| Title |
Torque Feed-Forward Compensation Method with Discrete Flux Observers for Induction Motor V/f Control |
| Authors |
홍창완(Chang-Wan Hong) ; 오귀운(Gwi-Un Oh) ; 김승택(Seung-Taik Kim) ; 윤인식(In-Sik Yoon) ; 고종선(Jong-Sun Ko) |
| DOI |
https://doi.org/10.5370/KIEE.2025.74.3.455 |
| Keywords |
Deadbeat observer; Feed-forward compensation; Flux observer; Induction motor; V/f control |
| Abstract |
In this paper, a torque feed-forward compensation method with discrete flux observer is proposed for voltage per frequency (V/f) control of induction motors. Induction motors are widely used in various industries such as large pumps and water supply systems due to their simple structure and low cost. V/f control is one of the driving methods for induction motors, offering the advantage of simple implementation. However, it has the drawback that slip causes a difference between the commanded speed and the rotor speed when the load changes. Therefore, this paper proposes a method to compensate the torque with the load in a feed-forward manner through a discrete flux observer. This method can quickly respond to load fluctuations during operation and improve the speed control performance of the motor. The control method proposed in this paper shows better speed control performance than the conventional V/f control through simulation using MATLAB/Simulink and experiments. |