基于改进的超扭曲滑动模式观察员和平滑过渡优化,为PMSM提供全速域位置无传感器控制策略
Xia Zhang1, Pengwei Li2, Bo Wang1
1School of Electrical and Information Engineering, Beihua University, Jilin, 132021, China.
Scientific reports
|January 19, 2026
概括
这项研究引入了一种新的无传感器控制算法,用于永久磁同步电机 (PMSM). 它通过将高频内射与改进的滑动模式观察器融合,确保所有速度的平滑过渡.
科学领域:
- 电气工程 电气工程
- 控制系统 控制系统
- 机器人技术 机器人技术 机器人技术
背景情况:
- 永磁同步电机 (PMSM) 的无传感器控制在实现平稳的转速方面面临挑战,特别是从低到中高转速范围.
- 在这些关键的过渡阶段,现有的方法往往在稳定性和准确性方面扎.
- 精确的转子位置和转速估计对于有效的PMSM控制至关重要.
研究的目的:
- 为PMSM开发一个全速范围控制算法,克服平滑速度过渡的局限性.
- 在动态操作条件下提高无传感器控制算法的稳定性和准确性.
- 为了提高PMSM在变速期间的整体性能和稳定性.
主要方法:
- 一个新的算法,将脉冲高频注入 (HFI) 与正方形波融合为低速操作.
- 实施了改进的超扭转滑动模式观察器 (STSMO) 具有可变增益 (VGLSTSMO) 的中高速度.
- 整合了自适应的背向电机力 (背向EMF) 模型和Sine加权切换功能,以实现无过渡.
主要成果:
- 拟议的方法可以在PMSM的整个速度范围内实现平稳和稳定的运行.
- 使用改进的STSMO,转子位置估计误差减少到大约0.2半径.
- 权切换功能有效地促进了低速和中高速域之间的顺过渡.
结论:
- 合并的HFI和改进的STSMO算法为无传感器PMSM控制提供了一个强大的解决方案.
- 开发的方法显著提高了速度转换期间的性能,解决了现场的一个关键挑战.
- 这种方法为实现没有机械传感器的PMSM高性能,全速范围运行提供了有希望的方向.
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