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風電變流器十大品牌是由CN10排排榜技術研究部門和CNPP品牌數據研究部門聯合重磅推出的風電變流器品牌排行榜,居前十的有:陽光電源SUNGROW禾望hopewind海得新能源日風電氣天誠同創ABB瑞能電氣龍源電氣Vertiv維諦技術東方自控等。榜單由品牌數據研究部門基于大數據統計及人為根據市場和參數條件變化的分析研究專業測評而得出,是大數據、云計算、數據統計真實客觀呈現的結果。名單以企業實力、品牌榮譽、網絡投票、網民口碑打分、企業在行業內的排名情況、企業獲得的榮譽及獎勵情況等為基礎,綜合了多家機構媒體和網站排行數據,通過特定的計算機模型對廣泛的數據資源進行采集分析研究,并由研究人員綜合考慮市場和參數條件變化后最終才形成數據并在網站顯示。
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風電變流器行業簡介

一、風電變流器原理是什么

風電(dian)(dian)變(bian)(bian)流(liu)(liu)(liu)器(qi)(qi)由主電(dian)(dian)路系統(tong)、配電(dian)(dian)系統(tong)以及(ji)控(kong)制系統(tong)構(gou)成,采用三(san)相電(dian)(dian)壓(ya)型(xing)(xing)交(jiao)-直-交(jiao)雙向變(bian)(bian)流(liu)(liu)(liu)器(qi)(qi)技(ji)術(shu),通過對(dui)雙饋(kui)異步風力發電(dian)(dian)機(ji)(ji)的轉子(zi)進(jin)(jin)(jin)行勵磁,使得(de)雙饋(kui)發電(dian)(dian)機(ji)(ji)的定子(zi)側(ce)輸(shu)出電(dian)(dian)壓(ya)的幅值、頻(pin)率和(he)相位與電(dian)(dian)網(wang)(wang)相同,并且可根據需要進(jin)(jin)(jin)行有功和(he)無功的獨立解耦控(kong)制,具體的工作(zuo)原理(li)是(shi)(shi):在直驅型(xing)(xing)風力發電(dian)(dian)系統(tong)中,全(quan)功率變(bian)(bian)流(liu)(liu)(liu)器(qi)(qi)是(shi)(shi)永(yong)磁同步發電(dian)(dian)機(ji)(ji)與電(dian)(dian)網(wang)(wang)之(zhi)間(jian)的橋梁。永(yong)磁同步發電(dian)(dian)機(ji)(ji)發出的交(jiao)流(liu)(liu)(liu)電(dian)(dian)是(shi)(shi)隨著(zhu)風的變(bian)(bian)化而變(bian)(bian)化的,不能直接接入電(dian)(dian)網(wang)(wang)。變(bian)(bian)流(liu)(liu)(liu)器(qi)(qi)的機(ji)(ji)側(ce)對(dui)幅值和(he)頻(pin)率變(bian)(bian)化的交(jiao)流(liu)(liu)(liu)進(jin)(jin)(jin)行PWM整流(liu)(liu)(liu),整流(liu)(liu)(liu)后(hou)的直流(liu)(liu)(liu)經(jing)變(bian)(bian)流(liu)(liu)(liu)器(qi)(qi)的網(wang)(wang)側(ce)進(jin)(jin)(jin)行PWM逆變(bian)(bian),將直流(liu)(liu)(liu)逆變(bian)(bian)成幅值和(he)頻(pin)率穩定的交(jiao)流(liu)(liu)(liu),經(jing)濾(lv)波(bo)器(qi)(qi)、升壓(ya)變(bian)(bian)壓(ya)器(qi)(qi)并入電(dian)(dian)網(wang)(wang)。

二、風電變流器的作用

風電機組利用風力發電,但自然界的風是不穩定的,速度有時大有時小,這種不穩定性決定了風機的轉速是變化的,從而發出的電也是不穩定的,而并網需要50Hz恒定頻率的交流電,為解決這個問題,需要一定的頻率變化手段去配合轉速變化,實現對風電頻率的變頻并轉化為電網交流頻率,這需要利用電力電子技術中的變頻器技術。因此,風電變流器就誕生了,它的作用主要是解決在風機轉速變化的情況下,如何保證發電恒頻輸出的問題。風電變流器根據風速大小適應發電機轉速,使風機實現最佳風能捕獲。它將風機在自然風作用下發出的電壓頻率、幅值不穩定的電能轉換為頻率、幅值穩定、符合電網要求的電能后并入電網。風電變流器在風力發電機組中是很重要的,如果您需要采購風電變流器,一定要選擇一個好的風電變流器品牌

三、風電變流器和變頻器的區別

風(feng)電(dian)變流(liu)(liu)(liu)器(qi)(qi)(qi)(qi)和變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)(qi)相比,硬件基本(ben)相同,主(zhu)要區別在控(kong)制算法和操(cao)縱目的(de)(de),變流(liu)(liu)(liu)器(qi)(qi)(qi)(qi)改變的(de)(de)是電(dian)流(liu)(liu)(liu)(也有幾率(lv)對頻(pin)(pin)(pin)(pin)率(lv)進行更改),變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)(qi)改變的(de)(de)是主(zhu)要頻(pin)(pin)(pin)(pin)率(lv)。變流(liu)(liu)(liu)器(qi)(qi)(qi)(qi)和變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)(qi)之所以稱呼不(bu)同,主(zhu)要在于它們(men)伺服(fu)的(de)(de)對象的(de)(de)特性(xing)不(bu)同。變流(liu)(liu)(liu)器(qi)(qi)(qi)(qi)伺服(fu)的(de)(de)對象是雙(shuang)饋(kui)發電(dian)機(ji),變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)(qi)主(zhu)要是調(diao)節異步電(dian)動機(ji)。一(yi)般(ban)來(lai)說,風(feng)電(dian)變流(liu)(liu)(liu)器(qi)(qi)(qi)(qi)工作(zuo)的(de)(de)環(huan)境溫度范圍(wei)要比普通的(de)(de)變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)(qi)大些,可靠性(xing)也要高(gao)(gao)些,因(yin)為風(feng)力發電(dian)一(yi)般(ban)都是無人值守的(de)(de)24小時運行,還要滿足大電(dian)流(liu)(liu)(liu)運行,因(yin)此要求較高(gao)(gao)。

