INNOMEDIALOGIC S007-155-SMF-1024-CPX007-FR ARTEMUX ATM-STM1/0C3S VMEBUS MODULE
磁密分布圖本文稀土磁同步發(fā)電機(jī)的設(shè)計(jì),通過AN~SYS進(jìn)行電機(jī)電磁場(chǎng)數(shù)值計(jì)算,很地完成了設(shè)3.2運(yùn)行處理這階段包括:網(wǎng)格剖分、設(shè)定電樞、加邊計(jì)任務(wù),滿足了電機(jī)電壓變化率土2 7.的要求。樣磁場(chǎng)強(qiáng)度分布圖磁力線圖機(jī)測(cè)試空載輸出電壓和負(fù)載輸出電壓如、8所示。圖中空載相電壓分別是33.4V、32.73V、32.8V.負(fù)載相電壓分別是33.42V、32.95V、負(fù)載電壓波形圖ANSYS通用有限元分析軟件,具有強(qiáng)的前后處理功能和較高的分析度,并且使用方便,常用于結(jié)構(gòu)和傳熱方面的分析,在電磁場(chǎng)分析方面也能取得很的應(yīng)用。

電。風(fēng)力發(fā)電機(jī)的風(fēng)輪機(jī)多采用水平軸、三葉片結(jié)構(gòu)。葉片的直徑隨單機(jī)容量的增大而加長(zhǎng)目前上大的旋轉(zhuǎn)葉片的直徑達(dá)66m,培架高度達(dá)80m6.功率調(diào)節(jié)是風(fēng)輪機(jī)的關(guān)鍵技術(shù)之,目前投入運(yùn)行的機(jī)組主要有2類功率調(diào)節(jié)方式:類是定漿距失速控制;另類是變漿距控制。大部分風(fēng)力發(fā)電機(jī)都有風(fēng)向機(jī)構(gòu),自動(dòng)使風(fēng)輪機(jī)處于迎風(fēng)狀態(tài)。隨著技術(shù)的發(fā)展已出現(xiàn)了濃縮風(fēng)能型風(fēng)力發(fā)電機(jī)迎風(fēng)及限速自動(dòng)控制系統(tǒng)等新型風(fēng)力發(fā)電機(jī)系統(tǒng)7. 2.3.風(fēng)力發(fā)電機(jī)類型按照風(fēng)輪發(fā)電機(jī)轉(zhuǎn)速是否恒定,風(fēng)力發(fā)電可分為定轉(zhuǎn)速運(yùn)行與可變速運(yùn)行2種方式;按照發(fā)電機(jī)的結(jié)構(gòu)區(qū)分,有異步發(fā)電機(jī)、同步發(fā)電機(jī)、磁式發(fā)電機(jī)、無刷雙饋發(fā)電機(jī)和開關(guān)磁阻發(fā)電機(jī)等機(jī)型。早期的風(fēng)力發(fā)電機(jī)大多采用附帶增速裝置的異步發(fā)電機(jī)。異步發(fā)電機(jī)結(jié)構(gòu)簡(jiǎn)單發(fā)出的工頻交流電可直接使用或經(jīng)變壓器輸入電網(wǎng)。多數(shù)情況下異步風(fēng)力發(fā)電機(jī)定速旋轉(zhuǎn)線式異步電機(jī)可通過在轉(zhuǎn)子接入可變電阻實(shí)現(xiàn)低頻勵(lì)磁來調(diào)節(jié)轉(zhuǎn)矩大小,也可以變速運(yùn)行。因?yàn)橐獜碾娋W(wǎng)獲得勵(lì)磁電流,所以異步風(fēng)力發(fā)電般不能脫離電網(wǎng)單獨(dú)運(yùn)行,除非用某種方式獲得勵(lì)磁。
廈門興銳達(dá)自動(dòng)化設(shè)備有限公司
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