Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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永磁同步電機高精度線性霍爾檢測技術研究

來源:電工電氣發(fā)布時間:2023-10-17 14:17 瀏覽次數:216

永磁同步電機高精度線性霍爾檢測技術研究

喬海,高云鵬,陳進華,張馳,李榮,舒鑫東
(中國科學院寧波材料技術與工程研究所,浙江 寧波 315201)
 
    摘 要:永磁同步電機轉子位置檢測在高精度伺服驅動系統(tǒng)中具有至關重要的作用。針對傳統(tǒng)伺服電機位置檢測時依賴于成本較高、可靠性低的光柵、磁柵等編碼器,提出采用兩組線性霍爾檢測轉子磁鋼的方式,利用可編程邏輯器件(CPLD)實現電機位置檢測,包括拉依達準則算法濾波、算數平均濾波、數據補償技術,提高電機位置檢測精度及系統(tǒng)可靠性。經實驗驗證,相比常規(guī)的位置檢測電機磁鋼的方式,電機速度波動降低75%。
    關鍵詞: 永磁同步電機;線性霍爾;可編程邏輯器件;拉依達準則
    中圖分類號:TM351     文獻標識碼:A     文章編號:1007-3175(2023)09-0047-05
 
High-Precision Linear Hall Detection Technology for Permanent
Magnet Synchronous Motors
 
QIAO Hai, GAO Yun-peng, CHEN Jin-hua, ZHANG Chi, LI Rong, SHU Xin-dong
(Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China)
 
    Abstract: The rotor position detection of permanent magnet synchronous motors is essential in high-precision servo drive systems. The traditional servo motor position detection depends on the grating, magnetic grid and other encoders with high cost and low reliability. This paper proposes a method of mover detecting permanent magnets of rotors by using two sets of linear Hall. It uses Computer Programmable Logic Device (CPLD) to realize motor position detection, including pauta criterion filtering, arithmetic average filtering, and data compensation techniques, which improves the accuracy of the motor position detection and the reliability of the system. The experimental results show that the motor speed fluctuation is reduced by 75% compared with the conventional position detection method.
    Key words: permanent magnet synchronous motor; linear Hall; computer programmable logic device ; pauta criterion
 
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