太陽(yang)能(neng)(neng)板(ban)組成的(de)家用(yong)光伏發(fa)電設備依據裝備,發(fa)電量有(you)大(da)有(you)小。依照一般狀(zhuang)況,光伏發(fa)電能(neng)(neng)夠(gou)(gou)(gou)帶空(kong)調，但不(bu)能(neng)(neng)直接供(gong),要先用(yong)電瓶把電貯(zhu)存越來(lai),再經(jing)過一個逆(ni)(ni)變(bian)器(qi)把直流電變(bian)成交流電,假(jia)設功率足(zu)夠(gou)(gou)(gou)大(da)是能(neng)(neng)夠(gou)(gou)(gou)的(de)，假(jia)如用(yong)的(de)是調頻空(kong)調,電瓶組又有(you)適宜的(de)電壓組合,能(neng)(neng)夠(gou)(gou)(gou)不(bu)必(bi)逆(ni)(ni)變(bian)器(qi),能(neng)(neng)夠(gou)(gou)(gou)進步整(zheng)個電源的(de)功率。但這樣要求太陽(yang)能(neng)(neng)板(ban)足(zu)夠(gou)(gou)(gou)大(da),不(bu)然功率不(bu)行就帶不(bu)動。
比方一(yi)個用(yong)戶有250瓦(wa)(wa)電池板四塊,100AH蓄電池四塊,2000瓦(wa)(wa)工頻純(chun)粹波(bo)逆變器一(yi)臺,48V30A控(kong)制器一(yi)部,這樣的調配能夠帶起1.5p變頻空調嗎？
假如單從太陽(yang)能(neng)(neng)(neng)(neng)板電(dian)(dian)功率的(de)視點(dian)核算是(shi)能(neng)(neng)(neng)(neng)夠(gou)的(de)。由于(yu)1.5p的(de)空(kong)調的(de)電(dian)(dian)功率大(da)也(ye)就1kw,用(yong)戶是(shi)2kw的(de)逆(ni)變器,因而能(neng)(neng)(neng)(neng)夠(gou)給這臺變頻空(kong)調供電(dian)(dian)。然后就是(shi)核算電(dian)(dian)能(neng)(neng)(neng)(neng)讓(rang)空(kong)調運轉多久了。用(yong)戶的(de)4塊太陽(yang)能(neng)(neng)(neng)(neng)電(dian)(dian)池板依照(zhao)一(yi)天5小時的(de)有用(yong)光照(zhao),能(neng)(neng)(neng)(neng)夠(gou)發(fa)電(dian)(dian)5kwh,就是(shi)5度電(dian)(dian),4塊蓄電(dian)(dian)池是(shi)100Ah,那(nei)么多也(ye)只能(neng)(neng)(neng)(neng)寄存5度電(dian)(dian)。也(ye)就是(shi)說,只需(xu)用(yong)戶的(de)空(kong)調一(yi)天耗電(dian)(dian)量不超過5度電(dian)(dian)就能(neng)(neng)(neng)(neng)夠(gou)了。
再按(an)另(ling)一個(ge)(ge)視點來考慮一下。太陽(yang)能(neng)(neng)(neng)板變(bian)頻空(kong)(kong)(kong)(kong)調(diao)假(jia)(jia)如(ru)是在房間里,空(kong)(kong)(kong)(kong)間不(bu)(bu)大(da),隔熱(re)保溫(wen)好,所以假(jia)(jia)如(ru)是夏天,設定的(de)(de)溫(wen)度就(jiu)(jiu)不(bu)(bu)要太低。假(jia)(jia)如(ru)變(bian)頻空(kong)(kong)(kong)(kong)調(diao)作業(ye)時(shi)(shi)的(de)(de)功率(lv)一向堅持不(bu)(bu)高于(yu)400w,那么5度電能(neng)(neng)(neng)夠(gou)讓空(kong)(kong)(kong)(kong)調(diao)運(yun)轉12個(ge)(ge)小(xiao)時(shi)(shi),假(jia)(jia)如(ru)空(kong)(kong)(kong)(kong)調(diao)滿負荷運(yun)轉,才干作業(ye)5個(ge)(ge)小(xiao)時(shi)(shi)。因而主張能(neng)(neng)(neng)夠(gou)再增大(da)太陽(yang)能(neng)(neng)(neng)電池(chi)(chi)板的(de)(de)數量(liang),少(shao)要增加到6塊或者8塊。由于(yu)上邊(bian)滿是理論核算,實際上存在轉換(huan)率(lv)的(de)(de)問題(ti),并(bing)且假(jia)(jia)如(ru)太陽(yang)照(zhao)耀的(de)(de)時(shi)(shi)分熱(re),太陽(yang)能(neng)(neng)(neng)發(fa)的(de)(de)電剛好被空(kong)(kong)(kong)(kong)調(diao)用完,等(deng)太陽(yang)光照(zhao)不(bu)(bu)強時(shi)(shi),空(kong)(kong)(kong)(kong)調(diao)就(jiu)(jiu)不(bu)(bu)能(neng)(neng)(neng)運(yun)轉了,此刻蓄(xu)電池(chi)(chi)電量(liang)簡直為0。
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