第(di)一,光(guang)伏升壓變壓器的工作(zuo)原理
光(guang)伏升(sheng)(sheng)壓(ya)變(bian)壓(ya)器是一(yi)種電(dian)(dian)(dian)力轉(zhuan)換設備,其主要功(gong)能是實現不(bu)同電(dian)(dian)(dian)壓(ya)等級之間的(de)(de)(de)電(dian)(dian)(dian)能轉(zhuan)換。在光(guang)伏發(fa)電(dian)(dian)(dian)系統中(zhong),光(guang)伏電(dian)(dian)(dian)池片(pian)所產生的(de)(de)(de)直流(liu)電(dian)(dian)(dian)需要升(sheng)(sheng)壓(ya)為與(yu)電(dian)(dian)(dian)網相匹配的(de)(de)(de)交流(liu)電(dian)(dian)(dian),并滿(man)足電(dian)(dian)(dian)網對輸出功(gong)率的(de)(de)(de)要求。因此,光(guang)伏升(sheng)(sheng)壓(ya)變(bian)壓(ya)器扮(ban)演著(zhu)一(yi)個不(bu)可或(huo)缺(que)的(de)(de)(de)角色。它們(men)在光(guang)伏箱變(bian)中(zhong)起到(dao)核心的(de)(de)(de)作用(yong)!
事實上(shang),很多人說的變(bian)壓(ya)(ya)(ya)器(qi)(qi)往往需要的是箱式變(bian)壓(ya)(ya)(ya)器(qi)(qi),也(ye)就(jiu)是箱變(bian);而光(guang)(guang)(guang)伏(fu)變(bian)壓(ya)(ya)(ya)器(qi)(qi),往往需求的是光(guang)(guang)(guang)伏(fu)升壓(ya)(ya)(ya)箱變(bian)。光(guang)(guang)(guang)伏(fu)升壓(ya)(ya)(ya)變(bian)壓(ya)(ya)(ya)器(qi)(qi)的電路結構可以分為兩部分:輸入端和(he)輸出(chu)(chu)端。輸入端連(lian)接(jie)光(guang)(guang)(guang)伏(fu)電池(chi)板產(chan)生的低(di)電壓(ya)(ya)(ya)直流電,而輸出(chu)(chu)端則連(lian)接(jie)高(gao)壓(ya)(ya)(ya)交(jiao)流電。通(tong)過(guo)使用磁耦合裝置實現(xian)電能(neng)傳遞,使得光(guang)(guang)(guang)伏(fu)升壓(ya)(ya)(ya)變(bian)壓(ya)(ya)(ya)器(qi)(qi)能(neng)夠實現(xian)直流電到交(jiao)流電的轉換以及升壓(ya)(ya)(ya)變(bian)壓(ya)(ya)(ya)功能(neng)。
第二,光伏(fu)升壓(ya)變壓(ya)器的應(ying)用(yong)場(chang)景
由于光(guang)(guang)伏(fu)(fu)發(fa)電(dian)系統經常(chang)面臨著電(dian)壓(ya)(ya)波動和電(dian)能(neng)質量問題,所(suo)以(yi)光(guang)(guang)伏(fu)(fu)升(sheng)壓(ya)(ya)變(bian)壓(ya)(ya)器(qi)的使(shi)用是非常(chang)普遍(bian)的。在(zai)大(da)型光(guang)(guang)伏(fu)(fu)電(dian)站中,通常(chang)會采用高效、穩(wen)定(ding)的光(guang)(guang)伏(fu)(fu)升(sheng)壓(ya)(ya)變(bian)壓(ya)(ya)器(qi),以(yi)確保系統輸出的穩(wen)定(ding)性和安全(quan)性。同時,在(zai)分(fen)布(bu)式光(guang)(guang)伏(fu)(fu)發(fa)電(dian)系統中,也(ye)會需要升(sheng)壓(ya)(ya)變(bian)壓(ya)(ya)器(qi)將直流(liu)電(dian)轉換為交流(liu)電(dian),并通過電(dian)網進行輸送。
第(di)三(san),光(guang)伏(fu)升壓變壓器的優勢:
1.可以實(shi)現(xian)電壓等級的(de)匹配:光伏升壓變壓器可以將不(bu)同電壓等級之(zhi)間的(de)電能進行(xing)有效轉換和(he)傳遞(di),實(shi)現(xian)電能匹配。
2.具有較高的(de)工(gong)作效率(lv):光伏升壓變(bian)壓器的(de)設計與(yu)制造精度較高,能夠保證電能轉換(huan)的(de)高效率(lv)。
3.可以提高光伏(fu)發電系(xi)(xi)統(tong)的(de)穩定性(xing)(xing):光伏(fu)升(sheng)壓變壓器能夠幫(bang)助光伏(fu)發電系(xi)(xi)統(tong)抵(di)御電網波(bo)動,提高系(xi)(xi)統(tong)的(de)穩定性(xing)(xing)安(an)全性(xing)(xing)。
可見光(guang)伏升壓變壓器在光(guang)伏發(fa)電(dian)(dian)中起到了(le)至(zhi)關重要的作用。通過升壓變壓功能,使得直流電(dian)(dian)能夠(gou)被(bei)有效(xiao)轉換和(he)傳遞(di),實現電(dian)(dian)能匹(pi)配和(he)輸送。因(yin)此,合理地選擇和(he)使用光(guang)伏升壓變壓器可以(yi)提高光(guang)伏發(fa)電(dian)(dian)系統的整(zheng)體效(xiao)率和(he)質(zhi)量。