Non-linear analytical modelling and optimisation of a 12/8 rotor excited flux-switching machine

被引：14

作者：

Mohammadi Ajamloo, Akbar ^{[1
]}

Ghaheri, Aghil ^{[2
]}

Shirzad, Hossein ^{[2
]}

Afjei, Ebrahim ^{[2
]}

机构：

[1] KN Toosi Univ Technol, Dept Elect Engn, Tehran, Iran

[2] Shahid Beheshti Univ, Fac Elect Engn, Tehran, Iran

来源：

IET ELECTRIC POWER APPLICATIONS | 2020年 / 14卷 / 09期

关键词：

torque; permanent magnet machines; magnetic circuits; rotors; optimisation; equivalent circuits; magnetic flux; finite element analysis; electric potential; permanent magnet motors; Taguchi methods; harmonic distortion; rotor excited flux-switching permanent magnet machines; rotor transition; fringing fluxes; nonlinear magnetic equivalent circuit; low computational time; machine performance; rotor notch; rotor segments; machine voltage THD; intrinsic unbalanced voltage waveform; low permanent magnet consumption; exhibiting high power density; REFSPM; MULTIOBJECTIVE OPTIMIZATION; DESIGN;

D O I：

10.1049/iet-epa.2019.0732

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Rotor excited flux-switching permanent magnet machines (REFSPMs) have been recently introduced exhibiting high power density and low permanent magnet consumption. Despite the advantages, 12/8 configuration of REFSPM has an intrinsic unbalanced voltage waveform due to the existence of even-order harmonics. Aiming to improve the machine voltage THD, using notches on the rotor segments is proposed. To study the effects of the rotor notch on machine performance with low computational time, the non-linear magnetic equivalent circuit is developed taking into account the effects of fringing fluxes, iron saturation, and rotor transition. An optimisation procedure based on Taguchi method is applied to minimise the voltage THD value taking the effects of uncontrollable factors into account. Finally, the REFSPM is prototyped and the measured results are compared with the analytical and numerical results.

引用

页码：1592 / 1603

页数：12

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