Wik Grid ɛn Frɛkuɛnt Ɔtjɛj: Sɛtin Dip fɔ Dischaj fɔ Afrikan Bes Steshɔn dɛn

Atikul

Ɔgɔst 22, 2017

We di grid avaylabl fɔdɔm frɔm 99% to 60%, wan bateri kin stɔp fɔ de flot standby ɛn bigin fɔ bayk ɛvride. Batri dɛm we dɛn spɛsifa pan UPS asɔmpshɔn dɛn kin fel insay ettin mɔnt ɔlsay na Nayjiria, Sawt Afrika, Gana ɛn Tanzania — di prɔblɛm na di duty asɔmpshɔn, nɔto di prɔdak. Dis atikul kwantifay dip fɔ dischaj agens saykl layf ɛn gi wan kapasiti faktɔ tebul bay grid avaylabl.

Wan Batri, Tu Kɔmplit Difrɛn Duti dɛn

Kɔmɛshɔnal distrikt dɛn na Lagos, provins dɛn ɔlsay na Sawt Afrika we dɛn de shed lod, Gana tru in ‘dumsor’ lod manejmɛnt tɛm, di ɔban fring dɛm na Tanzania ɛn Uganda, ɛn tɔŋ dɛm na wɛst Kenya ɔl de fes di sem grid rialiti: pawa nɔ de fel wan wan tɛm, i de fel bɔku tɛm insay di de fɔ sɔm awa wan tɛm. Dat tan lɛk kwɛstyɔn bɔt frɛkuɛns, bɔt i de tek di ples fɔ di wan ol we aw di bateri de wok. We di avaylabl na 99%, wan bateri de dischaj smɔl pas tɛn tɛm insay di ia ɛn i de sidɔm pan flot; layf na grid kɔrɛshɔn de gayd am ɛn wan twɛlv ia dizayn layf rili na twɛlv ia. Usay di avaylabl na 60%, di bateri de komplit wan ɔ tu ful saykl ɛvride — pas 500 insay wan ia — ɛn layf de gayd bay saykl kɔnt. Di sem prɔdak kin difrɛn pan savis layf pas fayv tɛm bitwin di tu wok dɛn. Yet di prokyumɛnt spɛsifikɛshɔn dɛn kin tɔk bɔt ɔl ‘fo awa bak-ap’ wit nɔ menshɔn bɔt saykl, ɛn da ɔmishɔn de na di rayt rizin we mek batri dɛn kin day we dɛn ol ettin mɔnt.

Di Kwantiti Rilayshɔn Bitwin DOD ɛn Layf

Di ifekt we dip we di dischaj gɛt pan saykl layf na strɔng nɔ-layn, ɛn nɔto jɔs fɔ yuz smɔl fɔ las fɔ lɔng tɛm. fכ kכvεshכnal AGM, 30% DOD kin gi arawnd 1,200 saykl, 50% bכt 600, 80% כnli arawnd 300, εn 100% fכ sכm pas 200. In כda wכd, fכ rayz DOD frכm 50% to 80% i de inkrεs enεji pan wan dischaj bay 60% bכt i de haf saykl kכnt, so tכtal layf tεm truput — saykl tεm εnεji pan wan saykl — fכ tru fɔdɔm. Dat kɔv de ɛksplen wetin mek ‘yuz am mɔ dip’ na ilyushɔn: i jɔs de bay riplesmɛnt kwik. Di kɔrɛkt we fɔ du am na fɔ fɛn di DOD we de maksimayz layf-taym thruput, ɔltɛm bitwin 50% ɛn 70%, we de ɔnda wan impɔtant kɔnstrakshɔn: richaj tɛm afta dip dischaj. We di grid de fɔ sɔm awa nɔmɔ insay di de, 80% dischaj nid fɔ pas tɛn awa fɔ ful-ɔp fɔ richaj, di nɛks de nɔ kin kɔmplit am, ɛn di bateri kin sidɔm ɔndachaj ɔltɛm wit aksilarayshɔn sɔlfeshɔn — we na di rial kil.

Wetin Mek ‘Fɔ Awa fɔ Bak-ap’ Nɔ Fayl na Afrika

Fo awa bak-ap na kapasiti figa, nɔto layf figa, ɛn i de fel pan wik-grid duty along tri rod. fכs, dεn nכ de ignore saykl kכnt כlsay: fכ awa bak-ap implεnt roughly 50% to 60% DOD, so na wan saykl wan de εn 365 wan ia, wan kכvεshכnal AGM we dεn rayt 600 saykl dεm de taya insay lεk twɛnti mכnt — kכlכsכl εksakכt di ettin mכnt we dεn si na di fil. Sɛkɔn, di chaj winda nɔ go du fɔ am: wan string we saiz fɔ 4 awa lod tipikul fɔ chaj na 0.1C nɔmɔ, so fɔ go frɔm 50% to 100% kin tek ova tɛn awa, we di grid de de fɔ 4 to siks awa nɔmɔ insay di de; di bateri nɔ de ɛva rich ful chaj ɛn i de liv fɔ ɔltɛm na PSoC. Tɔd, ɔt kin mek i kɔmpawnd: bɔku say dɛn na Afrika kin rɔn na 35°C to 45°C, ɛn dɛn kin diskɔnt di saykl layf bak pan dɛn tɛmpracha dɛn de. Stak di tri ɛn yu gɛt ettin mɔnt. So wan spɛsifikɛshɔn fɔ tɔk tri tin togɛda: di target saykl kɔnt, di chaj winda we de, ɛn di sayt ambiɛnt tɛmpracha.

