Full-Range Robust control of Surface-Mounted Permanent Magnet Synchronous Motor Drives

• Main Authors: Che-Wei Hsu, 許哲維
• Other Authors: Jenn-Horng Liaw
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/30508128607925733332

碩士 === 明新科技大學 === 電機工程研究所 === 97 === Surface-mounted permanent magnet synchronous motors(SMPMSM) has been widely adopted for various applications, such as machine tools, manipulators and robotics. Fast dynamic response and high-efficiency operation are often emphasized on these applications. Therefore, robust performance as well as full utilization of maximum torque capability is the focus of this proposed SMPMSM drive. Basically, the major contributions of this dissertation can be summarized as follows: First, an adaptive speed controller based on Lyapunov theory is proposed to improve the robustness performance of the drive. Second, a novel field-weakening control strategy, which combines the feed-forward torque bound calculator and a closed-loop current command generator, is proposed to achieve minimum copper loss over the entire operation range. Third, a DSP-base digital controller is constructed to implement the proposed control strategy and the corresponding experimental results are given to verify the validity of the proposed strategy.