Abstract
This chapter deals with analytical modelling of the equivalent airgap function in a FSCW IPM machine which is later used for calculation of the inductances and the stator flux density in the airgap. The conventional equivalent airgap function is first introduced. A novel equivalent airgap function is then proposed that is based on the specific characteristics of an FSCW stator and the analytical model of the non-homogeneous magnetic saturation of the rotor iron that was previously proposed in Chapter 4. The inductances of the machine and the stator flux density in the airgap are then analytically calculated using the proposed equivalent airgap function and the MMF obtained in Chapter 2. The results are validated through a case-study using FEA and experimental measurements of the prototype FSCW IPM machine.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
P.B. Reddy, A.M. El-Refaie, K.K. Huh, J.K. Tangudu, T.M. Jahns, Comparison of interior and surface PM machines equipped with fractional-slot concentrated windings for hybrid traction applications. IEEE Trans. Energy Convers. 27, 593–602 (2012)
R. Dutta, M.F. Rahman, L. Chong, Winding inductances of an interior permanent magnet (IPM) machine with fractional slot concentrated winding. IEEE Trans. Magn. 48, 4842–4849 (2012)
J. Pyrhonen, T. Jokinen, V. Hrabovcová, Design of Rotating Electrical Machines (Wiley, 2009)
P.C. Krause, O. Wasynczuk, S.D. Sudhoff, S. Pekarek, Analysis of Electric Machinery and Drive Systems, vol. 75 (Wiley, 2013)
A.M. El-Refaie, Z.Q. Zhu, T.M. Jahns, D. Howe, Winding inductances of fractional slot surface-mounted permanent magnet brushless machines, in Industry Applications Society Annual Meeting, 2008, IAS ‘08 (IEEE, 2008), pp. 1–8
J. Staszak, Determination of slot leakage inductance for three-phase induction motor winding using an analytical method. Arch. Electr. Eng. 62, 569–591 (2013)
B. Prieto, M. Martinez-Iturralde, L. Fontan, I. Elosegui, Analytical calculation of the slot leakage inductance in fractional-slot concentrated-winding machines. IEEE Trans. Ind. Electron. 2742–2752 (2015)
B.N. Cassimere, S.D. Sudhoff, D.H. Sudhoff, Analytical design model for surface-mounted permanent-magnet synchronous machines. IEEE Trans. Energy Convers. 24, 347–357 (2009)
G. Dajaku, D. Gerling, Stator slotting effect on the magnetic field distribution of salient pole synchronous permanent-magnet machines. IEEE Trans. Magn. 46, 3676–3683 (2010)
X. Hung Vu, D. Lahaye, H. Polinder, J.A. Ferreira, Influence of stator slotting on the performance of permanent-magnet machines with concentrated windings. IEEE Trans. Magn. 49, 929–938 (2013)
L. Qi, F. Tao, W. Xuhui, Armature-reaction magnetic field analysis for interior permanent magnet motor based on winding function theory. IEEE Trans. Magn. 49, 1193–1201 (2013)
L. Chong, R. Dutta, M.F. Rahman, Design of a highly efficient 1 kW concentric wound IPM machine with a very wide constant power speed range, in Proceedings of the IPEC (2010), pp. 1956–1961
IEEE standard procedure for obtaining synchronous machine parameters by standstill frequency response testing, in IEEE Standard 115A-1987, ed.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this chapter
Cite this chapter
Farshadnia, M. (2018). Calculation of Airgap Function and Inductance in Fractional-Slot Concentrated-Wound Interior Permanent Magnet Machines. In: Advanced Theory of Fractional-Slot Concentrated-Wound Permanent Magnet Synchronous Machines. Springer Theses. Springer, Singapore. https://doi.org/10.1007/978-981-10-8708-0_5
Download citation
DOI: https://doi.org/10.1007/978-981-10-8708-0_5
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-8707-3
Online ISBN: 978-981-10-8708-0
eBook Packages: EngineeringEngineering (R0)