Kapasiti Fakta bay Grid Avaylabl

Na wan tebul we yu kin yuz dairekt wan. Di prinsipul na dat kapasiti de saiz to di de enaji dɛfisit, nɔto to bak-ap awa. Abov 95% avaylabl di duty na flot standby: saiz to di longest singl outage taims lod, hol DOD insay 50%, en di standad front-terminal siris na inof. Bitwin 80% ɛn 95%, wit lɛk wan tu to 4 awa ɔtjɛj wan de, aplay sayklin faktɔ we na 1.2 pan tap bak-ap awa ɛn lɛk dip-saykl siriɔs (FTC, 100–170Ah, we dɛn rayt 1,500 saykl ɔ mɔ). Bitwin 50% ɛn 80%, di bateri na di de sayklin praymɛnt muva: aplay wan factor we na 1.5 to 1.8 ɛn muv to lid-kabɔn (LLC, 300–1,000Ah, 4 to fayv tɛm saykl layf insay PSoC) ɔ LiFePO4 (SDA10, kɔntinyu 1C dischaj). Dɔŋ 50%, di sayt de ifɛktiv wan ɔf-grid: saiz fɔ wan ful saykl wan de plus tri dez ɔtonomi tru ɔvakas wɛda, we min fɔ go stret to wan solar haybrid dizayn — fɔ ad bateri nɔmɔ nɔto ikɔnomi.

Wan Sɛlɛkshɔn Disishɔn Tri

Kɔndens di analisis insay 4 step dɛn we sayt injinia kin fala. Step wan, grid avaylabl: oba 95%, tek di standad 12V frɔnt-tɛminal siriɔs (6-FMX, 50–200Ah, twɛlv-ia dizayn layf) pan di lɔs kɔst; 80% to 95%, tek dip-saykl (FTC) ɔ jel (6-XFMJ, fayvtin ia dizayn layf, we de telɛ ɔt wit lɔw wata lɔs); 50% to 80%, tek lid-kabɔn (LLC, twɛnti ia dizayn layf, 30% bɛtɛ chaj akseptans so di limited chaj winda na in dɛn rili yuz); dכn 50%, muv to solar haybrid εn saiz di bateri fכ sayklכs evride. Step tu, chaj winda: usay grid prezɛns de ɔnda siks awa insay di de, chaj akseptans de dominate, ɛn lid-kabɔn ɔ litiɔm bit kɔvɛnshɔnal AGM. Step tri, ambient temperechur: oba 45°C persistently, fεr lid-kabכn כ wan hכy-tεmprachכ siriכs; usay dεn de kכntrol tεmprachכ, dεn kin yuz di vכlyum advantej fכ litium. Step 4, layf we lɛf: wan sayt we gɛt ɔnda fayv ia lis we lɛf nɔ nid twɛnti ia teknɔlɔji — tek di opshɔn we smɔl pas ɔl we de fala fɔ di tɛm we lɛf. Afta 4 step, na smɔl ples de fɔ agyu.

Fayv Mandatory Items in di Spɛsifikeshɔn

Insay wik-grid diuti di spesifikeshɔn fɔ tɔk bɔt di duty, nɔto jɔs di kapasiti. Fayv tin dɛn na mandatory, ɛn if yu nɔ pul ɛni wan, dat go mek yu go bak to di ettin mɔnt we yu nɔ ebul fɔ du am. Fɔs, di grid we de as pasɛnt, wit di ripɔt tɛm we dɛn tɔk bɔt — ɛvri mɔnt ɔ ɛvri ia, bikɔs di tu de prodyuz rili difrɛn figa dɛn — ɛn dis tin nɔmɔ de disayd if di bateri de flot ɔ saykl. Sɛkɔn, di lɔngest singl ɔtjɛj tɛm ɛn avɛrej ɔtjɛj fɔ wan de, we dɛn tɔk am sɛpret: di fɔs wan de disayd di kapasiti, di sɛkɔn wan de disayd di saykl layf, ɛn bɔku pan di spɛsifikɛshɔn dɛn de kapchɔ di fɔs wan nɔmɔ. Tɔd, di chaj winda we de fɔ wan de, we de sɛt di chaj akseptɛns rikwaymɛnt; ɔnda siks awa, fast-chaj tɛknɔlɔji na mandatory ɔ di bateri nɔ de ɛva rich ful chaj. Fɔs, sayt tɛmpracha rɛnj, we dɛn tɔk as kabinɛt intɛriɔ pas ɔdasay, wit di sɔma pik, bikɔs kabinɛt intɛriɔ dɛn tipikul fɔ rɔn pas 10°C ɔp di ambiɛnt. Fayv, target savis layf ɛn di sayt lis we lɛf, so sayt we gɛt tri ia lis we lɛf nɔ fit wit twɛnti ia bateri — dat nɔto prudɛns, na west. Wit dɛn fayv ya we dɛn dɔn tɔk, di wan dɛn we de bid nɔ go ebul fɔ ayd biɛn wan sɛntɛns igen fɔ lɛk 4 awa bak-ap, ɛn ɛvalueshɔn gɛt kɔmparabl bies. Bɔku prɔjek dɛn kin fel nɔto bikɔs dɛn pik di rɔng prɔdak bɔt bikɔs dɛn nɔ ɛva spɛsifa di duty, so di saplay dɛn bin kot agens di mɔs fayn asɔmpshɔn we di ɔpreshɔn dɛn bin de rul di sayt ɔnda di lɛst favɔrabl rialiti. View Telecom Backup Power Selection