Input-Output Feedback Linearization of Sensorless IM Drives with Stator and Rotor Resistances Estimation

Direct torque control (DTC) of induction machines (IM) is a well-known strategy of these drives control which has a fast dynamic and a good tracking response. In this paper a nonlinear DTC of speed sensorless IM drives is presented which is based on input-output feedback linearization control theory. The IM model includes iron losses using a speed dependent shunt resistance which is determined through some effective experiments. A stator flux vector is estimated through a simple integrator based on stator voltage equations in the stationary frame. A novel method is introduced for DC offset compensation which is a major problem of AC machines, especially at low speeds. Rotor speed is also determined using a rotor flux sliding-mode (SM) observer which is capable of rotor flux space vector and rotor speed simultaneous estimation. In addition, stator and rotor resistances are estimated using a simple but effective recursive least squares (RLS) method combined with the so-called SM observer. The proposed control idea is experimentally implemented in real time using a FPGA board synchronized with a personal computer (PC). Simulation and experimental results are presented to show the capability and validity of the proposed control method.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

M. Hajian, J. Soltani, G. A. Markadeh, S. Hosseinnia, "Input-Output Feedback Linearization of Sensorless IM Drives with Stator and Rotor Resistances Estimation," Journal of Power Electronics, vol. 9, no. 4, pp. 654-666, 2009. DOI: 10.6113/JPE.2009.9.4.654.

[ACM Style]

Masood Hajian, Jafar Soltani, Gholamreza Arab Markadeh, and Saeed Hosseinnia. 2009. Input-Output Feedback Linearization of Sensorless IM Drives with Stator and Rotor Resistances Estimation. Journal of Power Electronics, 9, 4, (2009), 654-666. DOI: 10.6113/JPE.2009.9.4.654.