A simple vector control technique for 3-phase induction motor under open-phase fault based on GA for tuning of speed PI controller

Abstract

This paper discusses a simple vector control technique for vector control of faulty 3-phase Induction Motor (3-phase IM under open-phase fault) based on Rotor FluxOriented Control (RFOC). It is shown in the adapted system for vector control of the faulty IM, it is essential for the speed PI controller coefficients to modify. For this reason, Genetic Algorithm (GA) is employed for tuning of speed PI controller. The results of this study show that the proposed drive system have acceptable good speed and torque responses.

Stator Field-Orientation Speed Control for 3-Phase Induction Motor under Open-Phase Fault

“…This should be applied as follows: The term (3L qs -L ds ) in equation (11) is almost zero (3L qs -L ds =3L ls +1.5L ms -L ls -1.5L ms =2L ls ≈0) and consequently, equation (11) will provide balanced stator fluxes. With respect to (10) it must be noted that besides the influence of stator flux, v ds1 and v qs1 are unbalanced due to 2r s .…”

“…The conventional controller which is used for 3-phase IM drives cannot be able to work during fault conditions. If a conventional controller for healthy IM is applied to the faulty machine, oscillations in the motor torque and speed can be observed [9]- [11]. For this reason, an appropriate control algorithm is needed to control faulty machine.…”

A Novel Technique for Fault-Tolerant Control of Single-Phase Induction Motor

“…These control techniques assure energy saving, improved efficiency, decrease in torque response pulsation and etc [4][5][6][7][8]. Recent research trend on IM is toward vector control of single-phase IMs or unbalanced two-phase IMs [9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Generally, in all proposed vector control methods for single-phase IMs, the start-up and running capacitors are disregarded and single-phase IM is considered as an asymmetric 2-phase IM.…”

“…However, decoupling vector control technique depends on variation of single-phase IM parameters. In [13][14][15][16][17][18][19][20][21][22], some methods for high performance FOC of single-phase IM or unbalanced 2-phase IM have been presented which can be listed as follows; In [13][14][15][16], speed sensorless Indirect FOC (IFOC) of 2-phase IM using Extended Kalman Filter (EKF), in [17], Model Reference Adaptive System (MRAS) observer for rotor speed estimation, in [18], sensorless FOC of single-phase IM with on line stator resistance estimation, in [19,20], two techniques for speed sensorless IFOC of unbalanced 2-phase IM based on motor model, in [21], FOC of 2-phase IM using Genetic Algorithm (GA) for speed PI controller tuning and in [22], Virtual High Frequency Injection Method (VHFIM) to determine the speed and position in IFOC of 2-phase IM have been presented. …”

DTC Method for Vector Control of 3-Phase Induction Motor under Open-Phase Fault

“…Differently from the previous techniques to control IM under openphase fault (e.g., [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]), the rotational transformation matrices are not need to control faulty machine. (the previous methods to control IM in [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] are based on FOC). This research is organized as follows: In section 2, d-q model of faulty 3-phase IM is presented.…”