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儲能系統電源端口浪涌防護保護方案詳解,超齊全

發表日(ri)期:2023-04-07瀏覽:943

儲能(neng)(neng)是電力(li)生產過程“采-發-輸-配-用(yong)-儲”六大環節中一個重要組成部分。儲能(neng)(neng)系(xi)統可以(yi)實(shi)現能(neng)(neng)量(liang)搬移,促(cu)進新能(neng)(neng)源的應用(yong);可以(yi)建(jian)立(li)微電網(wang),為無電地(di)區提(ti)供電力(li);可以(yi)調峰(feng)調頻(pin),提(ti)高電力(li)系(xi)統運行穩(wen)定性(xing)。儲能(neng)(neng)系(xi)統對(dui)智能(neng)(neng)電網(wang)的建(jian)設具(ju)有(you)重大的戰略意義。

儲能系統節點圖.png

電(dian)能(neng)(neng)儲存的(de)方式有:電(dian)池型(xing)儲能(neng)(neng)、電(dian)感器(qi)型(xing)儲能(neng)(neng)、電(dian)容器(qi)型(xing)儲能(neng)(neng)及其他類型(xing)儲能(neng)(neng)。

電(dian)池儲能系(xi)統(Battery Energy Storage System,簡稱BESS)是(shi)一個(ge)利用采鋰電(dian)池/鉛電(dian)池作(zuo)為能量儲存載體,一定時間(jian)內存儲電(dian)能和一定時間(jian)內供應電(dian)能的系(xi)統,而且提(ti)供的電(dian)能具有平滑過渡、削峰(feng)填谷、調頻調壓等(deng)功能。

由于(yu)電(dian)池(chi)儲(chu)能(neng)(neng)具有技術(shu)相對(dui)成(cheng)熟、容(rong)量大、安全可(ke)靠、噪聲(sheng)低、環境適應性強、便于(yu)安裝等優點,所以儲(chu)能(neng)(neng)系(xi)統(tong)(tong)常用電(dian)池(chi)來儲(chu)存電(dian)能(neng)(neng)。目前儲(chu)能(neng)(neng)系(xi)統(tong)(tong)主要由儲(chu)能(neng)(neng)單(dan)(dan)元(yuan)(yuan)和監控(kong)(kong)(kong)與(yu)調度管(guan)(guan)理(li)(li)單(dan)(dan)元(yuan)(yuan)組(zu)成(cheng),儲(chu)能(neng)(neng)單(dan)(dan)元(yuan)(yuan)包含儲(chu)能(neng)(neng)電(dian)池(chi)組(zu)(BA)、電(dian)池(chi)管(guan)(guan)理(li)(li)系(xi)統(tong)(tong)(BMS)、儲(chu)能(neng)(neng)變流器(PCS)等;監控(kong)(kong)(kong)與(yu)調度管(guan)(guan)理(li)(li)單(dan)(dan)元(yuan)(yuan)包括中央控(kong)(kong)(kong)制系(xi)統(tong)(tong)(MGCC)、能(neng)(neng)量管(guan)(guan)理(li)(li)系(xi)統(tong)(tong)(EMS)等。接(jie)下(xia)來TVS二極(ji)管(guan)(guan)廠家東沃電(dian)子(DOWOSEMI)從儲(chu)能(neng)(neng)系(xi)統(tong)(tong)電(dian)源(yuan)端口(kou)(從機電(dian)源(yuan)輸入口(kou)、電(dian)池(chi)管(guan)(guan)理(li)(li)系(xi)統(tong)(tong)BMS對(dui)外輸出電(dian)源(yuan)接(jie)口(kou)、充放電(dian)回路接(jie)口(kou)、高低邊驅動(dong)電(dian)源(yuan)輸入接(jie)口(kou)、DO數字輸出接(jie)口(kou)、DO接(jie)點輸出接(jie)口(kou))為您科普其保(bao)護防(fang)護方案。

1)從機電源(yuan)輸入口防護方案圖(tu)

儲能系統從機電源輸入口防護方案圖.jpg

儲能系統為從機供電(dian)接(jie)口中,由于(yu)供電(dian)環境(jing)或(huo)接(jie)口的(de)(de)變化會(hui)帶來一些(xie)瞬時脈沖(chong),故需對輸入端口做浪涌保(bao)護,保(bao)障后級電(dian)路的(de)(de)工作安全(quan),保(bao)證控制系統的(de)(de)穩定性。同(tong)時,可利用(yong)TVS二極(ji)管(guan)實現防反(fan)接(jie)功能,推(tui)薦選用(yong)東沃(wo)電(dian)子TVS二極(ji)管(guan)SMCJ85CA,適(shi)用(yong)于(yu)電(dian)壓(ya)小于(yu)70V的(de)(de)電(dian)池(chi)pack,其峰值脈沖(chong)功率(lv)為1500W,反(fan)向關態電(dian)壓(ya)值85V,電(dian)壓(ya)誤(wu)差控制在5%上下,響(xiang)應速度ps級,優良(liang)的(de)(de)電(dian)壓(ya)箝位(wei)能力,低漏電(dian)流,玻(bo)璃鈍化結,高可靠性,小尺寸SMC/DO-214AB封(feng)裝(zhuang)。

