Vector Control of Active Disturbance Rejection Induction Motor based on Sliding Mode Variable Structure

X. Zhou, Junqing Pan, Youjie Ma, Diankang Su
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Abstract

Aiming at the problems of coupling and chattering in the actual operation of induction motor, a composite control strategy based on sliding mode variable structure active disturbance rejection control is proposed. Firstly, the mathematical model of induction motor under vector control is established. By selecting reasonable state variables and using the idea of disturbance compensation in active disturbance rejection technology, the SMADRC controller of induction motor speed loop is designed. The controller not only retains the strong robustness of traditional sliding mode, but also effectively weakens the motor chattering problem through compensation. Finally, the feasibility and correctness of the control strategy are verified by numerical simulation
基于滑模变结构的自抗扰感应电机矢量控制
针对异步电动机实际运行中存在的耦合和抖振问题,提出了一种基于滑模变结构自抗扰控制的复合控制策略。首先,建立了矢量控制下异步电动机的数学模型。通过选择合理的状态变量,采用自抗扰技术中的扰动补偿思想,设计了感应电机速度环的SMADRC控制器。该控制器既保留了传统滑模的强鲁棒性,又通过补偿有效地削弱了电机抖振问题。最后,通过数值仿真验证了控制策略的可行性和正确性
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