基于線反電動勢的高速磁懸浮無刷直流電機無位置換相策略
發(fā)布時間:2018-11-07 12:10
【摘要】:針對大功率高速磁懸浮無刷直流電機電磁干擾大的問題,采用基于線反電動勢深度低通濾波的無位置傳感器控制,分析了導致高速電機換相信號不準確的原因,明確了相電流與器件電阻、器件直流壓降的關系,給出換相信號不準確時相電流的精確表達式。針對高速磁懸浮電機轉速帶寬高帶來的換相信號不準確問題,提出一種基于‘90?α’與‘150?α’最優(yōu)滯環(huán)切換的換相信號補償策略,以電機切換前后的電流脈動最小為原則,確定了最優(yōu)滯環(huán)寬度。通過試驗,電機平穩(wěn)運行到最高32 000r/min,不僅實現了兩種電機換相策略的平滑切換,而且對換相信號誤差進行了有效補償。
[Abstract]:Aiming at the problem of large electromagnetic interference of high power and high speed magnetic levitation brushless DC motor, the sensorless control based on linear backEMF depth low pass filter is adopted, and the reasons leading to the inaccuracy of the replacement number of high speed motor are analyzed. The relationship between phase current, device resistance and DC voltage drop is clarified, and the exact expression of phase current when the conversion signal is not accurate is given. In order to solve the problem of inaccurate commutation signal caused by high speed bandwidth of high speed maglev motor, a compensation strategy based on'90? 偽 'and' 150? 偽 'optimal hysteresis switching is proposed. Based on the principle of minimum current pulsation before and after switching, the optimal hysteresis width is determined. The experiment shows that the motor runs smoothly to a maximum of 32 000 r / min, which not only realizes the smooth switching of the two commutation strategies, but also effectively compensates the error of the commutation signal.
【作者單位】: 北京航空航天大學慣性技術重點實驗室;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;
【基金】:國家重大科學儀器設備開發(fā)專項(2012YQ040235) 國家自然科學基金(61203203)資助項目
【分類號】:TM33
[Abstract]:Aiming at the problem of large electromagnetic interference of high power and high speed magnetic levitation brushless DC motor, the sensorless control based on linear backEMF depth low pass filter is adopted, and the reasons leading to the inaccuracy of the replacement number of high speed motor are analyzed. The relationship between phase current, device resistance and DC voltage drop is clarified, and the exact expression of phase current when the conversion signal is not accurate is given. In order to solve the problem of inaccurate commutation signal caused by high speed bandwidth of high speed maglev motor, a compensation strategy based on'90? 偽 'and' 150? 偽 'optimal hysteresis switching is proposed. Based on the principle of minimum current pulsation before and after switching, the optimal hysteresis width is determined. The experiment shows that the motor runs smoothly to a maximum of 32 000 r / min, which not only realizes the smooth switching of the two commutation strategies, but also effectively compensates the error of the commutation signal.
【作者單位】: 北京航空航天大學慣性技術重點實驗室;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;
【基金】:國家重大科學儀器設備開發(fā)專項(2012YQ040235) 國家自然科學基金(61203203)資助項目
【分類號】:TM33
【相似文獻】
相關期刊論文 前10條
1 薛永康;;國際PCI/Motorcon會議概況[J];微電機;1983年03期
2 賀燦花,楊向宇;無刷直流電機無位置傳感器的檢測方法[J];電機電器技術;2005年02期
3 李智,劉錫成;BLDCM位置伺服系統(tǒng)的模糊滑?刂芠J];航空計算技術;2005年02期
4 牛百齊;變頻空調中的無傳感器無刷直流電機控制系統(tǒng)[J];自動化與儀器儀表;2005年05期
5 譚建成;;采用TB9060FN的無刷直流電機無傳感器控制系統(tǒng)[J];電機與控制應用;2006年02期
6 劉軍;李天舒;;無刷直流電機的反電勢法研究[J];日用電器;2006年08期
7 陳永軍;黃聲華;翁惠輝;李俊杰;;基于dsPIC的無刷直流電機調速系統(tǒng)方案[J];電機與控制應用;2006年08期
8 凌禹;張同莊;;一種新型直流電機的理論研究[J];防爆電機;2007年02期
9 楊影;陶生桂;;基于磁鏈函數的無刷直流電機轉子位置檢測法研究[J];變流技術與電力牽引;2007年03期
10 李翔;吳春林;;基于模糊控制的永磁無刷直流電機[J];機電工程;2007年05期
相關會議論文 前10條
1 楊霞;張楊;李卓;;無刷直流電機雙模控制器的實現[A];第十六屆中國小電機技術研討會論文摘要集[C];2011年
2 趙r,
本文編號:2316328
本文鏈接:http://sikaile.net/kejilunwen/dianlilw/2316328.html
教材專著