四、風電變流器一般分為哪幾種

風(feng)電(dian)(dian)(dian)(dian)(dian)變(bian)(bian)(bian)流(liu)(liu)(liu)(liu)(liu)(liu)器(qi)的(de)種(zhong)類主(zhu)要(yao)(yao)有兩種(zhong):1、雙(shuang)饋式(shi)風(feng)電(dian)(dian)(dian)(dian)(dian)變(bian)(bian)(bian)流(liu)(liu)(liu)(liu)(liu)(liu)器(qi):雙(shuang)饋式(shi)變(bian)(bian)(bian)流(liu)(liu)(liu)(liu)(liu)(liu)器(qi)主(zhu)要(yao)(yao)在風(feng)力發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)系統(tong)中配套雙(shuang)饋發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)使用,當風(feng)速(su)變(bian)(bian)(bian)化導致發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)轉速(su)變(bian)(bian)(bian)化時,變(bian)(bian)(bian)流(liu)(liu)(liu)(liu)(liu)(liu)器(qi)通過(guo)控制發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)轉子的(de)勵(li)磁來改變(bian)(bian)(bian)轉子的(de)磁場,使發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)的(de)輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓、頻率(lv)(lv)、幅(fu)值和(he)電(dian)(dian)(dian)(dian)(dian)網(wang)保持一致,從而(er)實現風(feng)電(dian)(dian)(dian)(dian)(dian)系統(tong)的(de)變(bian)(bian)(bian)速(su)恒頻發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)。雙(shuang)饋型風(feng)機(ji)(ji)(ji)變(bian)(bian)(bian)流(liu)(liu)(liu)(liu)(liu)(liu)器(qi)的(de)作用就是為(wei)了生成這個(ge)頻率(lv)(lv)旋(xuan)轉磁場而(er)提(ti)供交(jiao)變(bian)(bian)(bian)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)。在實際運轉過(guo)程啟動(dong)后,風(feng)機(ji)(ji)(ji)發(fa)(fa)出(chu)的(de)電(dian)(dian)(dian)(dian)(dian)能將會(hui)通過(guo)變(bian)(bian)(bian)流(liu)(liu)(liu)(liu)(liu)(liu)器(qi)反(fan)饋給電(dian)(dian)(dian)(dian)(dian)網(wang)(約占風(feng)機(ji)(ji)(ji)總(zong)功率(lv)(lv)的(de)35~40%),此(ci)類型風(feng)機(ji)(ji)(ji)因(yin)(yin)之(zhi)稱為(wei)雙(shuang)饋型風(feng)機(ji)(ji)(ji)。2、全(quan)功率(lv)(lv)式(shi)風(feng)電(dian)(dian)(dian)(dian)(dian)變(bian)(bian)(bian)流(liu)(liu)(liu)(liu)(liu)(liu)器(qi):全(quan)功率(lv)(lv)式(shi)的(de)風(feng)電(dian)(dian)(dian)(dian)(dian)變(bian)(bian)(bian)流(liu)(liu)(liu)(liu)(liu)(liu)器(qi)主(zhu)要(yao)(yao)配套直驅(qu)/半直驅(qu)發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)以及異步發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)使用,由機(ji)(ji)(ji)側(ce)變(bian)(bian)(bian)換器(qi)和(he)網(wang)側(ce)變(bian)(bian)(bian)換器(qi)組成,兩者通過(guo)直流(liu)(liu)(liu)(liu)(liu)(liu)母(mu)線(xian)連接,機(ji)(ji)(ji)側(ce)變(bian)(bian)(bian)換器(qi)實現電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)的(de)變(bian)(bian)(bian)頻調速(su),獲得最(zui)佳的(de)發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)效率(lv)(lv),而(er)網(wang)側(ce)變(bian)(bian)(bian)換器(qi)接入電(dian)(dian)(dian)(dian)(dian)網(wang),提(ti)供優質的(de)電(dian)(dian)(dian)(dian)(dian)能輸(shu)出(chu)。這種(zhong)風(feng)電(dian)(dian)(dian)(dian)(dian)變(bian)(bian)(bian)流(liu)(liu)(liu)(liu)(liu)(liu)器(qi)因(yin)(yin)發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)的(de)全(quan)部(bu)電(dian)(dian)(dian)(dian)(dian)能都通過(guo)變(bian)(bian)(bian)流(liu)(liu)(liu)(liu)(liu)(liu)器(qi)傳輸(shu)到電(dian)(dian)(dian)(dian)(dian)網(wang)側(ce),因(yin)(yin)此(ci)稱為(wei)全(quan)功率(lv)(lv)式(shi)風(feng)電(dian)(dian)(dian)(dian)(dian)變(bian)(bian)(bian)流(liu)(liu)(liu)(liu)(liu)(liu)器(qi)。

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