2)電池(chi)管理(li)系統(BMS)對外輸出(chu)電源接口防護(hu)方(fang)案圖(tu)

儲能系統BMS對外輸出電源接口防護方案圖.jpg

同樣,電(dian)池管理系統(BMS)對(dui)外(wai)輸出電(dian)源(yuan)接口(kou)也需要提供浪涌保護,保障后續電(dian)壓安全(quan)穩定,推(tui)薦選用東沃(wo)電(dian)子TVS二極管SMBJ15CA,其峰(feng)值(zhi)脈沖(chong)功率為600W,反向(xiang)關態電(dian)壓值(zhi)15V,具有(you)低箝位(wei)能力,低漏電(dian)流特(te)點(dian),采用SMB/DO-214AA封(feng)裝。

3)充(chong)放電回(hui)路接口防護(hu)方(fang)案圖

儲能系統充放電回路接口防護方案圖.jpg

電池管理系統(BMS)充放電回路中MOS管, 開關瞬間電流的突變而產生漏極尖峰電壓,進而損壞MOS管,功率管開關速度越快,產生的過電壓也就越高。為了防止器件損壞,需增加大功率的TVS瞬態抑制二極管。推薦選用東沃電子TVS二極管SMCJ85CA,適用于電壓小于70V的電池pack,其峰值脈沖功率為1500W,反向關態電壓值85V,電壓誤差控制在5%上下,響應速度ps級,優良的電壓箝位能力,低漏電流,玻璃鈍化結,高可靠性,小尺寸SMC/DO-214AB封裝。

4)高低邊(bian)驅動電(dian)源輸(shu)入(ru)接口(kou)保護方案圖

儲能系統高低邊驅動電源輸入接口保護方案圖.jpg

儲能系(xi)統(tong)(tong)為(wei)高低(di)邊驅(qu)動(dong)電(dian)(dian)(dian)(dian)路(lu)(lu)提供電(dian)(dian)(dian)(dian)源接(jie)口中(zhong),通常(chang)輸入電(dian)(dian)(dian)(dian)壓范圍在9~32V之間,為(wei)保(bao)障后級功率(lv)MOS驅(qu)動(dong)電(dian)(dian)(dian)(dian)路(lu)(lu)的工作(zuo)安全(quan),需對電(dian)(dian)(dian)(dian)源輸入端口做(zuo)浪涌保(bao)護(hu),保(bao)證控制(zhi)系(xi)統(tong)(tong)的穩(wen)定性(xing)。推(tui)薦選用(yong)東沃(wo)電(dian)(dian)(dian)(dian)子TVS二極管(guan)5.0SMDJ33CA,其峰值(zhi)脈沖功率(lv)為(wei)5000W,反向關態(tai)電(dian)(dian)(dian)(dian)壓值(zhi)33V,具(ju)有低(di)箝位能力,低(di)漏電(dian)(dian)(dian)(dian)流(liu)特點,采(cai)用(yong)SMC/DO-214AB封裝。

5)DO數字輸出(chu)接口防(fang)護方案(an)圖(tu)

儲能系統DO數字輸出接口防護方案圖.jpg

數字(zi)輸(shu)出接口(kou)電(dian)(dian)(dian)(dian)路中,輸(shu)入電(dian)(dian)(dian)(dian)壓最大32V。對輸(shu)入端口(kou)的浪涌保護,推薦選用(yong)東沃(wo)電(dian)(dian)(dian)(dian)子TVS二極管SMAJ36CA,其峰值脈(mo)沖功率(lv)為400W,反向關態電(dian)(dian)(dian)(dian)壓值36V,具有低(di)箝位能力,低(di)漏電(dian)(dian)(dian)(dian)流特點(dian),采(cai)用(yong)SMA/DO-214AC封(feng)裝。

6)DO接點(dian)輸出接口保(bao)護(hu)方案圖(tu)

儲能系統DO接點輸出接口防護方案圖.jpg

數字(zi)輸出節點電(dian)路中,為保護后級電(dian)路的(de)工作安(an)全,保證控制系統的(de)穩(wen)定(ding)性。推薦選用(yong)東沃電(dian)子TVS二極管SMAJ36CA,其峰(feng)值(zhi)脈沖(chong)功率為400W,反向關態電(dian)壓值(zhi)36V,具有低箝(qian)位能(neng)力,低漏(lou)電(dian)流(liu)特點,采用(yong)SMA/DO-214AC封裝。

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