控制理论与应用2011，Vol.28Issue(9)：1195-1201,7.
无刷双馈电机滑模变结构直接转矩控制
Direct-torque control of the brushless double-fed machines based on sliding-mode variable structure control strategy
摘要
Abstract
A novel sliding-mode variable structure（SMVS） control strategy is proposed to reduce the ripples of ？ux and torque of brushless double-fed machines（BDFM） based on direct torque control system（DTC）.In order to ensure the constant switching frequency for the inverter,two hysteresis regulators in the conventional DTC system are substituted by the SMVS controllers of ？ux and torque,and the space voltage vector pulse-width-modulation is used in the output of the voltage vector switches.The SMVS controllers are designed with the method of exponential approach law,and the Lyapunov stability theory is utilized to solve for the control law of the SMVS controllers.The simulation model of DTC is established in MATLAB/Simulink environment.The simulation results show that this new control method effectively reduces the torque ripples and improves the waveforms of the stator ？ux and current.The inherent advantage of the fast dynamic-response of the torque in DTC is reserved.The stability and robust performance of the system is enhanced.关键词
无刷双馈电机/直接转矩控制/滑模变结构/指数趋近率/转矩脉动Key words
brushless double-fed machine/direct torque control/sliding-model variable structure/exponential approach law/torque ripples分类
信息技术与安全科学引用本文复制引用
杨俊华,刘远涛,谢景凤,刘慧媛,吴捷..无刷双馈电机滑模变结构直接转矩控制[J].控制理论与应用,2011,28(9):1195-1201,7.基金项目
国家自然科学基金重点资助项目 （）
广东省教育厅专项重点实验室重点资助项目 （）
广东省科技计划资助项目 （）
