重庆理工大学学报2025，Vol.39Issue(1)：47-54,8.DOI:10.3969/j.issn.1674-8425(z).2025.01.006
双三相永磁同步电机改进型自适应增益SMO无传感器研究
Research on sensorless control of DTP-PMSM with improved adaptive gain SMO
摘要
Abstract
To address the high-frequency chattering and signal distortion when traditional SMO and low-pass filters are used with dual three-phase permanent magnet synchronous motors,we consider the inductive coupling between the two sets of windings in DTP-PMSM.We propose an improved sensorless control algorithm based on an adaptive gain SMO.The algorithm,derived from the vector space decoupling mathematical model of DTP-PMSM,adaptively adjusts the sliding mode gain according to current-related variables.It increases the sliding mode gain when the state variables are far from the sliding surface to accelerate the convergence of the SMO.It decreases the gain near the sliding surface to reduce high-frequency chattering.Our simulation results demonstrate our algorithm enhances the accuracy and convergence speed of rotor speed estimation.For a reference speed of 100 r/min,the steady-state speed estimation error is reduced from±2 r/min to±0.5 r/min.At 200 r/min,the error is down from±6 r/min to±0.5 r/min,with the observer convergence time cut from 0.04 s to 0.02 s.Our research may provide a new approach to sensorless control technology in DTP-PMSM,effectively addressing the high-frequency chattering caused by inductive coupling between the two windings.Thus,it holds significant theoretical and practical values.关键词
DTP-PMSM/滑模观测器/自适应增益/收敛速度/电感耦合Key words
DTP-PMSM/SMO/adaptive gain/convergence speed/inductive coupling分类
计算机与自动化引用本文复制引用
白温毓,蔡君阳,匡云,徐执仲,马志敏,华夏..双三相永磁同步电机改进型自适应增益SMO无传感器研究[J].重庆理工大学学报,2025,39(1):47-54,8.基金项目
国家自然科学基金项目(52105127) （52105127）
浙江省自然科学基金项目(LGG22E050025) （LGG22E050025）
