EKF-based rotor and stator resistance estimation in speed sensorless control of induction motors

2012 ◽  
Author(s):  
Chia-Jui Chiang ◽  
Yen-Kai Wang ◽  
Wei-Te Cheng
Keyword(s):  
Induction Motors ◽  
Sensorless Control ◽  
Speed Sensorless ◽  
Stator Resistance

Efficiency Optimization in Speed-Sensorless Control of Induction Motors

2014 ◽  
Vol 672-674 ◽  
pp. 1214-1218
Author(s):  
Hai Fang Yu ◽  
Peng Gao ◽  
Shun Jie Han
Keyword(s):  
Control Strategy ◽  
Induction Motors ◽  
Sensorless Control ◽  
Direct Torque Control ◽  
Torque Control ◽  
Optimal Control Strategy ◽  
Speed Sensorless ◽  
Efficiency Optimization ◽  
Motor Efficiency ◽  
Loss Efficiency

An efficiency optimization model for induction motors with speed-sensorless control is presented in this paper. An mathematical loss model with stator iron loss in DTC(Direct Torque Control) system is used to calculate the motors loss, the loss efficiency and the optimal flux. Additionally, the efficiency optimization control strategy combined with the speed-sensorless model is used to rebuild the simulation modeling. The simulation results with the proposed control strategy show superior effects compared to the traditional control methods. The optimal control strategy can be achieved to improve the motor efficiency.

Speed-sensorless control of induction motors based on adaptive EKF

2021 ◽  
Author(s):  
Lisi Tian ◽  
Zhaoxun Li ◽  
Zaixiang Wang ◽  
Xiaoxu Sun ◽  
Tao Guo ◽  
...  
Keyword(s):  
Induction Motors ◽  
Sensorless Control ◽  
Speed Sensorless
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