總結分析:分布式電源技術並網運行的相關問題
發布時間:2016-01-08 責任編輯:echolady
【導讀】在我國已經逐漸普及了分布式電源技術,尤其是在醫院、信(xin)息(xi)中(zhong)心(xin)等(deng)場(chang)所(suo),分(fen)布(bu)式(shi)電(dian)源(yuan)技(ji)術(shu)能(neng)夠(gou)快(kuai)速(su)及(ji)時(shi)的(de)應(ying)對(dui)緊(jin)急(ji)狀(zhuang)況(kuang),但(dan)是(shi)分(fen)布(bu)式(shi)電(dian)源(yuan)技(ji)術(shu)仍(reng)然(ran)在(zai)於(yu)配(pei)電(dian)網(wang)絡(luo)並(bing)網(wang)運(yun)行(xing)過(guo)程(cheng)中(zhong)出(chu)現(xian)各(ge)種(zhong)問(wen)題(ti),遇(yu)到(dao)這(zhe)種(zhong)情(qing)況(kuang)就(jiu)需(xu)要(yao)工(gong)程(cheng)師(shi)及(ji)時(shi)的(de)排(pai)除(chu)故(gu)障(zhang)。文(wen)本(ben)就(jiu)針(zhen)對(dui)分(fen)布(bu)式(shi)電(dian)源(yuan)技(ji)術(shu)並(bing)網(wang)運(yun)行(xing)過(guo)程(cheng)彙(hui)總(zong)出(chu)現(xian)的(de)問(wen)題(ti)進(jin)行(xing)總(zong)結(jie)和(he)分(fen)析(xi)。
電能質量問題
在zai分fen布bu式shi電dian源yuan技ji術shu的de實shi際ji應ying用yong過guo程cheng中zhong,由you於yu分fen布bu式shi電dian源yuan通tong常chang都dou是shi由you用yong戶hu來lai控kong製zhi的de,因yin此ci將jiang根gen據ju其qi自zi身shen的de需xu要yao起qi動dong和he停ting運yun,這zhe可ke能neng使shi配pei電dian網wang的de電dian壓ya常chang常chang發fa生sheng波bo動dong。然ran而er,在zai實shi際ji的de的de頻pin繁fan起qi動dong會hui使shi配pei電dian線xian路lu上shang的de負fu荷he潮chao流liu變bian化hua大da,從cong而er加jia大da電dian壓ya調tiao整zheng的de難nan度du,調tiao節jie不bu好hao會hui使shi電dian壓ya超chao標biao。未wei來lai的de分fen布bu式shi電dian源yuan可ke能neng大da量liang采cai用yong電dian力li電dian子zi型xing電dian源yuan,電dian壓ya的de調tiao節jie和he控kong製zhi方fang式shi與yu常chang規gui方fang式shi會hui有you很hen大da不bu同tong,需xu要yao相xiang應ying的de控kong製zhi策ce略lve和he手shou段duan與yu其qi配pei合he。
對於分布式電源應用過程中出現電壓驟降的情況,在該種情況下是否還有用主要取決於它的安裝位置、容rong量liang大da小xiao等deng,一yi般ban而er言yan,分fen布bu式shi電dian源yuan對dui其qi安an裝zhuang母mu線xian處chu的de電dian壓ya驟zhou降jiang可ke能neng有you助zhu,對dui遠yuan方fang母mu線xian處chu的de電dian壓ya驟zhou降jiang可ke能neng無wu助zhu。當dang分fen布bu式shi電dian源yuan切qie換huan成cheng孤gu島dao方fang式shi運yun行xing時shi,如ru無wu儲chu能neng元yuan件jian或huo其qi能neng量liang太tai小xiao,就jiu易yi使shi用yong戶hu負fu荷he發fa生sheng電dian壓ya閃shan變bian。此ci外wai,電dian力li電dian子zi型xing的de分fen布bu式shi電dian源yuan易yi產chan生sheng諧xie波bo,造zao成cheng諧xie波bo汙wu染ran。
對繼電保護的影響問題
fenbushidianyuanjishuyingyongzhong,haiyouyizhongguzhangwentishichangchangchuxiande,najiushiyujidianbaohuchanshengchongtu。youyupeidianwangzhongdaliangdejidianbaohuzhuangzhizaoyicunzai,bukenengweilexinzengdeerzuodalianggaidong,fenbushidianyuanbixuyuzhipeihebingshiyingta。dangpeidianwangdejidianbaohuzhuangzhijuyouzhonghezhagongnengshi,zedangpeidianwangxitongguzhangshi,fenbushidianyuandeqiechubixuzaoyuzhongheshijian,fouzehuiyinqidianhudezhongran,shizhonghezhabuchenggong。
dangfenbushidianyuandegonglvzhurudianwangshi,zheyiwaizaigonglvdezhurucaozuohuishiyuanlaidejidianqibaohuqusuoxiao,congeryingxiangjidianbaohuzhuangzhizhengchanggongzuo。ruyuanpeidianwangjidianqibujubeifangxiangminganxingneng,zedangqitabinglianfenzhiguzhangshi,huiyinqianzhuangyoudianyuandefenzhishangjidianqidewudong,zaochenggaiwuguzhangfenzhishiquzhudianyuan。
鐵磁諧振問題
分布式電源技術在醫院、信息中心等場合進行應用時,鐵磁諧振的問題也同樣是需要工程師特別注意的。當分布式電源通過變壓器、電纜線路、kaiguandengyupeidianwangxianglianshi,yidanpeidianwangfashengguzhang,rudanxiangduididuanlu,erxitongcekaiguanduankaishi,fenbushidianyuancekaiguanyehuiduankai,jiarucishifenbushidianyuandebianyaqiweijiefuhe,bianyaqidediankangyudianlandedadianrongkenengfashengtiecixiezhenerzaochengguodianya,haikenengyinqidadediancili,shibianyaqifachuzaoshenghuoshibianyaqisunhuai。
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