Passive Fault Tolerant Control of Induction Motors Using Nonlinear Block Control

TOHİDİ H., ERENTÜRK K., Shoja-Majidabad S.

CONTROL ENGINEERING AND APPLIED INFORMATICS, cilt.19, sa.1, ss.49-58, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 1
  • Basım Tarihi: 2017
  • Dergi Adı: CONTROL ENGINEERING AND APPLIED INFORMATICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.49-58
  • Anahtar Kelimeler: Induction motor, Fault tolerant control, Nonlinear block control, Sliding mode control, Matched and unmatched faults, SLIDING MODE OBSERVER, BROKEN ROTOR BARS, PARAMETER-ESTIMATION, DRIVES, SENSOR, DIAGNOSIS, SYSTEMS, SPEED, DECOMPOSITION, MACHINES
  • Atatürk Üniversitesi Adresli: Evet

Özet

This paper studies passive fault tolerant control (PFTC) of three phase induction motors (IMs). First, a nonlinear block control (NBC) transformation is applied to handle nonlinearities of motor faulty model. Afterwards, a fault tolerant speed controller is developed based on sliding mode control (SMC) technique with linear sliding surface. However, the utilized NBC transformation needs multiple derivatives calculations which make it computationally burden. In addition, this NBC transformation has unmatched fault rejection problem which SMC controller is not able to remove the fault. To avoid the mentioned drawbacks, a novel and simple NBC transformation is proposed for IM. Also, a new nonlinear sliding surface is presented in order to enhance the SMC controller performance. Comparative simulations demonstrated performance of the proposed controllers for matched and unmatched faults and load torque uncertainties.