山東省(sheng)青州(zhou)市魯東機械2.1MW光伏發電(dian)站(zhan)項(xiang)目。彩鋼瓦屋頂光伏發電(dian)站(zhan),已并(bing)網發電(dian)成功!
輸送方式
太陽能(neng)光伏(fu)發電(dian)分為獨立(li)光伏(fu)發電(dian)、并網(wang)光伏(fu)發電(dian)、分布式光伏(fu)發電(dian)
獨立光伏發電
獨立光伏發電系統也叫離網(wang)光伏發電系統。主要(yao)由(you)太陽能電池(chi)組件、控制器(qi)、蓄電池(chi)組成,若要(yao)為交流(liu)負載供電,還需要(yao)配置交流(liu)逆(ni)變器(qi)。
并網光伏發電
并網(wang)(wang)光(guang)伏(fu)發電(dian)(dian)(dian)(dian)系(xi)統(tong)就(jiu)是太(tai)陽能組件產生(sheng)的直流電(dian)(dian)(dian)(dian)經過并網(wang)(wang)逆(ni)變器轉換(huan)成符(fu)合市(shi)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)網(wang)(wang)要求的交(jiao)流電(dian)(dian)(dian)(dian)之(zhi)后直接(jie)接(jie)入公共電(dian)(dian)(dian)(dian)網(wang)(wang)。并網(wang)(wang)光(guang)伏(fu)發電(dian)(dian)(dian)(dian)系(xi)統(tong)有集(ji)中式大(da)(da)型并網(wang)(wang)光(guang)伏(fu)電(dian)(dian)(dian)(dian)站一(yi)(yi)般都(dou)是國(guo)家級電(dian)(dian)(dian)(dian)站,主要特點是將所發電(dian)(dian)(dian)(dian)能直接(jie)輸送到電(dian)(dian)(dian)(dian)網(wang)(wang),由電(dian)(dian)(dian)(dian)網(wang)(wang)統(tong)一(yi)(yi)調(diao)配向用戶供電(dian)(dian)(dian)(dian)。但這種電(dian)(dian)(dian)(dian)站投資大(da)(da)、建設周期長(chang)、占地面積大(da)(da),發展難度相對較大(da)(da)。而分散式小(xiao)(xiao)型并網(wang)(wang)光(guang)伏(fu)系(xi)統(tong),特別是光(guang)伏(fu)建筑一(yi)(yi)體化發電(dian)(dian)(dian)(dian)系(xi)統(tong),由于投資小(xiao)(xiao)、建設快、占地面積小(xiao)(xiao)、政策支持(chi)力度大(da)(da)等優點,是并網(wang)(wang)光(guang)伏(fu)發電(dian)(dian)(dian)(dian)的主流。
分布式光伏發電
分布(bu)式光伏(fu)發(fa)電系(xi)(xi)統(tong),又稱(cheng)分散式發(fa)電或分布(bu)式供(gong)(gong)能,是指在用(yong)(yong)戶(hu)現(xian)場(chang)或靠近用(yong)(yong)電現(xian)場(chang)配置較小的光伏(fu)發(fa)電供(gong)(gong)電系(xi)(xi)統(tong),以滿(man)足(zu)特定(ding)用(yong)(yong)戶(hu)的需求,支持現(xian)存配電網的經濟運行,或者同時滿(man)足(zu)這兩(liang)個方面的要(yao)求。
分布式光(guang)伏(fu)(fu)發電(dian)系統的基本設備(bei)包括光(guang)伏(fu)(fu)電(dian)池組(zu)件、光(guang)伏(fu)(fu)方陣支架、直流(liu)匯流(liu)箱、直流(liu)配電(dian)柜(ju)、并(bing)網逆(ni)(ni)變器、交(jiao)流(liu)配電(dian)柜(ju)等設備(bei),另外還有(you)供(gong)電(dian)系統監(jian)控裝置和環(huan)境監(jian)測裝置。其運行模式是在有(you)太陽輻射的條件下,光(guang)伏(fu)(fu)發電(dian)系統的太陽能電(dian)池組(zu)件陣列將太陽能轉換輸出的電(dian)能,經過(guo)直流(liu)匯流(liu)箱集中送(song)入直流(liu)配電(dian)柜(ju),由(you)并(bing)網逆(ni)(ni)變器逆(ni)(ni)變成交(jiao)流(liu)電(dian)供(gong)給建筑自(zi)身負(fu)載,多(duo)余或不足的電(dian)力(li)通過(guo)聯接電(dian)網來調節。
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