关键词: 高速永磁同步电机, 气悬浮压缩机, 位置重构, 学习链, 负载学习, 矢量控制

Abstract: To improve the speed identification accuracy of high-speed permanent magnet synchronous motor, a load injection high fundamental frequency position reconstruction identification strategy and a load learning chain dynamic prediction compensation design method were adopted. The position observer gain matrix and load learning trajectory were constructed, and a load speed torque three closed-loop composite FOC vector control technology was proposed. After adopting the technology, the actual testing unit′s speed error in the full speed range was controlled within 30 r/min, improving the estimation accuracy and high-precision dynamic control ability of the observer, ensuring the high-speed operation, efficient temperature regulation and dehumidification performance of the air suspension compressor air conditioning system.

Key words: high speed permanent magnet synchronous motor(HSPMSM), air suspension compressor, position reconstruction, learning chain, load learning, vector control