Robust On-line Rotor Time Constant Estimation for Induction Machines

Anno Yoo

Robust On-line Rotor Time Constant Estimation for Induction Machines

Anno Yoo

Vol. 14, No. 5, pp. 1000-1007, Sep. 2014

10.6113/JPE.2014.14.5.1000

Indirect Field Oriented Control (IFOC)

Induction machine

On-line rotor time constant estimation

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Abstract

This paper proposes an on-line rotor time constant estimation strategy for indirect field oriented induction machines. Theperformance of the indirect field oriented control is dependent especially on the rotor time constant whose value varies according tothe temperature. The proposed method calculates the difference between the nominal rotor time constant and the real value from thed- and q-axis integration terms of a proportional integral (PI) current regulator and the demanded voltages of the induction machineto regulate the current in the steady state. Because the proposed strategy has a simple structure and is available in wide speed andtorque ranges, the proposed method can be easily used in the industrial field. The effectiveness of proposed strategy is verified withsimulations and a 7.5kW experimental setup.

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Cite this article

[IEEE Style]

A. Yoo, "Robust On-line Rotor Time Constant Estimation for Induction Machines," Journal of Power Electronics, vol. 14, no. 5, pp. 1000-1007, 2014. DOI: 10.6113/JPE.2014.14.5.1000.

[ACM Style]

Anno Yoo. 2014. Robust On-line Rotor Time Constant Estimation for Induction Machines. Journal of Power Electronics, 14, 5, (2014), 1000-1007. DOI: 10.6113/JPE.2014.14.5.1000.