A methodology for characterizing fault tolerant switched reluctance motors using neurogenetically derived models

Belfore, Lee A.; Arkadan, A.A.

doi:10.1109/tec.2002.801999

Cited by 44 publications

(24 citation statements)

References 11 publications

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“…For fault-tolerant control, artificial neural network and genetic algorithm are developed [34]. The fuzzy logic control without a model is proposed in [35] to improve the performance of the SRM under fault conditions.…”

Section: Table I Comparison Of Fault-tolerant Methodsmentioning

confidence: 99%

“…A magnetic brake acts as the load with a torque of 1 Nm. The dc-link voltage is fixed to 48 V. The torque observed in the oscilloscope is obtained online by using the real-time phase currents and rotor position to look up for the torque value in a 3-D torque table that includes the T-i-θ characteristics [33], [34]. The torque data in the lookup table are measured by using a rotor-clamping device when supplying different steady currents to the motor windings in a rotor position that changes step by step.…”

Section: Simulation and Experimentsmentioning

confidence: 99%

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Flexible Fault-Tolerant Topology for Switched Reluctance Motor Drives

Gan

Cao

et al. 2016

IEEE Trans. Power Electron.

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Switched reluctance motor (SRM) drives are one competitive technology for traction motor drives. This paper proposes a novel and flexible SRM fault-tolerant topology with fault diagnosis, fault tolerance, and advanced control functions. The converter is composed of a single-phase bridge and a relay network, based on the traditional asymmetrical half-bridge driving topology. When the SRM-driving system is subjected to fault conditions including open-circuit and short-circuit faults, the proposed converter starts its fault-diagnosis procedure to locate the fault. Based on the relay network, the faulty part can be bypassed by the single-phase bridge arm, while the single-phase bridge arm and the healthy part of the converter can form a fault-tolerant topology to sustain the driving operation. A fault-tolerant control strategy is developed to decrease the influence of the fault. Furthermore, the proposed fault-tolerant strategy can be applied to three-phase 12/8 SRM and four-phase 8/6 SRM. Simulation results in MATLAB/Simulink and experiments on a three-phase 12/8 SRM and a four-phase 8/6 SRM validate the effectiveness of the proposed strategy, which may have significant economic implications in traction drive systems. Index Terms-Fault diagnosis, fault tolerance, switched reluctance motor (SRM), traction motor drive. NOMENCLATURE D PWM duty cycle. i a , i b , i c Currents for phases A, B, and C. i max Phase current peak when faulty. i max Phase current peak when normal. Δi Hysteresis window. N r Rotor poles. K L Inductance slope when normal. K i Current slope when normal. K L Inductance slope when faulty.

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Section: Table I Comparison Of Fault-tolerant Methodsmentioning

confidence: 99%

Section: Simulation and Experimentsmentioning

confidence: 99%

Flexible Fault-Tolerant Topology for Switched Reluctance Motor Drives

Gan

Cao

et al. 2016

IEEE Trans. Power Electron.

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“…In order to balance the voltage across the capacitors, it will be considered a control law associated to these capacitor voltages. This law is given by (11) and consists in the difference between the measured capacitor voltages. (11) From the analysis of the circuit and the switches states presented in Table 2, is possible to see that for the intermediate voltage +V DC /2 and positive winding current, state 1 discharges upper capacitor and state 3 discharges the lower capacitor.…”

Section: Control Of the Drive And Balance Of The DC Voltage Capacmentioning

confidence: 99%

“…The modification of the switching states of the power semiconductors are proposed in [10]. Other approaches use artificial neural networks and genetic algorithms [11], the analyses of different fault tolerant situations with traditional Proportional-Integral (PI) and Integral-Proportional (IP) regulators [12], fault detections schemes [13] or even the modification of the geometry of the system using dual-channel SRM [14]. In [15] a mutually coupled dual three-phase SRM is used and in [16]- [18] it is adopted, as fault tolerant control strategy, the modification of the control parameters and references.…”

Section: Introductionmentioning

confidence: 99%

A Multilevel Fault-Tolerant Power Converter for a Switched Reluctance Machine Drive

et al. 2020

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Reliability in the electrical drives is becoming an important issue in many applications. In this context, the reliability associated to the switched reluctance machine (SRM) is also an important area of research. One of the major problems, that strongly affect its operation, are drive power semiconductors faults. Typical power converter topologies used in SRM drives cannot handle faults in their power semiconductors. So, this paper presents a power converter topology that provides fault-tolerant capabilities to the drive under a switch fault. This power converter will be used considering that a change in the direction of the current that flows in the SRM windings does not affect the behavior of the machine. Besides that, the proposed power converter will allow to generate multilevel phase voltages in order to apply different voltage levels as function of the SRM speed. A laboratory power converter was developed to test the SRM drive in normal and faulty conditions. From the obtained results it was possible to verify the fault-tolerant capability of the drive under switch faults in different devices and failure modes. It was also possible to confirm the multilevel operation of the drive.

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“…In [7], the superior fault-tolerance characteristics of a four-phase 8/6 SRM under various types of motor winding faults have been proved in a working laboratory. In [8], an artificialneural-network model was developed to predict faulttolerant performance of an SRM. To enhance the faulty performance of SRMs, a model-free adaptive fuzzy controller was proposed by Mir [9].…”

Section: Introductionmentioning

confidence: 99%

Analysis and experimental verification of fault-tolerant performance of a mutually coupled dual-channel SRM drive under open-circuits

Ding

Liu

et al. 2014

2014 Ninth International Conference on Ecological Vehicles and Renewable Energies (EVER)

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The mutually coupled dual-channel switched reluctance machine (DCSRM) is a kind of special machine, which inherently offers high fault-tolerant feature. The purpose of this paper is to analyze and investigate the fault-tolerant performance of the DCSRM at open-circuits. Firstly, the faulty mathematic model of the DCSRM under open-circuit fault is developed with combination of a state and a fault functions. The simulation model of the DCSRM drive based on Matlab/simulink is established for dynamic analysis. To achieve fault-tolerant operation, a speed closed-loop control is performed to maintain the speed as the normal operation. The dynamic performances of the DCSRM under normal and open-circuit faults are predicted. Finally, an experimental setup for a 12/8 DCSRM drive is built for verification. The experimental results at normal, various open-circuit faults and sudden changes of load torque operations are presented to verify the analytical and simulation results and fault-tolerant control strategy of the DCSRM drive system.

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A methodology for characterizing fault tolerant switched reluctance motors using neurogenetically derived models

Cited by 44 publications

References 11 publications

Flexible Fault-Tolerant Topology for Switched Reluctance Motor Drives

Flexible Fault-Tolerant Topology for Switched Reluctance Motor Drives

A Multilevel Fault-Tolerant Power Converter for a Switched Reluctance Machine Drive

Analysis and experimental verification of fault-tolerant performance of a mutually coupled dual-channel SRM drive under open-circuits

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