A Simple, Fast, and Robust Open-Phase Fault Detection Technique for Six-Phase Induction Motor Drives

Durán, Mario J.; González-Prieto, Ignacio; Rios-Garcia, Natalia; Barrero, Federico

doi:10.1109/tpel.2017.2670924

Cited by 120 publications

(109 citation statements)

References 41 publications

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“…Signal equal to zero in normal operation: either by considering error between signal in fault and signal in normal operation [20], [28] or by considering a physical signal [18], [22] which is intrinsically equal to zero in normal operation multiphase…”

Section: Series-connected Pmsms Post Fault Operation Analysismentioning

confidence: 99%

“…This sensitivity implies that the currents in the planes not associated to the torque production are reliable variables for FDI. Such FDI has been proposed for five-phase synchronous machines [18]- [20], and five and six-phase induction machines [21]- [22]. This paper investigates the adaptation of the FDI presented in [18] to series-connected machine drives.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Inverter fault diagnosis of an electrical series‐connected two sinusoidal six‐phase permanent magnet machines drive

Moraes

Trabelsi

Nguyen

et al. 2020

IET Electric Power Applications

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This paper investigates a real-time fault diagnostic of a transportation system which needs two drives with faulttolerance capabilities. Because of constraints on the mass of the system and on the cost of the Voltage Source Inverter (VSI), a drive with two Six-Phase Permanent Magnet Synchronous Machines (PMSM) in series-connection supplied by two six-leg inverters is chosen. Despite the serial -connection, independent control of the two machines and fault -tolerance to openswitch fault is ensured. Nevertheless, a Fault Detection Identification (FDI) process is required for analysis and/or control reconfiguration. The proposed FDI is based on the combination of different criteria obtained from the two zero-sequence currents and from the normalized currents mapped into two frames defined by the Concordia Transformation. Results obtained from simulation and experimental tests show the effectiveness of the proposal.

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Section: Series-connected Pmsms Post Fault Operation Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Inverter fault diagnosis of an electrical series‐connected two sinusoidal six‐phase permanent magnet machines drive

Moraes

Trabelsi

Nguyen

et al. 2020

IET Electric Power Applications

View full text Add to dashboard Cite

show abstract

“…From the efficiency point of view, the most widely selected approach is to adapt the flux to reduce the stator copper losses. Focusing on these losses, they can be expressed as the product of stator resistance and the squared RMS (Root Mean Square) value of phase currents: This natural fault tolerance concept has introduced a new paradigm in the field of fault-tolerant multiphase drives, where a mandatory post-fault reconfiguration of the healthy control scheme has been historically used in the event of an OPF [22][23][24][25]. Conventional post-fault strategies reconfigure the control scheme according to the fault localization in order to avoid the controllers' conflicts.…”

Section: Efficient Model Predictive Control Based On Virtual Voltage mentioning

confidence: 99%

Efficient Model Predictive Control with Natural Fault-Tolerance in Asymmetrical Six-Phase Induction Machines

et al. 2019

Self Cite

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Multiphase machines allow enhancing the performance of wind energy conversion systems from the point of view of reliability and efficiency. The enhanced robustness has been traditionally achieved with a mandatory post-fault control reconfiguration. Nevertheless, when the regulation of x-y currents in multiphase drives is done in open-loop mode, the reconfiguration can be avoided. As a consequence, the reliability of the system increases because fault detection errors or delays have no impact on the post-fault performance. This capability has been recently defined as natural fault tolerance. From the point of view of the efficiency, multiphase machines present a better power density than three-phase machines and lower per-phase currents for the same voltage rating. Moreover, the implementation of control strategies based on a variable flux level can further reduce the system losses. Targeting higher reliability and efficiency for multiphase wind energy conversion systems, this work proposes the implementation of an efficient model predictive control using virtual voltage vectors for six-phase induction machines. The use of virtual voltage vectors allows regulation of the x-y currents in open-loop mode and achieving the desired natural fault tolerance. Then, a higher efficiency can be achieved with a simple and universal cost function, which is valid both in pre- and post-fault situations. Experimental results confirm the viability and goodness of the proposal.

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“…Keeping these applications in mind, several recent works have focused on the development of high-performance, fault-tolerant control schemes for induction machines (IMs) and permanent magnet synchronous machines (PMSMs) [4][5][6][7]. The diagnoses focus on rapidity and accuracy [8,9], and adoption of effective isolation measures, such that a corresponding fault-tolerant control scheme can be adopted. The important goal of a fault-tolerant control strategy is to be able to maintain the normal index operation effectively and stably after fault isolation.…”

Section: Introductionmentioning

confidence: 99%

Unified Fault-tolerant Control Strategy with Torque Ripple Compensation for Five-phase Permanent Magnet Synchronous Motor Based on Normal Decoupling

et al. 2019

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In this paper, the decoupling matrix in a five-phase permanent magnet synchronous motor (FPMSM) is rebuilt and changed, according to different open-phase conditions, which complicate the switch and control algorithm. This paper proposes a unified fault-tolerant control strategy with decoupling transformation matrix, effectively suppressing the torque ripple for several open-phase faults. The current algorithms for different open-phase faults are demonstrated; torque ripple, especially, is analyzed with third harmonic magnetomotive force (MMF). The unified current control law is expressed with two adjustable coefficients, which are regulated for torque ripple compensation. As the current control equation remains unchanged, the fault-tolerant can smoothly switch from normal to fault condition, only with different coefficients. The proposed method with torque compensation (TC) can realize effective suppression of torque ripple. The decoupling relationship between open-phase control laws and fault-tolerant current is verified by simulation. The torque ripple of fault-tolerant and effect of torque compensation (TC) under all fault-tolerant conditions are simulated by finite element simulation. The stability of switching and correctness of torque compensation are verified by experiments.

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A Simple, Fast, and Robust Open-Phase Fault Detection Technique for Six-Phase Induction Motor Drives

Cited by 120 publications

References 41 publications

Inverter fault diagnosis of an electrical series‐connected two sinusoidal six‐phase permanent magnet machines drive

Inverter fault diagnosis of an electrical series‐connected two sinusoidal six‐phase permanent magnet machines drive

Efficient Model Predictive Control with Natural Fault-Tolerance in Asymmetrical Six-Phase Induction Machines

Unified Fault-tolerant Control Strategy with Torque Ripple Compensation for Five-phase Permanent Magnet Synchronous Motor Based on Normal Decoupling

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