Modeling and rotor field-oriented control of a faulty three-phase induction motor based on GSA for tuning of PI controllers

Abstract

This paper discusses the d-q model and winding function method (WFM) for modeling and a rotor fieldoriented control (RFOC) system for controlling a faulty three-phase induction motor (three-phase IM when one of the phases is disconnected). In the adapted scheme for controlling the faulty IM, it is necessary for the PI controller coefficients to change. For this purpose, the gravitational search algorithm (GSA) is used for tuning of PI controllers.The results show the strength and ability of the technique to improve the performance of the faulty IM control.

Modified indirect rotor field‐oriented control strategies for wye‐connected three‐phase induction motor drives under an open‐phase fault

“…• The suggested FOC IR has higher accuracy compared to [21,26,27] due to considering the 3φ IM y parameter in the FOC IR equations.…”

“…To design the control method based on the orientation of the rotor flux for the 3φ IM y under the SWOCF, we need to define the relationship among the rotor flux, electromagnetic torque, speed, and stator currents. By using (26) it is possible to rewrite ( 13)-( 15) as ( 28)-( 30) [29]:…”

“…In the literature, several methods have been proposed for applying scalar control techniques [23,24] and FOC strategies [7,[19][20][21][22][25][26][27][28][29] to 3φ IM drives under the SWOCF. In [23], a scalar control strategy based on the magneto-motive force (MMF) calculation of the faulty 3φ IM was proposed for open-phase FTC of delta-connected 3φ IM (3φ IM Δ ) drives.…”

“…In [21,27], different modified FOC IR methods based on asymmetrical transformations and using voltage control systems were proposed for 3φ IM y drives under the SWOCF. In [26], modelling and FOC IR of the faulty 3φ IM y using the gravitational search algorithm (GSA) for tuning of PI controllers were proposed. To simplify the vector control equations in [21,26,27], the leakage inductance value has not been considered in the FOC equations.…”

“…In [26], modelling and FOC IR of the faulty 3φ IM y using the gravitational search algorithm (GSA) for tuning of PI controllers were proposed. To simplify the vector control equations in [21,26,27], the leakage inductance value has not been considered in the FOC equations. Based on the presented studies in [7,20], the elimination of this parameter in the FOC equations decreases the control accuracy.…”