Ubuchwepheshe Definition
I-Low-Voltage Residential BESS (≤ 60 V)
Isakhiwo esabalalisiwe lapho amamojula webhethri angu-40–60 V ahambisana ezingeni lekhabhinethi. Isiteji esisodwa se-DC-DC ngaphakathi kwesiguquli esiyingxubevange sikhuphula i-voltage yebhethri ku-DC-bhasi yangaphakathi, lapho ihlanganiswe namandla e-PV ngaphambi kokuguqulwa.
I-High-Voltage Residential BESS (85–600 V)
Isakhiwo esimaphakathi, esistakiwe sochungechunge: amamojula amaningi axhunywe ochungechungeni ukuze akhe iyunithi yezinhlamvu yebhethri engu-85–600 V. Ibhokisi lokulawula lamandla kagesi aphezulu (amafusi ahlanganisiwe, othintana naye, ukushajwa kwangaphambilini kanye nokuqapha okuhlukaniswayo) liphakela iyunithi yezinhlamvu ngokuqondile ku-DC-bhasi ye-inverter ngesilawuli se-buck/boost.
Ukuqhathanisa Ukusebenza
I-Low-Voltge
Izinzuzo
- Umbuso wokuphepha we-Extra-low-voltage (ELV); ubungozi bokuthintwa okuncane
- Ukufakwa kwe-modular, i-plug-and-play; i-CapEx ephansi yemindeni enesabelomali
- Ama-algorithms ahambisanayo e-BMS enziwe lula
Ububi
- Ukulahlekelwa okunamandla okuphikisayo (I²R) → 3–5 % inhlawulo yamandla
- Amandla okukhipha alinganiselwe; ayilungele imithwalo engaphezu kuka-3 kW
- Ukwehla kwamandla esikhathi eside kumabhulokhi ahambisanayo kukhulisa imijikelezo yokulungisa
I-High-Voltage
Izinzuzo
- Kufika ku-96 % ukusebenza kahle kohambo lokuya nokubuya (RTE) sibonga amaza aphansi kanye nomthwalo oshisayo oncishisiwe
- okukhiphayo okuqhubekayo okungu-5–10 kW; isekela i-HVAC, iphampu yokushisa noma ukuhlinzwa kwe-heater yamanzi ngokushesha
- Izingxenye eziphambanayo zekhebula elincane → ukukhanya, izintambo ezihlangene kakhulu nezikazibuthe ze-inverter
Ububi
- Idinga ochwepheshe be-HV abaqinisekisiwe; ukuhlolwa komlilo kwe-IEC 63056 / UL 9540A okuqinile
- I-voltage eqinile yeleveli yeseli kanye nezinga lokushisa elihambisanayo; i-BMS ethuthukisiwe enokulinganisa okusebenzayo
- Izindleko zangaphambili eziphakeme (ibhethri + igiya lokuphepha le-HV)
Izimo Zohlelo Lokusebenza
I-Low-Voltge
- Amafulethi amancane / izindlu zangezimpelaviki ezinomthwalo wansuku zonke ongu-< 10 kWh futhi ezingenazo izinto zikagesi ezigijima kakhulu
- Izakhiwo zokulinga noma eziqashiswayo lapho ukususwa ngokushesha kunenani ngaphezu kokusebenza okuphezulu
I-High-Voltage
- Amakhaya omndeni owodwa ophakathi nendawo kuya kwemikhulu ahloselwe ukusebenzisela amandla angu-90%
- Ubufakazi besikhathi esizayo be-V2H / ukuhlanganiswa kwejeneretha eyisipele noma amaphakethe okunweba angu-15 kWh–30 kWh
I-Levelyed Cost of Storage (LCOS)
I-Low-Voltge
I-CAPEX ephansi, kodwa ukulahlekelwa kwamandla engeziwe okungu-5 %–8 % ngomjikelezo ngamunye nokushintshwa kwamaseli ngaphambi kwesikhathi kungakhuphula i-LCOS yeminyaka engu-10 ngo-12–15 % uma kuqhathaniswa ne-HV.
I-High-Voltage
20–30 % we-CAPEX premium offset by > 90 % RTE kanye nempilo yomjikelezo oyi-8 000–10 000; ikhefu-ngisho ngokuvamile lifinyelelwa onyakeni wesi-5–6 ngaphansi kwezindleko ze-TOU zaseJalimane noma zaseCalifornia.
Ukuphepha Nokuthobela Ikhodi
I-Low-Voltge
Iwa ngaphansi kwe-SELV (I-Safety Extra-Low Voltage); akukho ukunqanyulwa kwe-arc-fault okuphoqelekile; I-DIY-friendly ezindaweni eziningi.
I-High-Voltage
Kufanele ihlangabezane ne-IEC 62109-1/2, UL 1973 kanye namakhodi okufakwa e-HV endawo; ukuqapha kokufakwa okuphoqelekile, ukuphazamiseka kwesifunda se-arc-fault (AFCI) kanye nezivumelwano zokuvala shaqa < 5 s ngemva kokutholwa kwephutha.
Isiphetho:
Khetha i-low-voltage uma imali iqinile, imithwalo ilula futhi isivinini sokufaka sibalulekile. Cacisa i-high-voltage uma udinga ukusebenza kahle okuphezulu, amandla aphezulu asheshayo kanye nezindleko zokuphila eziphansi kakhulu nge-kWh ngayinye. Kunoma ikuphi, fanisa izakhiwo nephrofayela yomthwalo—hhayi enye indlela—futhi ugcizelele ekuhlanganisweni okuqinisekisiwe ukuze uvule inani eliphelele lesiqinisekiso se-BESS yakho yokuhlala.
