Extended Kalman Filter for Sensorless Fault Tolerant Control of PMSM with Stator Resistance Estimation

Abstract

<p><span>This paper aims to provide a high performance sensorless control based on an Extended Kalman Filter (EKF) applied to fault-tolerant PMSM drive system with stator-resistance estimation. It proposes a fast method of fault switches detection in the power converters. The considered drive is composed of three phases PMSM and a four leg three phase’s inverter when the fourth is the redundant leg. After a short-switch fault occurrence, the redundant leg replaces the faulty leg. The simulation results verify that the proposed control method and the fault tolerant inverter ensure the high reliability and continuously operation of the sensorless vector control PMSM system under inverter fault.</span></p>

Fault Tolerant Control Implementation for Inverter-Fed Induction Motors: A Real-Time Implementation

“…According to the advancement in technology, FTC aims for assured operation even after a fault has occurred, leading to more sophisticated methods of fault detection (FD) and robust control in degraded mode [7][8][9][10][11]. There are two types of FTC: the so-called active and the other passive [3,4,9].…”

“…Moujahed et al [11] proposes a vision of a high performance sensorless control based on an extended Kalman filter (EKF) with estimation of the stator resistance applied to a drive composed of a three-phase PMSM and a three-phase inverter with four legs; the fourth one being the fault tolerant redundant leg; the authors proposed a method to detect the short circuit of the switch based on the analysis of the average stator current value.…”

Fault‐tolerant control of PMSM based on NTSMC and NLFO

“…Permanent magnet synchronous motors (PMSMs) are widely used on various occasions for their advantages such as high efficiency, high ratio of torque to weight, high-power factor, faster response, and rugged construction [1][2][3][4][5]. In some important situations, the continuous output capacity of the motor is not allowed to be interrupted, such as aerospace systems and industrial control systems.…”

Sensorless control scheme based on sliding modes for interior permanent magnet synchronous motor

“…For instance, Extended Kalman Filter (EKF) has been used to estimate the speed, the angular position and the stator winding resistance. 7,8 Nevertheless, it is not easy to guarantee the convergence for timevarying systems using a control scheme based on the EKF, 9 being difficult to prove the closed-loop system stability. 10 In Wu et al, 11 an adaptive super-twisting observer for estimating the rotor position and speed has been used to implement a backstepping control on an IPMSM.…”