Design of fault tolerant control technique for SRM drive

Dubravka, Peter; Rafajdus, Pavol; Makyš, Pavol; Peniak, Adrian; Hrabovcová, Valéria; Szabó, Loránd; Ruba, Mircea

doi:10.1109/epe.2014.6910944

Cited by 9 publications

(5 citation statements)

References 9 publications

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“…There are two boundary rotor positions: unaligned and aligned. Discrete points of static characteristics (torque and inductance of one phase) were calculated from unaligned to aligned rotor position with the step of one mechanical degree, whereas the current was changed from 0 to 30 A with a step of 1 A [14]. The obtained static characteristics are given in Fig.…”

Section: Mathematical Model Of Srmmentioning

confidence: 99%

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Control of switched reluctance motor by current profiling under normal and open phase operating condition

Dubravka¹,

Rafajdus²,

Makyš³

et al. 2017

IET Electric Power Applications

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This study is focused on a new approach of current profile computation to minimise switched reluctance motor (SRM) torque ripple both in healthy and one open phase fault condition. The analysis of static parameters by means of finite element method is carried out and it is verified by measurements. The mathematical model of SRM is described to simulate all transients. The new current profiling method is applied and tested for normal and faulty operation of a real SRM. The torque ripple is measured at a 10 kHz switching frequency. Lower torque ripple is obtained when compared with standard control methods, both under normal and open phase conditions. The simulations of diverse dynamic states are carried out and compared with experimental results.

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Section: Mathematical Model Of Srmmentioning

confidence: 99%

“…For many applications, the torque ripple is an important issue [13]. In [14][15][16][17][18][19], diverse techniques were proposed for minimising it.…”

Section: Introductionmentioning

confidence: 99%

Control of switched reluctance motor by current profiling under normal and open phase operating condition

Dubravka¹,

Rafajdus²,

Makyš³

et al. 2017

IET Electric Power Applications

Self Cite

View full text Add to dashboard Cite

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“…The works by [7,8] suggest that the most common and critical fault in the stator windings of the SRM is open circuit winding, i.e., open-phase fault.…”

Section: Introductionmentioning

confidence: 99%

On-Line Open-Phase Fault Detection Method for Switched Reluctance Motors with Bus Current Measurement

Guerra¹,

Jimenez-Mondragon²,

Torres³

et al. 2020

Actuators

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This article introduces an on-line fault diagnosis (FD) system to detect and recognize open-phase faults in switched reluctance motors (SRMs). Both tasks, detection and recognition, are based on functions built with the same information but from different sources. Specifically, these functions are constructed from bus current measurement provided by a sensor and from the estimate of such a current provided by an extended Kalman filter (EKF) that performs the estimation from only rotor angular position measurements. In short, the FD system only requires two measurements for employment: bus current and angular position. In order to show its efficacy, results from numerical simulations (performed in a virtual test bench) are presented. Specifically, these simulations involve the dynamics of the SRM, including the magnetic phenomena caused by the analyzed faults. The motor dynamics were obtained with finite element simulations, which guarantee results close to the actual ones.

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“…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. Approaches using phase current reconstruction schemes were proposed in [19], [20].…”

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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Design of fault tolerant control technique for SRM drive

Cited by 9 publications

References 9 publications

Control of switched reluctance motor by current profiling under normal and open phase operating condition

Control of switched reluctance motor by current profiling under normal and open phase operating condition

On-Line Open-Phase Fault Detection Method for Switched Reluctance Motors with Bus Current Measurement

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

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