A New Model of Synchronous Machine Internal Faults Based on Winding Distribution

Tu, Xiaoping; Dessaint, L.-A.; Kahel, Mohammed El; Barry, Alpha Oumar

doi:10.1109/tie.2006.885125

Cited by 57 publications

(23 citation statements)

References 12 publications

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“…The resultant over set ABC is derived by substituting (9) and (10) into (4) as: = − ( + − ) (11) Zero sequence current cannot circulate, therefore: + + = 0 (12) Based on (11) and (12), it can be deduced that:…”

Section: D Table Constructionmentioning

confidence: 99%

“…A five phase synchronous reluctance machine with open circuit faults was modelled in the synchronous frame in [11]. Other approaches use the winding function to calculate inductances which are derived by integrating the product of turn function, winding function and airgap permeance [12,13]. A novel field reconstruction method was used to analyze the machine performance and vibration [14].…”

Section: Introductionmentioning

confidence: 99%

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A General Modeling Technique for a Triple Redundant 3 × 3-Phase PMA SynRM

Wang

Griffo

et al. 2018

IEEE Trans. Ind. Electron.

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Abstract-A general modelling technique is proposed for a triple redundant 3x3-phase permanent magnet assisted synchronous reluctance machine (PMA SynRM). The magneto-motive force (MMF) of the machine is divided into three parts each associated with one 3-phase set. The MMF of each 3-phase set can be described by four variables: d-and q-axis components of the currents, the rotor angle and an MMF offset component which captures the mutual coupling between three 3-phase sets. Therefore the complete machine behavior in all operating conditions can be captured by means of 4-dimensional (4D) tables, which store the flux linkage and torque information. The 4D tables are produced by finite element (FE) analysis for one 3-phase set. As a result, the machine behavior can be predicted by interpolating the 4D tables. The model is capable of representing healthy and fault operations, including unequal current operation in three 3-phase sets, and offers great flexibility for performance assessment, post fault control and fault detection. Its effectiveness is verified by extensive FE simulation and experimental tests in different operation modes. Index Terms-Fault tolerant, fault modelling, permanent magnet assisted synchronous reluctance machine, multi-phase machine, magneto-motive force, MMF reconstruction.

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Section: D Table Constructionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A General Modeling Technique for a Triple Redundant 3 × 3-Phase PMA SynRM

Wang

Griffo

et al. 2018

IEEE Trans. Ind. Electron.

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“…To investigate the performance of the generator under different fault conditions, the inductances of the rotor and stator circuits must be calculated precisely [25,26]. Due to the symmetrical distribution of the windings in the generators slots, the inductance profile of stator windings will have identical variation with a phase shift in the presence of the eccentricity.…”

Section: Effects Of De Fault On Inductances Profile Of Synchronous Gementioning

confidence: 99%

Time-Stepping Finite-Element Analysis of Dynamic Eccentricity Fault in a Three-Phase Salient Pole Synchronous Generator

Faiz¹,

Babaei²,

Nazarzadeh³

et al. 2010

PIER B

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Abstract-In this paper, two-dimensional time-stepping finiteelement (TSFE) method is performed for modeling and analyzing of a salient pole synchronous generator with different degree of dynamic eccentricity (DE) fault. TSFE analysis is used to describe the influence of DE fault on the flux distribution within the generator and no-load voltage profiles at low and high field current is obtained for healthy and faulty cases. Comparing the magnetic flux distribution of healthy and faulty generators helps to detect the influence of DE fault. Also, it can be seen at no-load condition with low excitation current, the effect of the eccentricity is considerable compared to that of the rated excitation current. Since the calculation of inductances of the machine is the most important step for fault analysis and diagnosis, the self-and mutualinductances of the stator phases and rotor windings are calculated in the eccentric generator. Double periodic phenomenon is observed in inductances profile of stator phases due to the DE fault. Finally, spectrum analysis of stator current of two generators with different design parameters is used to diagnosis the significant harmonics in the presence of DE fault.

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“…Alternatively in [9][10][11], the synchronous machine is assumed to be formed from several electric loops and the inductances are calculated on a coil-by-coil basis. The capacitive effect in modeling of the faulted machine is also considered in [12] and mutual inductance of faulted machine was precisely calculated by use of winding function approach in [13]. The method requires design data such as number of slots and windings structure.…”

Section: Introductionmentioning

confidence: 99%

A Faulty Synchronous Machine Model for Efficient Interface with Power System

Koochaki¹

2015

Journal of Electrical Engineering and Technology

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-This paper presents a new approach for simulating the internal faults of synchronous machines using distributed computing and Large Change Sensitivity (LCS) analysis. LCS analysis caters for a parallel solution of 3-phase model of a faulted machine within the symmetrical componentbased model of interconnected network. The proposed method considers dynamic behavior of the faulty machine and connected system and tries to accurately solve the synchronous machine's internal fault conditions in the system. The proposed method is implemented in stand-alone FORTRAN-based phasor software and the results have been compared with available recordings from real networks and precisely simulated faults by use of the ATP/EMTP as a time domain software package. An encouraging correlation between the simulation results using proposed method, ATP simulation and measurements was observed and reported. The simplified approach also enables engineers to quickly investigate their particular cases with a reasonable precision.

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A New Model of Synchronous Machine Internal Faults Based on Winding Distribution

Cited by 57 publications

References 12 publications

A General Modeling Technique for a Triple Redundant 3 × 3-Phase PMA SynRM

A General Modeling Technique for a Triple Redundant 3 × 3-Phase PMA SynRM

Time-Stepping Finite-Element Analysis of Dynamic Eccentricity Fault in a Three-Phase Salient Pole Synchronous Generator

A Faulty Synchronous Machine Model for Efficient Interface with Power System

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