Simultaneous Estimation of Rotor Speed and Rotor Resistance of an Induction Motor Using Variable Rotor Flux

In this paper, a new speed sensorless induction motor scheme which can estimate rotor speed and rotor resistance simultaneously is presented. The rotor flux with a low frequency sinusoidal waveform is used to conduct on-line simultaneous estimation of the rotor speed and rotor resistance. Hence the proposed sensorless control method is robust to rotor resistance variations. Also, the control scheme has no current minor loop to determine voltage references. It contributes to good control performance at low speeds. Some simulation results supported by experiments are given to show the effectiveness of this method.

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Cite this article

[IEEE Style]

Z. Lee and S. Jeong, "Simultaneous Estimation of Rotor Speed and Rotor Resistance of an Induction Motor Using Variable Rotor Flux," Journal of Power Electronics, vol. 5, no. 4, pp. 282-288, 2005. DOI: 10.6113/JPE.2005.5.4.282.

[ACM Style]

Zhen-Guo Lee and Seok-Kwon Jeong. 2005. Simultaneous Estimation of Rotor Speed and Rotor Resistance of an Induction Motor Using Variable Rotor Flux. Journal of Power Electronics, 5, 4, (2005), 282-288. DOI: 10.6113/JPE.2005.5.4.282.