Extending High-Speed Operating Range of Induction Machine Drives Using Deadbeat-Direct Torque and Flux Control With Precise Flux Weakening

2019 ◽  
Vol 55 (4) ◽  
pp. 3770-3780 ◽  
Author(s):  
Yang Xu ◽  
Chikara Morito ◽  
Robert D. Lorenz
Keyword(s):  
High Speed ◽  
Induction Machine ◽  
Flux Control ◽  
Operating Range ◽  
Induction Machine Drives ◽  
Machine Drives ◽  
Flux Weakening

scholarly journals Model-Based Predictive Rotor Field-Oriented Angle Compensation for Induction Machine Drives

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2049
Author(s):  
Yang Liu ◽  
Jin Zhao ◽  
Quan Yin
Keyword(s):  
High Speed ◽  
Low Cost ◽  
Dynamic Performance ◽  
Induction Machine ◽  
Predictive Algorithm ◽  
Model Based ◽  
Induction Machine Drives ◽  
The Stability ◽  
Compensation Approach ◽  
Machine Drives

In this paper, a model-based predictive rotor field-oriented angle compensation approach is proposed for induction machine drives. Indirect rotor field-oriented control is widely used in induction machine drives for its simple implementation and low cost. However, the accuracy of the rotor field-oriented angle is affected by variable parameters such as the rotor resistance and inductance. An inaccurate rotor field-oriented angle leads to a degradation of the torque and dynamic performance, especially in the high-speed flux-weakening region. Therefore, the d-axis and q-axis currents in the rotation reference frame are predicted based on the model and compared with the feedback current to correct the rotor field-oriented angle. To improve the stability and robustness, the proposed predictive algorithm is based on the storage current, voltage, and velocity data. The algorithm can be easily realized in real-time. Finally, the simulated and experimental results verify the algorithm’s effectiveness on a 7.5 kW induction machine setup.

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