Eigenvalue analysis of six-phase synchronous motor for small signal stability

Iqbal, Arif; Singh, Gyanendra Kumar

doi:10.1080/09398368.2018.1425241

Cited by 6 publications

(8 citation statements)

References 17 publications

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“…Linearized modeling of a six-phase synchronous motor was carried out by considering some important simplifying assumptions [15][16][17][18] : the two three-phase stator winding sets, namely, abc and xyz, are identical and symmetrical; the effect of harmonics is neglected; and saturation and hysteresis effects are ignored. Six-phase stator winding of the motor was realized by having two sets of three-phase windings, namely, abc and xyz, that were physically displaced by angle ξ = 30° electrical, i.e., an asymmetrical six-phase stator winding.…”

Section: Linearized Modeling Of Six-phase Synchronous Machinementioning

confidence: 99%

“…Few studies have presented small signal stability analysis of multiphase induction motors, particularly five-phase [13] and six-phase motors [14] . Introductory analysis of a six-phase synchronous motor was presented by the present authors [15] , together with the determination of stability limits for various parametric variations and working conditions [16] . However, a comparative analysis of a synchronous motor with a three-phase and six-phase stator winding configuration has not yet been reported from the stability point of view to the best of the authors' knowledge.…”

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confidence: 99%

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Small signal stability of three-phase and six-phase synchronous motors: A comparative analysis

Singh

Iqbal²

2020

Chin. J. Electr. Eng.

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Small signal stability analysis is conducted for an asymmetrical six-phase synchronous motor in comparison with its equivalent three-phase counterpart. For this purpose, a linearized model of the six-phase synchronous motor is developed using the dq0 approach, which is used in eigenvalue criteria to determine absolute stability in comparison with its equivalent three-phase counterpart. The analysis includes a comparison of the variation in evaluated eigenvalues associated with the stator and rotor sides according to changes in both the three and six-phase machine parameters and working conditions. Key analytical results are experimentally investigated and validated on a test rig.

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Section: Linearized Modeling Of Six-phase Synchronous Machinementioning

confidence: 99%

mentioning

confidence: 99%

Small signal stability of three-phase and six-phase synchronous motors: A comparative analysis

Singh

Iqbal²

2020

Chin. J. Electr. Eng.

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“…The modelling of PMSM may be expressed using machine variables for dynamic characteristic that result in a set of non-linear equations. The nonlinearity is due to the dependency of inductance term on rotor position, which is time dependent (Iqbal and Singh, 2018). So, it is usual practice to carry out the mathematical modelling using d-q variables (Krishnan, 2001; Li et al, 2002).…”

Section: Mathematical Modelling Of Chaotic Pmsmmentioning

confidence: 99%

Chaos control of permanent magnet synchronous motor using simple controllers

Iqbal¹,

Singh

2018

Transactions of the Institute of Measurement and Control

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Owing to the superior properties and stable operation, the Permanent Magnet Synchronous Motor (PMSM) is preferably used in wide industrial applications. But, the stability of motor is found to be dependent on its initial operating condition, showing the chaotic characteristic. Therefore, this paper addresses the chaos control of PMSM by developing four simple but effective controllers, which are mathematically designed by using the principle of Lyapunov’s method for asymptotic global stability. A comparative performance assessment has been carried out for the developed controllers in terms of settling time and peak over shoot. Furthermore, the concept of conventional proportional-integration type controller has been extended to develop two more controllers for chaos control of PMSM. Numerical simulation has been carried out in Matlab environment for performance evaluation of developed controllers. The obtained analytical results have been validated through experimental implementation in real time environment on Multisim/Ultiboard platform.

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“…Digital Object Identifier 10.30941/CESTEMS.2021.00006 space and time harmonics, reduced per phase current with no change in terminal voltage enabling higher power transfer in same frame with higher reliability and higher degree of freedom [4]- [7]. Hence, multiphase machines are now preferably used in various applications, not limited to ship propulsion, electric vehicles, more electric aircraft, electric power generation etc.…”

Section: Introductionmentioning

confidence: 99%

“…On machine side, multiple converters are used to supply the individual three-phase stator winding. Employed converters may be either connected in series enabling to boost up the DC link voltage [23], or in parallel connection for higher reliability and better efficiency [7], [24]. Owing for a successful operation of complete [25], [26], which conceptually simple, more robust towards parametric variation, computationally efficient and easy to implement.…”

Section: Introductionmentioning

confidence: 99%