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首页> 外文会议>2010 Joint International Conference on Power Electronics, Drives and Energy Systems >Torque ripple reduction in direct torque control based induction motor drive using novel optimal controller design technique
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Torque ripple reduction in direct torque control based induction motor drive using novel optimal controller design technique

机译：使用新型最佳控制器设计技术的基于直接转矩控制的感应电动机驱动器中的转矩脉动减小

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摘要

In the present work a novel strategy for optimum design of flux and torque controller for carrier space vector pulse width modulation based direct torque control (CSVPWM DTC) of induction motor (IM) drive has been implemented. Two positive and one negative torque slope levels per half the switching period has been predicted for CSVPWM DTC IM drive based on which a new optimal control strategy is proposed for the design of flux and torque controllers where, a P controller is used in the flux loop and a PI controller is used in the torque loop. Performance investigation shows that optimally tuned controllers used in CSVPWM DTC technique are helpful in reducing torque ripple. In proposed control strategy flux and torque slopes are derived using d-q axis induction motor model in stationary reference frame. These slope parameters are respectively utilized to find the transfer function (TF) of flux and torque loops. Using these TF, flux P and torque PI controller settings are obtained such that they give the best results in terms of reduced torque ripple for any flux and torque slopes. In order to show the superiority of the proposed control strategy for CSVPWM DTC IM drive over conventional DTC technique, comparison of simulation and hardware results are presented.
机译：在本工作中，已经实现了一种用于磁通量和转矩控制器优化设计的新策略，用于基于感应电动机（IM）的直接转矩控制（CSVPWM DTC）的载空间矢量脉冲宽度调制。对于CSVPWM DTC IM驱动器，预测了每半个开关周期有两个正转矩斜率电平和一个负转矩斜率电平，在此基础上，针对磁通量和转矩控制器的设计提出了一种新的最优控制策略，其中在磁通回路中使用P控制器转矩回路中使用PI控制器。性能研究表明，在CSVPWM DTC技术中使用的最佳调整控制器有助于减少转矩波动。在提出的控制策略中，使用d-q轴感应电动机模型在固定参考系中得出磁通和转矩斜率。这些斜率参数分别用于找到磁通和转矩回路的传递函数（TF）。使用这些TF可获得磁通P和转矩PI控制器的设置，从而在减小任何磁通和转矩斜率的转矩脉动方面提供最佳结果。为了显示所提出的CSVPWM DTC IM驱动器相对于传统DTC技术的控制策略的优越性，给出了仿真和硬件结果的比较。

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