Abstract：Aiming at high performance induction motor vector control, a rotor flux observer based on second order sliding mode super-twisting algorithm is designed. Furthermore, a sensorless vector control scheme is presented based on the proposed observer. Compared with standard first-order sliding mode speed estimator, the proposed observer makes full use of auxiliary sliding mode surface, and thus mitigates the adverse effects caused by rotor parameter perturbation and alleviates the chattering behavior. In addition, the proposed observer calculates faster than normal voltage model, which causes better dynamic performance of the whole scheme. Besides, the stator parameter variation and perturbation are revised by parallel stator resistance adaption. Experimental results show the accuracy of instantaneous position and amplitude of the observations. The robustness and effectiveness of the proposed schemes has been validated experimentally.
黄进, 赵力航, 刘赫. 基于二阶滑模与定子电阻自适应的转子磁链观测器及其无速度传感器应用[J]. 电工技术学报, 2013, 28(11): 54-61.
Huang Jin, Zhao Lihang, Liu He. Sensorless Control with Resistance Variation Approach Based on Parallel MRAS and Second-Order Sliding Mode Observer. Transactions of China Electrotechnical Society, 2013, 28(11): 54-61.
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