Input-output feedback linearization of sensorless IM drives with stator and rotor resistances estimation

Masood Hajian, Jafar Soltani, Gholamreza Arab Markadeh (Collaborator), Saeed Hoseinnia (Collaborator)

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)654-666
Number of pages13
Journaljournal of power electronics
Volume9
Issue number4
Publication statusPublished - Jul 2009

Fingerprint

Feedback linearization
Stators
Rotors
Torque control
Fluxes
Vector spaces
Control theory
Personal computers
Field programmable gate arrays (FPGA)
Iron
Electric potential
Experiments

Keywords

  • induction motor
  • direct torque control
  • input-output
  • stator flux
  • sliding mode
  • RLS

Cite this

Input-output feedback linearization of sensorless IM drives with stator and rotor resistances estimation. / Hajian, Masood; Soltani, Jafar; Arab Markadeh, Gholamreza (Collaborator); Hoseinnia, Saeed (Collaborator).

In: journal of power electronics, Vol. 9, No. 4, 07.2009, p. 654-666.

Research output: Contribution to journalArticle

Hajian, M, Soltani, J, Arab Markadeh, G & Hoseinnia, S 2009, '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.
Hajian, Masood ; Soltani, Jafar ; Arab Markadeh, Gholamreza ; Hoseinnia, Saeed . / Input-output feedback linearization of sensorless IM drives with stator and rotor resistances estimation. In: journal of power electronics. 2009 ; Vol. 9, No. 4. pp. 654-666.
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