SENSORLESS CONTROL OF INDUCTION MOTOR BASED ON PROPORTIONAL-INTEGRAL LINEAR SUPER TWISTING ALGORITHM SLIDING MODE OBSERVER

Zheng Zheng; Mao Shaoran

doi:10.19912/j.0254-0096.tynxb.2020-1342

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (8) : 316-322. DOI: 10.19912/j.0254-0096.tynxb.2020-1342

SENSORLESS CONTROL OF INDUCTION MOTOR BASED ON PROPORTIONAL-INTEGRAL LINEAR SUPER TWISTING ALGORITHM SLIDING MODE OBSERVER

Zheng Zheng, Mao Shaoran

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Abstract

In the speed control system based on the sensorless induction motor, in order to solve the problem of the balance between the sliding mode chattering and the observation accuracy of the sliding mode observer, a proportional-integral linear super twisting algorithm sliding mode observer with strong robustness is designed. Firstly,the stability of the linear super twisting algorithm is proved by Lyapunov theory. Then, the intermediate variables of the rotor flux observer are designed,the proportional-integral sliding mode surface based on the stator current error term is established,and a new sliding mode flux observer is constructed. Simulations and experiments show that the observer effectively suppresses sliding mode chattering,the motor's flux linkage observation and anti-disturbance capabilities are improved,the motor has higher observation accuracy during operation,and the dynamic and steady-state performance of the system is enhanced.

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sensorless control / vector control / induction machine / sliding mode control

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Zheng Zheng, Mao Shaoran. SENSORLESS CONTROL OF INDUCTION MOTOR BASED ON PROPORTIONAL-INTEGRAL LINEAR SUPER TWISTING ALGORITHM SLIDING MODE OBSERVER[J]. Acta Energiae Solaris Sinica. 2022, 43(8): 316-322 https://doi.org/10.19912/j.0254-0096.tynxb.2020-1342

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