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汽車用永磁無刷直流電機(jī)無位置傳感器技術(shù)研究

2016-09-30 01:22榮軍李一鳴萬軍華張敏陳曦
關(guān)鍵詞:榮軍陳曦張敏

榮軍+李一鳴+萬軍華+張敏+陳曦

摘 要:研究一種汽車用永磁無刷直流電機(jī)無位置傳感器控制技術(shù)-反電動(dòng)勢(shì)三次諧波檢測(cè)法,它是利用定子反電動(dòng)勢(shì)三次諧波積分的方法來估算轉(zhuǎn)子的位置。具體工作過程就是把電樞三相電壓進(jìn)行疊加,然后從中提取出反電動(dòng)勢(shì)的三次諧波分量,通過選擇其積分過零點(diǎn)為電機(jī)的三相逆變電路的換相點(diǎn)。最后通過實(shí)驗(yàn)表明其與理論分析完全一致,為其在實(shí)際應(yīng)用提出一種新的方法。endprint

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