Short-circuit fault-tolerant control for five-phase fault-tolerant permanent magnet motors with trapezoidal back-EMF

Chen, Qian; Xia, Yuhang; Wang, Jiabin; Zhao, Wenxiang; Liu, Guohai

doi:10.1016/j.fmre.2021.09.009

Cited by 6 publications

(4 citation statements)

References 33 publications

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“…However, the PI regulator is inappropriate for monitoring the alternating signals. So, deadbeat predictive current FOC is suggested to achieve fault-tolerant control when a singlephase short circuit fault exists [10] [24]. The FTC technique deals with SC fault in two aspects; first, it applies an opencircuit fault tolerant strategy.…”

Section: Fault-tolerant Field-oriented Control Modelmentioning

confidence: 99%

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Speed and Position Estimation for 5-ph PMSM Using SOGI Based on SMO Considering Short-Circuit Fault

Farahat,

Liu,

Liu

et al. 2024

IEEE Access

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To cancel harmonics and get fundamental back EMFs for precise rotor position and speed estimations under short-circuit fault, this article introduces a new sensorless fault-tolerant control method for 5-phase PMSM using a sigmoid sliding mode observer (SSMO) with a second-order generalized integrator (SOGI) to replace the LPF. For tuning SOGI, two different frequency estimators are proposed. First, a closed-loop synchronous reference frame phase-locked loop (SRF-PLL) is fed back to SOGI for frequency adaptation based on two orthogonally estimated filtered-back EMFs. Second, an independent open-loop frequency estimator (OLFE), based on two-estimated adversely distorted back EMFs, is proposed to ensure simple implementation. The speed and rotor position estimations are eventually accomplished from the quadrature PLL. Both SOGI-SRF-PLL and SOGI-OLFE-based SMO achieve satisfactory estimation performance under SC fault conditions, eliminate chattering issues, have good tracking errors, and have strong robustness against load disturbance. The results of simulation and practical experiments proved the effectiveness of these methods in all conditions.INDEX TERMS Multi-phase PMSM, single-phase short-circuit fault, sensorless fault tolerant control, sliding mode observer SMO, second-order generalized integrator SOGI.

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Section: Fault-tolerant Field-oriented Control Modelmentioning

confidence: 99%

“…To accurately track the reference currents, the deadbeat current predictive controller is more superior to the PI controller. The fault-tolerant reference voltages udr, uqr, and uzr may be expressed using the deadbeat current predictive controller as follows [24]:…”

Section: Figure 1 Graphic Diagram Of Single-phase Short-circuit Fault...mentioning

confidence: 99%

Speed and Position Estimation for 5-ph PMSM Using SOGI Based on SMO Considering Short-Circuit Fault

Farahat,

Liu,

Liu

et al. 2024

IEEE Access

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“…Another important topic is state estimation; research activities employ for instance interacting multiple model estimation algorithms [10]. Rule-based expert systems again receive attention such as in the fault diagnosis of mechanical systems [11]. Further research is involved with diagnostic row reasoning methods [12].…”

Section: State Of the Art In Fault-tolerant Controlmentioning

confidence: 99%

Algorithms and Methods for the Fault-Tolerant Design of an Automated Guided Vehicle

Stetter

2022

Sensors

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Researchers around the globe have contributed for many years to the research field of fault-tolerant control; the importance of this field is ever increasing as a consequence of the rising complexity of technical systems, the enlarging importance of electronics and software as well as the widening share of interconnected and cloud solutions. This field was supplemented in recent years by fault-tolerant design. Two main goals of fault-tolerant design can be distinguished. The first main goal is the improvement of the controllability and diagnosability of technical systems through intelligent design. The second goal is the enhancement of the fault-tolerance of technical systems by means of inherently fault-tolerant design characteristics. Inherently fault-tolerant design characteristics are, for instance, redundancy or over-actuation. This paper describes algorithms, methods and tools of fault-tolerant design and an application of the concept to an automated guided vehicle (AGV). This application took place on different levels ranging from conscious requirements management to redundant elements, which were consciously chosen, on the most concrete level of a technical system, i.e., the product geometry. The main scientific contribution of the paper is a methodical framework for fault-tolerant design, as well as certain algorithms and methods within this framework. The underlying motivation is to support engineers in design and control trough product development process transparency and appropriate algorithms and methods.

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“…Sensorless speed estimate methods rely on the observation of specific motor parameters and the use of mathematical models to determine the rotor speed. Stator current, voltage, and back electromotive force (EMF) or flux are typical estimation parameters [ 9 , 10 ]. The first technique depends on machine model comprising the Model Reference Adaptive System (MRAS) [11] , [12] , [13] , [14] , Extended Kalman Filtering approaches (EKF) [15] , [16] , [17] , [18] , [19] , [20] , [21] , [22] , [23] , [24] , Speed Estimators (SE) [25] , [26] , [27] , [28] , Sliding Mode Observer (SMO) [ 26 , [29] , [30] , [31] , [32] , [33] , [34] , [35] , [36] ], reduced order nonlinear observer [ 23 , [36] , [37] , [38] ], Artificial Intelligence methods (AI) [39] , [40] , [41] , [42] , [43] , Direct calculation and Adaptive observers [44] , [45] , [46] , [47] , [48] .…”

Section: Introductionmentioning

confidence: 99%

Review of speed estimation algorithms for three- phase induction motor

Elbarbary,

Al-Harbi,

Al-Gahtani

et al. 2024

MethodsX

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Short-circuit fault-tolerant control for five-phase fault-tolerant permanent magnet motors with trapezoidal back-EMF

Cited by 6 publications

References 33 publications

Speed and Position Estimation for 5-ph PMSM Using SOGI Based on SMO Considering Short-Circuit Fault

Speed and Position Estimation for 5-ph PMSM Using SOGI Based on SMO Considering Short-Circuit Fault

Algorithms and Methods for the Fault-Tolerant Design of an Automated Guided Vehicle

Review of speed estimation algorithms for three- phase induction motor

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