Evaluating Harmonic Distortions in Brushless Doubly Fed Induction Machines

Strous, Tim D.; Wang, Xuezhou; Polinder, H.; Ferreira, J.A.

doi:10.1109/tmag.2016.2614662

Cited by 19 publications

(15 citation statements)

References 15 publications

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“…In both cases, accurate machine models are needed, for fixing the values of the threshold alarms, for running the model-based fault diagnostic system [ 32 ], or for developing new diagnostic algorithms [ 33 ]. The most accurate machine models are built using the finite elements analysis (FEA) [ 34 ], because it can take into account the actual geometry of the machine, including the asymmetries induced by the fault (eccentric machines), the characteristic of the magnetic materials, which depend on their operating point (saturation, hysteresis), and the configuration of the windings, which can be highly asymmetrical in case of rotor asymmetries or inter-turn short-circuits faults [ 35 ]. However, FEA models demand a great amount of computational resources and computing time [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Partial Inductance Model of Induction Machines for Fault Diagnosis

Pineda-Sánchez

Puche-Panadero

Martínez-Román

et al. 2018

Sensors

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The development of advanced fault diagnostic systems for induction machines through the stator current requires accurate and fast models that can simulate the machine under faulty conditions, both in steady-state and in transient regime. These models are far more complex than the models used for healthy machines, because one of the effect of the faults is to change the winding configurations (broken bar faults, rotor asymmetries, and inter-turn short circuits) or the magnetic circuit (eccentricity and bearing faults). This produces a change of the self and mutual phase inductances, which induces in the stator currents the characteristic fault harmonics used to detect and to quantify the fault. The development of a machine model that can reflect these changes is a challenging task, which is addressed in this work with a novel approach, based on the concept of partial inductances. Instead of developing the machine model based on the phases’ coils, it is developed using the partial inductance of a single conductor, obtained through the magnetic vector potential, and combining the partial inductances of all the conductors with a fast Fourier transform for obtaining the phases’ inductances. The proposed method is validated using a commercial induction motor with forced broken bars.

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Section: Introductionmentioning

confidence: 99%

Partial Inductance Model of Induction Machines for Fault Diagnosis

Pineda-Sánchez

Puche-Panadero

Martínez-Román

et al. 2018

Sensors

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“…Therefore, BDFM can be very useful for two important electrical applications: wind turbine system and electric vehicle. Recent research efforts consider the brushless doubly fed reluctance machine (BDFRM) [5][6][7], the brushless doubly fed induction machine [8][9][10][11], and comparisons between the two [12][13][14]. The BDFRM, as well as other similar machines like flux switching machine, employs a salient rotor structure to induce magnetic coupling between two magnetomotive force (MMF) sources wound on its stator [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Design and torque capability of a ducted rotor brushless doubly fed reluctance machine

Rebeiro

Knight

2018

IET Electric Power Applications

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This study discusses the design strategy and response analysis of the brushless doubly fed reluctance machine (BDFRM) with an aim of commercially feasible implementation with satisfactory performance. In this regard, basic operation theory is reviewed, and a control strategy is proposed to maximise the motor torque capability. A BDFRM design is proposed and simulated for investigation. Subsequently, a prototype machine is built and tested. Predicted simulation torque data is compared with the actual machine data to evaluate the design approach.

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“…In [40], the p 1 /p 2 = 4/6 is the preferred combination for a 3.2 MW BDFM, due to the less coupling of higher space harmonics compared to the p 1 /p 2 = 2/4 combination, and the absence of UMP, which is present in the p 1 /p 2 = 2/3 combination. The lower harmonic content in the 4/6 combination relative to the 2/4 combination is also alluded to in [41], however the PW has the higher pole number. A summary of the relative performances of the 2/3, 2/4 and 4/6 pole pair combinations as described in literature, is given in Table 1.…”

Section: Commonly Used Pole Pair Combinationsmentioning

confidence: 88%

“…In [54], it is stated that the most significant source of torque ripple in BDFMs is the winding distribution space harmonics; the excessive space harmonics present in the nested loop rotor structure being a major culprit. In [41,44,48], it is suggested that increasing the rotor loop spans helps in reducing harmonic content in BDFMs. Also, an increase in rotor loops per nest helps to mitigate space harmonics in BDFMs [27,48].…”

Section: Vibrations and Harmonics Mitigationmentioning

confidence: 99%

A Review of the Advancements in the Design of Brushless Doubly Fed Machines

Olubamiwa

Gule

2022

Energies

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Research interest on brushless doubly fed induction machines (BDFMs) is increasing, as they offer higher reliability compared to doubly fed induction generators (DFIGs) in wind turbines. At the moment, BDFMs do not have a definitive structure nor design process, as literature is rife with different approaches to designing BDFMs. In this paper, a comprehensive review of the design of BDFMs from available literature is conducted. The evolution of cascade induction machine systems to contemporary BDFMs is first illustrated. Pioneering research work in the evolution which have influences on modern BDFM designs are highlighted. Relevant research on different aspects of present day BDFM design are then discussed. BDFM design and optimization methodologies applied in available literature are also explored.

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Evaluating Harmonic Distortions in Brushless Doubly Fed Induction Machines

Cited by 19 publications

References 15 publications

Partial Inductance Model of Induction Machines for Fault Diagnosis

Partial Inductance Model of Induction Machines for Fault Diagnosis

Design and torque capability of a ducted rotor brushless doubly fed reluctance machine

A Review of the Advancements in the Design of Brushless Doubly Fed Machines

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