Control Mode Switching of Induction Machine Drives between Vector Control and V/f Control in Overmodulation Range


Vol. 11, No. 6, pp. 846-855, Nov. 2011
10.6113/JPE.2011.11.6.846


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 Abstract

This paper proposes a control mode switching scheme between vector control and constant V/f control for induction machine (IM) drives for maximum torque utilization in a higher speed region. For the constant V/f scheme, a smooth transition method from the linear range of PWM up to the six-step mode is applied, by which the machine flux and torque can be kept constant in a high-speed range. Also, a careful consideration of the initial phase angle of the voltage in the transient state of the control mode change between the vector control and V/f schemes is described. The validity of the proposed strategy is verified by the experiment result for a 3-kW induction motor drives.


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Cite this article

[IEEE Style]

T. H. Nguyen, T. L. Van, D. Lee, J. Park, J. Hwang, "Control Mode Switching of Induction Machine Drives between Vector Control and V/f Control in Overmodulation Range," Journal of Power Electronics, vol. 11, no. 6, pp. 846-855, 2011. DOI: 10.6113/JPE.2011.11.6.846.

[ACM Style]

Thanh Hai Nguyen, Tan Luong Van, Dong-Choon Lee, Joo-Hong Park, and Joon-Hyeon Hwang. 2011. Control Mode Switching of Induction Machine Drives between Vector Control and V/f Control in Overmodulation Range. Journal of Power Electronics, 11, 6, (2011), 846-855. DOI: 10.6113/JPE.2011.11.6.846.