本文選題：磁懸浮鼓風機 + 無刷直流電機��； 參考：《電機與控制學報》2017年04期

【摘要】：針對高速磁懸浮大功率永磁無刷直流電機無位置傳感器起動問題,分析了高速磁懸浮無刷直流電機運行時導通相磁鏈函數(shù)與相電壓的精確表達式,給出了轉(zhuǎn)子位置和電機磁鏈的函數(shù)方程,分析了高速磁懸浮無刷直流電機低速時轉(zhuǎn)子位置難以檢測的原因。據(jù)此分析提出了一種基于高速電機繞組磁鏈函數(shù)的新型無位置控制G函數(shù)方法,以換相前后非換相相電流幅值等值為控制目標,以G函數(shù)換相閾值為控制量,通過PI調(diào)節(jié)來保證相位可靠校正,實驗驗證了該閉環(huán)校正方法應用于磁懸浮鼓風機無刷直流電機時,在20 000 r/min范圍內(nèi)能夠?qū)Q相信號誤差進行了實時補償,實現(xiàn)全轉(zhuǎn)速運行。
[Abstract]:In view of the sensorless starting problem of high speed magnetic levitation high power permanent magnet brushless DC motor, the exact expressions of the flux function and phase voltage of the conduction phase of the high speed magnetic levitation brushless DC motor are analyzed. The functional equations of rotor position and flux linkage are given, and the reason why the rotor position is difficult to detect at low speed of high speed magnetic levitation brushless DC motor is analyzed. Based on this analysis, a new position free control G function method based on flux chain function of high speed motor winding is proposed. The amplitude equivalent of non commutation current before and after commutation is taken as the control target, and the commutation threshold of G function is taken as the control quantity. The phase reliability correction is ensured by Pi regulation. The experimental results show that the closed-loop correction method is applied to the brushless DC motor of the magnetic suspension blower, and it can compensate the error of the replacement signal in the range of 20 000 r/min, and realize the full speed operation.
【作者單位】： 北京航空航天大學慣性技術國防科技重點實驗室;北京航空航天大學新型慣性儀表與導航系統(tǒng)技術國防重點學科實驗室;北京市高速磁懸浮電機技術及應用工程技術研究中心;
【基金】：國家自然科學基金(61374029);國家自然科學基金(61403015)
【分類號】：TM33

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