基于模糊磁链转矩估算器的滑模DTC设计

Interleaved Parallel PFC Control Method Based on Improved Repetitive Control

分析传统电动汽车驱动系统中PMSM运行的特点,提出了基于模糊磁链转矩估算器的滑模DTC控制系统。该系统采用模糊定子电子估计器优化磁链转矩的估计值,结合二阶滑模控制结构抑制传统直接转矩控制带来的磁链转矩脉动;采用模型参考自适应系统代替硬件传感器结构,提高电动汽车驱动系统的可靠性。仿真结果表明提出控制系统对转矩、转速脉动抑制的可行性与有效性。

Based on the analysis of the PMSM operating characteristics in the traditional electric vehicle drive system,a sliding mode DTC control system based on the fuzzy flux torque estimator was proposed.The system used a fuzzy stator electronic estimator to optimize the estimated value of the flux torque,combined with a second-order sliding mode control structure to suppress the flux torque ripple caused by traditional direct torque control;A model reference adaptive system was used instead of the hardware sensor structure,improved the stability of the drive system.The simulation results show the feasibility and effectiveness of the proposed control system to suppress torque and speed ripple.