https://scholars.lib.ntu.edu.tw/handle/123456789/599013
標題: | High-Resolution Permanent Magnet Drive Using Separated Observers for Acceleration Estimation and Control | 作者: | Lin Y.-J Chou P.-H Yang S.-C. SHIH-CHIN YANG |
關鍵字: | Acceleration control and estimation;Disturbance rejection;PM motor system;Acceleration;Acceleration control;Electric drives;Electric motors;Frequency estimation;Interpolation;Motion control;Permanent magnets;Printed circuit boards;Signal encoding;Transient analysis;Acceleration estimation;High resolution;Manufacturing process;Motor systems;Permanent magnet motor;Permanent magnet motor system;Permanent-magnet motor drives;Printed circuit board manufacturing;Steady state errors | 公開日期: | 2022 | 卷: | 22 | 期: | 3 | 來源出版物: | Sensors | 摘要: | This paper proposes a high-resolution permanent magnet (PM) motor drive based on acceleration estimation and control. The PM motor is widely implemented in the printed circuit board (PCB) manufacturing process. To achieve the demanded 1 μm drilling resolution, a sine/cosine incremental encoder is usually installed for motion control. In this paper, several improvements are developed to increase the motion control steady-state accuracy balancing transient response. First, the interpolation of every two encoder counts is proposed to increase the position sensing resolu-tion. In this case, the transient response is improved through the high-resolution position feedback. Second, a closed-loop observer with two independent bandwidths is proposed for acceleration es-timation. By using the interpolated position for acceleration estimation, the vibration-reflected high-frequency torque harmonics can be compensated through the acceleration closed-loop control. It reduces the steady-state error under the same sensing hardware. According to experimental results, both transient response and steady-state error can be improved on a PM motor using the proposed position interpolation and acceleration control. ? 2022 by the authors. Licensee MDPI, Basel, Switzerland. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122891312&doi=10.3390%2fs22030725&partnerID=40&md5=5551fc0eb23eb1bc9631cabc3c9eaefe https://scholars.lib.ntu.edu.tw/handle/123456789/599013 |
ISSN: | 14248220 | DOI: | 10.3390/s22030725 |
顯示於: | 機械工程學系 |
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