Novel Speed and Current Sensor FDI Schemes with an Improved AFTC for Induction Motor Drives

Bouakoura, Mohamed; Naït-Saïd, Nasreddine; Naït-Saïd, Mohamed-Saïd; Belbach, Adel

doi:10.15598/aeee.v16i1.2573

Cited by 5 publications

(6 citation statements)

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“…Therefore, to ensure the stable operation of the motor drive system, any failures that occur with the feedback signals should be evaluated and solved accordingly; this processing is called the fault tolerant (FT) control technique. Due to the increasing requirements for IMD systems' safety, reliability, and maintainability, integrating FT control function into the control process has been considered an essential requirement enormously recently [9], [10]. The FT function consists of two core processes: the sensor fault diagnostic and the reconfiguration.…”

Section: Introductionmentioning

confidence: 99%

An extended sensor fault tolerant control method applied to three-phase induction motor drives

Huu Nguyen,

Tran

2024

Bulletin EEI

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This research presents a fault tolerant (FT) control method for three-phase induction motor drives (IMDs) against sensor failures in the operating process. In this paper, an IMD applied the field oriented (FO) control for the speed and torque control is used to study the operation under sensor fault conditions. A fault detection isolation function is integrated into the FO control loop as an intermediary component to evaluate the quality of the measured signals of the sensors and provide proper signals for speed control of the drive system. A combined method of a comparison algorithm and a third difference operator (TDO) is proposed for the fault diagnosis function to improve the sustainable operation of the drive. The reliability of the proposed method will be verified through the operation mechanism of the FT function corresponding to three sensor fault states and a random noise state in the simulation environment by MATLAB/Simulink software.

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Section: Introductionmentioning

confidence: 99%

An extended sensor fault tolerant control method applied to three-phase induction motor drives

Huu Nguyen,

Tran

2024

Bulletin EEI

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“…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].…”

Section: Introductionmentioning

confidence: 99%

“…The passive approach provides a robust control that can maintain the performance of an acceptable operation. The first fault tolerant control (FTC) is implemented in aircraft [9], it is later extended to several other domains, such as electric vehicles [12,13], wind power conversion systems [14,15] and in industry [16].…”

Section: Introductionmentioning

confidence: 99%

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

Benslimane,

Bendjebar,

Bouayed

2023

JESA

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This paper presents a study focused on the operation of a twelve-sector direct torque control (DTC) structure under both healthy and faulty conditions for an induction motor (IM). The fault-tolerant control (FTC) discussed herein pertains to a three-phase two-level inverter based on an open-circuit fault of an insulated gate bipolar transistor (IGBT). In this scenario, the gate signal of the transistor is manually forced to zero. The proposed control mechanism is capable of maintaining stability at a certain minimum performance level. Experimental results, derived from testing the IM under both healthy and faulty modes using a Dspace 1104 board, display the commendable performance of the proposed control. This improved DTC strategy, bolstered by twelve sectors, has resulted in minimizing torque ripples, flux, and stator current oscillations, as compared to conventional DTC. The principle provides a robust solution that effectively reduces vibrations and audible noise.

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“…During operation, if the loss of feedback signal due to damaged sensors occurs, it will lead to the failure of the FOC algorithm in controlling the motor [9][10][11]. Nowadays, to increase the IMD's reliability, FTC techniques have been researched to integrate into the FOC loop to ensure continuous operation even in the event of sensor failure [12], [13]. This paper will analyze and provide an effective FTC solution against failures of the speed encoder and the current sensors.…”

Section: Introductionmentioning

confidence: 99%

Improved Sensor Fault-Tolerant Control Technique Applied to Three-Phase Induction Motor Drive

Nguyen

Tran

2023

IJEEI

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An improved fault-tolerant control (FTC) method using mathematical functions is applied to the induction motor drive (IMD) against current sensors and speed encoder failures, which occur when the sensor is disconnected or completely damaged. The IMD with two current sensors and an encoder is speed controlled based on the field-oriented control (FOC) technique in regular operation. In this paper, an FTC unit is implemented in the FOC controller to detect and solve the sensor fault to increase the reliability of the speed control process. The measured stator currents and the feedback speed signal are integrated into the diagnosis algorithms to create a sensor fault-tolerant control function. Three diagnosis functions operating in a defined sequence are proposed for determining the health status of current and speed sensors. The FTC function performs isolation and replaces the faulty sensor signals with the proper estimated signals; then, the IMD will operate in the corresponding sensorless mode. Simulations will be performed to verify the accuracy and reliability of the proposed method under various sensor faults.

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Novel Speed and Current Sensor FDI Schemes with an Improved AFTC for Induction Motor Drives

Cited by 5 publications

References 0 publications

An extended sensor fault tolerant control method applied to three-phase induction motor drives

An extended sensor fault tolerant control method applied to three-phase induction motor drives

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

Improved Sensor Fault-Tolerant Control Technique Applied to Three-Phase Induction Motor Drive

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