezixhumi ezingajwayelekile ezingalingani umhlaba wonke futhi ziwumthwalo wesistimu yakho ye-DIY.
Ukuqaliswa okungcono kakhulu engikubonile kuyindinganiso ye-ARES yomsakazo we-ham, kodwa noma kunjalo... kuhle kakhulu kuma-run amafushane.
Ngamandla angu-5V ehhovisi, ngivele ngisebenzise i-outlet yodonga ene-transformer eyakhelwe ngaphakathi kanye nembobo ye-USB.
Ukuze i-12V yamarutha nezinye izinto zicaciswe, ngingavele ngithenge i-transformer enkulu engu-12V 5A kanye nekhebula engu-2.1mm Y (qiniseka ukuthi uthola ehloniphekile) noma ngilinde kuze kube yilapho imojula ye-trigger itholakala i-PPS ye-12V, thatha i-12V. I-USB evela kumadivayisi amasha - imbobo C.
Noma okungcono, khipha amandla okungewona awe-USB noma nini lapho kunokwenzeka. Ukuchitha okuthe xaxa ekuthuthukiseni ukuze uthole wonke ama-USB-PD kuzoxazulula yonke inkinga uma udinga umzila omusha noma iyiphi irutha ephezulu okungenzeka inikwe amandla nge-USB.
Uma bengifuna ngempela ukuphuma kwe-12V, bengingacabanga ukubeka isiguquli esinezintambo ezithi Mean Well ebhokisini lesevisi eduze nendawo yokukhipha esikhundleni sokusebenzisa empeleni i-12V. Alikho iphuzu elilodwa lokwehluleka, ukulahlekelwa amandla kukhebula eliwugqinsi noma elincanyana, ukulungiswa okulula nokusobala.
I-120V DC ikulungele ukunika amandla imithombo eminingi “ye-AC”, kodwa lowo umkhawulo ophansi kakhulu walokho abakujabulelayo. Bakhetha i-160VDC noma ngaphezulu.
Cha, ngokuhlangenwe nakho kwami banqamula cishe i-65Vdc, kodwa kufanele futhi uhlukanise ngaphansi kwe-130Vdc, angikalingani, kodwa ngicabanga ukuthi ukwehla komugqa okungu-100-0% kusuka ku-130-65Vdc.
Umcabango oyinqaba. Ngicabanga ukuthi isekethe yokokufaka iphethe i-fixed current. Lokhu kusho ukuthi lapho i-voltage ifinyelela ku-130V kuya ku-65V, isilinganiso sincishiswa sibe ngu-50%, futhi ngaphansi kuka-65V, enye isekethe yokuvimbela i-voltage iqala.
Iziteshi ezincane eziningi zinebhethri elinika amandla ama-relay okuphepha futhi livumela ama-circuit breaker ukuthi asebenze (avuleke futhi ashaje) uma kwenzeka kunqamuka ugesi. I-voltage ejwayelekile ingu-115 VDC. Isebenzisa ibhethri elingu-100% futhi ineshaja ye-AC->DC yokuqinisekisa ukuthi ibhethri ihlale ishajwe ngokugcwele, ngakho-ke awukho umsebe welanga kulokhu.
Ngokwencwadi kaMotzenbocker ethi “Reclaiming the Power” https://yugeshima.com/diygrid/ 120vdc kuphela
Inkinga yokusabalalisa amandla e-DC yaxazululwa ngosizo lwe-802.3af (aka PoE) - Amandla phezu kwe-Ethernet. Asikho ngempela isidingo sokusebenzisa ingxenye ye-Ethernet ye-equation. Ama-adaptha atholakala yonke indawo, ukusatshalaliswa kwamandla okuvikelekile namathuluzi amahle kakhulu okubika/okuphatha. Akubizi nakancane – ungathola ihabhu yesikhungo sedatha yechweba elingu-100Mbps 48 ngemali encane efika ku-£30.
Ihhotela i-Marcel eNew Haven linamakamelo angu-164, wonke anikezwa amandla elanga nezintambo ze-DC. Nasi ukubuka konke okuhle: https://www.youtube.com/watch?v=J4aTcU6Fzoc.
Bengizoyisho, basebenzisa i-POE. Ukulahlekelwa okubangelwa ukusebenza kufanele kube ngaphansi kokulahlekelwa lapho ushintsha usuka ku-DC uye ku-AC uphinde ubuyele ku-DC. Futhi ikunikeza izibalo ezakhelwe ngaphakathi mayelana nalokho okusebenzisayo.
Kwesinye isikhathi ngiyakhohlwa ukuthi ngihlala ngingaxhunyiwe ku-inthanethi. Ngine-inverter engu-48VDC kuya ku-220VAC ekusetheni kwami ekhipha cishe u-5kW ngokuqhubekayo, nakuba ingakaze ilayishwe kakhulu. Iphampu yamanzi engu-220 volt, isiqandisi, isiqandisi, izinto zikagesi, amathuluzi, izibani, konke lokhu kuyindinganiso yamaxhaphozi. Ngine-12V ne-24V DC ehlukene kanye/noma ezinye izinhlobo eziningi zezilungiselelo zamandla. Yenza ibhizinisi lesakhiwo sensimbi endaweni efanayo bese umpompa amanzi okuphuza ehhashi elikhulu. Amabhethri asuka kusistimu enkulu ye-UPS engiyithola lapho ngishintsha amabhethri ngeshejuli. Yenza ukuhlolwa kwe-voltage kumabhethri, khetha angcono kakhulu, bese ufaka i-heater yokumelana, uphinde uqaphe i-voltage, khetha angcono kakhulu futhi futhi uwathenge.
Yebo, iningi lamadivayisi anokufakwayo kwe-AC “komhlaba wonke” angasebenza ngamandla e-DC. Phindaphinda i-voltage yokufaka ye-AC ngo-1.4 ukuze uthole i-DC efanayo. Kodwa-ke, amafuse awo angaphakathi awakaliwe nge-DC. Zimiselenise ngefuse ye-DC noma sebenzisa ifuse yangaphandle. Ungawushisi umuzi!
> “Lokhu kusho ukuthi amandla kagesi esekethe aphezulu acishe abe ngu-0.80 V. Uma kwenzeka umlilo (ngethemba lokuthi awusoze washa), lokhu ngeke kube yingozi enkulu kubacishi bomlilo.”
Izinga le-ELV libheka i-120 VDC “njengephephile” ngaphandle kokunyakaza, kodwa i-EU General Safety Standard ikukhawulela ku-75 VDC, kuyilapho i-Low Voltage Directive isebenza kunoma iyiphi i-voltage ebangeni elingu-75-1000 VDC. Usengaphula umthetho futhi udinga imvume yokufaka uhlelo olunjalo, kodwa kunzima ukuthola impendulo ecacile noma yimuphi umbhalo walokho ongakwenza njengomakhi oyedwa ngaphandle kokuqeqeshwa okukhethekile.
Isikhathi sokuthumela: Jul-19-2023