Pull-in criterion for reluctance motors

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Pull-in criterion for reluctance motors

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The behaviour of reluctance machines during synchronisation and attempted synchronisation is carefully examined. Critical modes of synchronisation are identified, and, based on these, a pull-in criterion is developed. This enables the possible combinations of inertia and load torque that any given motor can synchronise to be simply and reliably predicted. Evaluation of the criterion can be carried out manually, making it entirely suitable for routine design purposes. The accuracy of the criterion is established by comparison with a wide range of transient solutions.

Inspec keywords: reluctance motors; torque; synchronisation

Other keywords: synchronisation; critical modes; pull in criterion; reluctance motors

Subjects: Synchronous machines

References

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      • M.E. Talaat . Steady-state and transient synthesis of 3-phase reluctance motors. Trans. Am. Inst. Elec. Eng. , 1963 - 1970
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      • P.J. Lawrenson , R.M. Mathur . Asynchronous performance of reluctance machines allowing for irregular distributions of rotor conductors. Proc. IEE , 3 , 318 - 324
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      • D.R. Shoults , S.B. Crary , A.H. Lauder . Pull-in characteristics of synchronous motors. Trans. Am. Inst. Elec. Eng. , 1385 - 1395
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      • K. Burian . Pulling-into-step of reluctance synchronous motors. IEEE Trans. , 349 - 352
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      • J.M. Stephenson , P.J. Lawrenson . Average asynchronous torque of synchronous machines with particular reference to reluctance machines. Proc. IEE , 6 , 1049 - 1051
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      • H.E. Edgerton , G.S. Brown , K.J. Germshausen , R.W. Hamilton . Synchronous-motor pulling-into-step phenomena. Trans. Am. Inst. Elec. Eng. , 342 - 351
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      • J.F.H. Douglas . Pull-in criterion for reluctance motors. Trans. Am. Inst. Elec. Eng. , 139 - 142
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      • Mathur, R.M.: `The starting performance of segmental-rotor reluctance machines', 1969, Ph.D. thesis, University of Leeds.
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