Isiteshi sokushaja se-AC VS DC

Uma uke wazibuza ukuthi kungani kubizwa “Ukushaja okusheshayo kwe-DC,” impendulo ilula. I-“DC” ibhekisela “ku-direct current,” uhlobo lwamandla asetshenziswa amabhethri. Iziteshi zokushaja ezikuLeveli 2 zisebenzisa i-“AC,” noma “alternating current,” oyoyithola ezindlini ezivamile zasendlini. Ama-EV anamashaja angaphakathi emotweni aguqula amandla e-AC abe yi-DC ngebhethri. Amashaja asheshayo e-DC aguqula amandla e-AC abe yi-DC ngaphakathi kwesiteshi sokushaja futhi alethe amandla e-DC ngokuqondile ebhethrini, yingakho eshaja ngokushesha.

Iziteshi zethu ze-ChargePoint Express ne-Express Plus zihlinzeka ngokushaja okusheshayo kwe-DC. Sesha imephu yethu yokushaja ukuze uthole indawo yokushaja esheshayo eduze nawe.

Ukushaja Ngokushesha kwe-DC Kuchaziwe

Ukushaja i-AC kuwuhlobo olulula kakhulu lokushaja ongaluthola - izitolo zikhona yonke indawo futhi cishe wonke amashaja e-EV ohlangana nawo emakhaya, ezindaweni zokuthenga, nasezindaweni zokusebenza angamashaja akwa-Level2. Ishaja ye-AC inikeza amandla eshajani esebhodini yemoto, iguqule lawo mandla e-AC abe yi-DC ukuze kungene ibhethri. Izinga lokwamukelwa kweshaja esebhodini liyahlukahluka ngohlobo kodwa likhawulelwe ngezizathu zezindleko, indawo nesisindo. Lokhu kusho ukuthi kuye ngemoto yakho kungathatha noma yikuphi ukusuka emahoreni amane noma amahlanu ukuya ngaphezu kwamahora ayishumi nambili ukushaja ngokugcwele kuZinga lesi-2.

I-DC Fast Charging idlula yonke imikhawulo yeshaja esebhodini nokuguqulwa okudingekayo, esikhundleni salokho inikeze amandla e-DC ngokuqondile ebhethrini, isivinini sokushaja sinamandla okunyuka kakhulu. Izikhathi zokushaja zincike kusayizi webhethri kanye nokuphumayo kwesikhiphi, nezinye izici, kodwa izimoto eziningi ziyakwazi ukuthola ukushajwa okungu-80% cishe noma ngaphansi kwehora zisebenzisa amashaja amaningi asheshayo e-DC atholakalayo njengamanje.

Ukushaja okusheshayo kwe-DC kubalulekile ekushayeleni ibanga elide/ibanga elide kanye nemikhumbi emikhulu. Ukushintsha okusheshayo kwenza abashayeli bakwazi ukushajwa kabusha phakathi nosuku lwabo noma ngekhefu elincane esikhundleni sokuxhunywa ebusuku, noma amahora amaningi, ukuze bashaje ngokugcwele.

Izimoto ezindala bezinemikhawulo ebizivumela ukuthi zishaje ngo-50kW kuma-DC (uma bezikwazi nhlobo) kodwa sekuphuma izimoto ezintsha ezikwazi ukwamukela afinyelela ku-270kW. Ngenxa yokuthi usayizi webhethri ukhuphuke kakhulu kusukela ama-EV okuqala afika emakethe, amashaja e-DC abelokhu ethola imiphumela ephezulu ukuze afane - amanye manje anamandla afinyelela ku-350kW.

Njengamanje, eNyakatho Melika kunezinhlobo ezintathu zokushaja okusheshayo kwe-DC: i-CHAdeMO, i-Combined Charging System (CCS) ne-Tesla Supercharger.

Bonke abakhiqizi abakhulu beshaja ye-DC banikeza amayunithi asezingeni eliningi anikeza ikhono lokushaja nge-CCS noma i-CHAdeMO eyunithi efanayo. I-Tesla Supercharger ingasevisa izimoto zakwaTesla kuphela, kodwa izimoto zakwaTesla ziyakwazi ukusebenzisa amanye amashaja, ikakhulukazi i-CHAdeMO yokushaja okusheshayo kwe-DC, nge-adaptha.

 4.Isiteshi sokushaja se-DC

Isiteshi sokushaja se-DC siyinkimbinkimbi kakhulu ngokwezobuchwepheshe futhi sibiza izikhathi eziningi kunesiteshi sokushaja se-AC futhi ngaphezu kwalokho sidinga umthombo onamandla. Ngaphezu kwalokho, isiteshi sokushaja se-DC kufanele sikwazi ukuxhumana nemoto esikhundleni seshaja esebhodini ukuze sikwazi ukulungisa amapharamitha wamandla okukhiphayo kuye ngokwesimo namandla ebhethri.

Ikakhulukazi ngenxa yentengo nobunkimbinkimbi bezobuchwepheshe, singabala iziteshi ze-DC ezimbalwa kakhulu kuneziteshi ze-AC. Njengamanje kunamakhulu awo futhi atholakala emithanjeni emikhulu.

Amandla ajwayelekile esiteshi sokushaja se-DC angu-50kW, okusho ukuthi angaphezu kokuphindwe kabili kunawesiteshi se-AC. Iziteshi zokushaja ezishesha kakhulu zinamandla afinyelela ku-150 kW, kanti iTesla isungule iziteshi zokushaja ezisheshayo kakhulu ezinamandla angu-250 kW.
Iziteshi zokushaja ze-Tesla. Umbhali: I-Open Grid Scheduler (Ilayisensi CC0 1.0)

Nokho, ukushaja kancane usebenzisa iziteshi ze-AC kulula kumabhethri futhi kusiza ukuphila kwawo isikhathi eside, ngakho isu elikahle ukushaja usebenzisa isiteshi se-AC nokusebenzisa iziteshi ze-DC ohambweni olude kuphela.

Isifinyezo

Ngenxa yokuthi sinezinhlobo ezimbili zamanje (i-AC ne-DC), kukhona namasu amabili lapho ushaja imoto kagesi.

Kungenzeka ukusebenzisa isiteshi sokushaja se-AC lapho ishaja inakekela ukuguqulwa. Lolu khetho luhamba kancane, kodwa lushibhile futhi lumnene. Amashaja e-AC anamandla afinyelela ku-22 kW futhi isikhathi esidingekayo ukuze ushaje ngokugcwele sincike kuphela ekuphumeni kweshaja engaphakathi ebhodini.

Kungenzeka futhi ukusebenzisa iziteshi ze-DC, lapho ukushaja kubiza kakhulu, kodwa kuzokwenzeka phakathi nemizuzu embalwa. Ngokuvamile, okukhiphayo kungu-50 kW, kodwa kulindeleke ukuthi kwande esikhathini esizayo. Amandla amashaja asheshayo angu-150 kW. Zombili zitholakala eduze kwemizila emikhulu futhi kufanele zisetshenziselwe uhambo olude kuphela.

Ukuze wenze isimo sibe nzima nakakhulu, kunezinhlobo ezahlukene zezixhumi zokushaja, uhlolojikelele esethula ngalo. Kodwa-ke, isimo siyashintsha futhi izindinganiso zamazwe ngamazwe kanye nama-adapters ziyavela, ngakho-ke esikhathini esizayo, ngeke kube yinkinga enkulu kunezinhlobo ezahlukene zamasokhethi emhlabeni.