本文選題：磁懸浮鼓風(fēng)機(jī) + 無(wú)刷直流電機(jī)��； 參考：《電機(jī)與控制學(xué)報(bào)》2017年04期

【摘要】：針對(duì)高速磁懸浮大功率永磁無(wú)刷直流電機(jī)無(wú)位置傳感器起動(dòng)問(wèn)題,分析了高速磁懸浮無(wú)刷直流電機(jī)運(yùn)行時(shí)導(dǎo)通相磁鏈函數(shù)與相電壓的精確表達(dá)式,給出了轉(zhuǎn)子位置和電機(jī)磁鏈的函數(shù)方程,分析了高速磁懸浮無(wú)刷直流電機(jī)低速時(shí)轉(zhuǎn)子位置難以檢測(cè)的原因。據(jù)此分析提出了一種基于高速電機(jī)繞組磁鏈函數(shù)的新型無(wú)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(biāo),以G函數(shù)換相閾值為控制量,通過(guò)PI調(diào)節(jié)來(lái)保證相位可靠校正,實(shí)驗(yàn)驗(yàn)證了該閉環(huán)校正方法應(yīng)用于磁懸浮鼓風(fēng)機(jī)無(wú)刷直流電機(jī)時(shí),在20 000 r/min范圍內(nèi)能夠?qū)Q相信號(hào)誤差進(jìn)行了實(shí)時(shí)補(bǔ)償,實(shí)現(xiàn)全轉(zhuǎn)速運(yùn)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(xué)慣性技術(shù)國(guó)防科技重點(diǎn)實(shí)驗(yàn)室;北京航空航天大學(xué)新型慣性?xún)x表與導(dǎo)航系統(tǒng)技術(shù)國(guó)防重點(diǎn)學(xué)科實(shí)驗(yàn)室;北京市高速磁懸浮電機(jī)技術(shù)及應(yīng)用工程技術(shù)研究中心;
【基金】：國(guó)家自然科學(xué)基金(61374029);國(guó)家自然科學(xué)基金(61403015)
【分類(lèi)號(hào)】：TM33

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本文編號(hào)：2065898