基于滑模交叉耦合的双永磁电机转速同步控制
Dual-PMSM Speed Synchronization Control Based on Sliding Mode Cross-Coupling Control
李远清 1程善美1
作者信息
- 1. 华中科技大学人工智能与自动化学院,武汉 430074
- 折叠
摘要
为降低双永磁电机在动态过程和扰动情况下的速度同步误差,研究了一种基于电流参考切换和滑模交叉耦合控制的方法.首先,建立了交叉耦合控制下的系统模型,并分析交叉耦合控制的作用机理;通过频域分析证明其能够降低速度同步误差,并给出了交叉耦合控制器参数设计方法;然后,为提升扰动情况下的速度同步误差收敛时间,提出了基于滑模的交叉耦合控制方法;最后,使用电流参考切换解决动态过程中受最大电流限制造成的速度同步性能不佳问题.实验结果表明,基于电流参考切换的滑模交叉耦合控制能够使扰动下速度同步误差收敛更快,同时有效降低动态过程中的速度同步误差.
Abstract
To reduce the speed synchronization error of the dual permanent magnet motors(PMSM)sys-tem during dynamic processes and disturbances,a method based on current reference switching and sliding mode cross-coupling control(SMCCC)is proposed.First,the system model under cross-coupling control(CCC)is established and the mechanism of CCC is analyzed.The capacity of CCC to reduce the speed synchronization error is proved by the frequency domain analysis,and the design method of CCC parameter is proposed;Then,a SMCCC method is proposed to reduce the convergence time of the speed synchroniza-tion error under the disturbances;Finally,current reference switching is applied to solve the unsatisfactory speed synchronization performance caused by the maximum current limitation in the dynamic process.The experimental results show that the current reference switching and SMCCC can make the speed synchroni-zation error converge faster under disturbances,and at the same time effectively reduce the speed synchroni-zation error in the dynamic process.
关键词
永磁同步电机/速度同步/交叉耦合控制/滑模控制Key words
permanent magnet synchronous motor(PMSM)/speed synchronization/cross-coupling control(CCC)/sliding mode control(SMC)引用本文复制引用
出版年
2024
NETL
NSTL
万方数据