High performance vector control of 3-phase im drives under open-phase fault based on EKF for rotor flux estimation

• Main Authors: Jannati, Mohammad, Sutikno, Tole, Nik Idris, Nik Rumzi, Abdul Aziz, Mohd. Junaidi
• Format: Article
• Published: Institute of Advanced Engineering and Science 2016
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utm.my/id/eprint/72736/; https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960114141&doi=10.11591%2fijece.v6i1.9011&partnerID=40&md5=ae231f752781d26dfae77d50a72b8a18

This paper proposes a novel flux observer based on Extended Kalman Filter (EKF) for high performance vector control of 3-phase Induction Motor (IM) drives under stator winding open-phase fault. The presented flux estimation combines the Indirect Rotor Field-Oriented Control (IRFOC) method. The rotor flux is obtained from two modified EKF with two different stator currents (forward and backward stator currents). The proposed technique can significantly reduce the DC-offset problem on the pure integrator associated with the basic IRFOC method. The Matlab simulation results confirm the validity of the proposed strategy.