title: IM Direct Torque Control with no flux distortion and no static torque error.
abstract: The purpose of this paper is to improve DTC control strategy performances. In fact, we propose controlling both stator flux components (real and imaginary) through two hysteresis controllers. Thus, a new switching table which is independent from sector determination, and does not introduce zero voltage vectors is established; with much reduced size when compared to Takahashi's one. The proposed strategy has allowed cutting off with flux and current harmonics related to distortion caused by sector exchanges. Also, we provide theoretical evidence about the existence of static torque error in classical DTC, and propose a simple PI-type controller to cancel it. The proposed strategy is validated by simulation and practically on a DSPace 1104 board, for a 1.5 (kW) induction motor and various torque references.
authors.affiliation: Laboratory of Informatics, Systems, Electrical, Networks and Telecommunications, Univ Hassan 1, LISERT-ENSA, Boulevard Béni Amir, BP 77, 25000, Khouribga, Morocco. Electronic address: Lokriti.eepci@gmail.com.
authors.forename: Abdesslam
authors.initials: A
authors.lastname: Lokriti
authors.affiliation: Laboratory of Electric Systems and Telecommunications, Cadi Ayyad University, BP 549, Av Abdelkarim Elkhattabi, Gueliz, Marrakesh, Morocco. Electronic address: isalhi@yahoo.fr.
authors.forename: Issam
authors.initials: I
authors.lastname: Salhi
authors.affiliation: Laboratory of Electric Systems and Telecommunications, Cadi Ayyad University, BP 549, Av Abdelkarim Elkhattabi, Gueliz, Marrakesh, Morocco. Electronic address: saiddoubabi@gmail.com.
authors.forename: Said
authors.initials: S
authors.lastname: Doubabi
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D004581:Electronics; D004867:Equipment Design / Q000379:methods*; D015203:Reproducibility of Results; D019415:Torque
keywords: Direct Torque Control; Flux distortion; Induction motor; Reduced switching table