太陽(yang)能板(ban)組成(cheng)的(de)家用(yong)(yong)光伏發(fa)(fa)(fa)電(dian)(dian)設備(bei)依據裝備(bei),發(fa)(fa)(fa)電(dian)(dian)量(liang)有(you)大有(you)小(xiao)。依照(zhao)一般狀況,光伏發(fa)(fa)(fa)電(dian)(dian)能夠帶空(kong)調(diao)，但(dan)不(bu)(bu)能直接供,要先用(yong)(yong)電(dian)(dian)瓶(ping)把(ba)電(dian)(dian)貯存越(yue)來,再(zai)經過一個逆(ni)變器把(ba)直流(liu)電(dian)(dian)變成(cheng)交流(liu)電(dian)(dian),假設功(gong)率(lv)足夠大是能夠的(de)，假如用(yong)(yong)的(de)是調(diao)頻空(kong)調(diao),電(dian)(dian)瓶(ping)組又(you)有(you)適宜的(de)電(dian)(dian)壓組合,能夠不(bu)(bu)必逆(ni)變器,能夠進步整個電(dian)(dian)源的(de)功(gong)率(lv)。但(dan)這樣要求太陽(yang)能板(ban)足夠大,不(bu)(bu)然功(gong)率(lv)不(bu)(bu)行就帶不(bu)(bu)動。
比方一(yi)個用戶有(you)250瓦電池板四塊(kuai)(kuai),100AH蓄電池四塊(kuai)(kuai),2000瓦工頻(pin)純粹(cui)波逆變(bian)器一(yi)臺,48V30A控(kong)制器一(yi)部,這樣的調配能夠帶起1.5p變(bian)頻(pin)空調嗎？
假如(ru)單(dan)從太(tai)(tai)陽能板電(dian)(dian)功率的(de)(de)視點(dian)核算是能夠(gou)(gou)的(de)(de)。由于1.5p的(de)(de)空調的(de)(de)電(dian)(dian)功率大也(ye)就(jiu)(jiu)1kw,用(yong)戶(hu)是2kw的(de)(de)逆變器,因而能夠(gou)(gou)給這臺變頻空調供電(dian)(dian)。然(ran)后就(jiu)(jiu)是核算電(dian)(dian)能讓空調運轉多久(jiu)了。用(yong)戶(hu)的(de)(de)4塊(kuai)太(tai)(tai)陽能電(dian)(dian)池板依照(zhao)一天5小時的(de)(de)有用(yong)光(guang)照(zhao),能夠(gou)(gou)發電(dian)(dian)5kwh,就(jiu)(jiu)是5度電(dian)(dian),4塊(kuai)蓄電(dian)(dian)池是100Ah,那(nei)么多也(ye)只能寄存5度電(dian)(dian)。也(ye)就(jiu)(jiu)是說,只需用(yong)戶(hu)的(de)(de)空調一天耗電(dian)(dian)量不超(chao)過5度電(dian)(dian)就(jiu)(jiu)能夠(gou)(gou)了。
再(zai)按(an)另一(yi)個視點(dian)來考(kao)慮一(yi)下。太陽(yang)能(neng)板(ban)變(bian)頻空(kong)調(diao)(diao)(diao)假如是在(zai)房間里,空(kong)間不大(da)(da),隔熱保溫好,所以假如是夏天,設定的(de)(de)溫度就(jiu)不要太低(di)。假如變(bian)頻空(kong)調(diao)(diao)(diao)作業(ye)時(shi)的(de)(de)功(gong)率一(yi)向堅持不高于400w,那(nei)么5度電(dian)(dian)能(neng)夠讓空(kong)調(diao)(diao)(diao)運轉12個小時(shi),假如空(kong)調(diao)(diao)(diao)滿(man)負荷運轉,才(cai)干作業(ye)5個小時(shi)。因而(er)主張能(neng)夠再(zai)增大(da)(da)太陽(yang)能(neng)電(dian)(dian)池板(ban)的(de)(de)數量(liang),少要增加(jia)到6塊或者8塊。由于上邊(bian)滿(man)是理論核算,實際上存(cun)在(zai)轉換率的(de)(de)問題,并且假如太陽(yang)照(zhao)耀的(de)(de)時(shi)分熱,太陽(yang)能(neng)發的(de)(de)電(dian)(dian)剛好被空(kong)調(diao)(diao)(diao)用(yong)完,等太陽(yang)光(guang)照(zhao)不強(qiang)時(shi),空(kong)調(diao)(diao)(diao)就(jiu)不能(neng)運轉了,此(ci)刻蓄電(dian)(dian)池電(dian)(dian)量(liang)簡直為0。
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