基于自适应观测器的永磁同步电机多源扰动抑制方法
By employing non-singular coordinate transformation and adaptive observer technology, the problem of unknown frequency of multi-source disturbances in permanent magnet synchronous motor drive systems was solved. Real-time estimation and compensation of constant disturbances and multi-frequency unknown periodic disturbances were achieved, thereby improving the system's vibration suppression capability and control performance.
CN121193151BActive Publication Date: 2026-07-17CENT SOUTH UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2025-10-21
- Publication Date
- 2026-07-17
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Figure CN121193151B_ABST
Abstract
本发明公开了基于自适应观测器的永磁同步电机多源扰动抑制方法。首先通过设计一种非奇异坐标变换重构了多源扰动模型，消除未知扰动频率与待估计状态之间的耦合。并在此基础上，结合虚拟不变流形技术设计了自适应观测器，其能够在线估计系统中的常值扰动以及多频未知周期扰动分量。最后将观测器实时估计出的复合扰动信号作为前馈补偿项注入到系统的控制器中，从而实现对多频扰动的抑制。本发明无需预先获知扰动的精确频率和幅值信息，能够同时有效处理多个周期扰动和常值扰动，有效拓展了永磁同步电机驱动系统在多源扰动环境下的适应范围。
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