Investigation of the $dq$-Equivalent Model for Performance Prediction of Flux-Switching Synchronous Motors With Segmented Rotors

Zulu, Ackim; Mecrow, B.C.; Armstrong, Matthew

doi:10.1109/tie.2011.2158043

Cited by 24 publications

(9 citation statements)

References 25 publications

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“…Obviously, the coil self-inductance depends on not only the coil turns, but also the permeance of the relative magnetic circuit, which is influenced by the saturation-effect due to both magnets and armature currents [48]. As shown in Fig.…”

Section: A Apparent Inductances Under Saturated Conditionsmentioning

confidence: 99%

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Mathematical Modeling of a 12-Phase Flux-Switching Permanent-Magnet Machine for Wind Power Generation

Shao

Wang

Dai

et al. 2016

IEEE Trans. Ind. Electron.

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In this paper, a mathematical model of a twelvephase flux-switching permanent magnet (FSPM) machine designed for high-power wind power generation is established and investigated. Firstly, the winding inductances in both stator reference frame and dq-axes reference frame are analyzed. It should be noted that, the characteristics of the twelve-phase winding inductances are different from that of its three-phase counterpart. The largest mutual-inductance is much smaller than half of the self-inductance and most mutual-inductances are negligible, which brings the benefit of improved magnetic isolation between phases and causes the twelfth order inductance matrix to be sparse. Thereafter, an accurate inductance model is established, taking account of the magnetic coupling between adjacent threephase winding sets. Finally, the flux-linkage equation, the voltage equation and the power/torque equation are derived in sequence. The effectiveness of the proposed mathematical model are verified by comparing the theoretical results with 2D finite-element analysis (FEA)-based predictions. The work in this paper lays an important foundation for the control strategy of the twelve-phase FSPM machine. Index Terms-Flux-switching permanent magnet (FSPM), mathematical model, twelve-phase, wind power generation.Manuscript

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Section: A Apparent Inductances Under Saturated Conditionsmentioning

confidence: 99%

“…reference frame, and ψmdq= [ψmd1 ψmq1 ψm01 ψmd2 ψmq2 ψm02 ψmd3 ψ mq3 ψ m03 ψ md4 ψ mq4 ψ m04 ] T . Based on the ready-made mathematical model of a threephase FSPM machine [48], the equations below are easy to get.…”

Section: B Inductances Mathematical Model In Dq Reference Framementioning

confidence: 99%

Mathematical Modeling of a 12-Phase Flux-Switching Permanent-Magnet Machine for Wind Power Generation

Shao

Wang

Dai

et al. 2016

IEEE Trans. Ind. Electron.

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“…Analytical modelling of LFSM is mainly based on finite-element analysis [1,18,19,24], the magnetic equivalent circuit model [27,28] and Fourier analysis [29,30]. Some authors propose synchronous dq frame model of rotary FSMs [31] and LFSMs [32]. Speed control study of LFSM based on this type of dq reference frame model is carried out [33].…”

Section: Introductionmentioning

confidence: 99%

Precise dq model development of linear flux switching motors with segmented secondary for rail transportation applications

Hosseini

Javadi

Vaez‐Zadeh

et al. 2017

IET Electric Power Applications

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A dq model representation of segmented secondary linear flux switching motors (SSLFSMs) is investigated. In these motors, the armature and field windings are both mounted in the primary slots and the secondary is only composed of simple laminated segments. This type of motors inherits both merits of high force density from linear synchronous motors and simple secondary structure from linear induction motors. Due to its simple and consequently low-cost secondary structure, it is applicable to transportation systems like Maglev. Position and speed control of this motor is essential for rail transportation applications. Therefore, derivation of an appropriate analytical model for control purposes is needed. An analytical method to represent the dq model of SSLFSMs is presented. Employing this method, the d-and q-axis inductances and the developed electromagnetic thrust and normal force are calculated. To verify the proposed model, three different finite-element methodbased models are studied and one is chosen as the basis for comparison. All results obtained by the analytical model are verified by this finite-element method-based model. Moreover, a prototype of SSLFSMs is built to validate the study.

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“…Hybrid excited flux-switching machines (HE-FSM) are excellent candidates for wide speed constant power operation thanks to their high torque density and high speed capability (with a robust passive rotor). Also, they inherit the good fault-tolerant ability of alternate PM-excited Flux-Switching machines [9][10] [11] [12]. From literature, different HE-FSM can be listed and classified as series flux-path HE-FSM [13] or as parallels flux-path HE-FSM [14][15] [16].…”

Section: Introductionmentioning

confidence: 99%

A Hybrid-Excited Flux-Switching Machine for High-Speed DC-Alternator Applications

Gaussens

Hoang

Lécrivain

et al. 2014

IEEE Trans. Ind. Electron.

114

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This paper presents a new topology of Hybrid Excited Flux-Switching Machine (HE FSM) with excitation coils located in stator slots (or inner DC windings). After describing the three phase structure to be investigated, the working principle is discussed and main electromagnetic performances are simulated by Finite Element (FE) Analysis. It is demonstrated that the airgap field can be easily controlled which is interesting for variablespeed applications. Finally, a prototype having 12 stator poles and different rotor teeth number (10 or 14) was built. Experiments were performed validating FE simulations and the operation principle. Finally, the thermal behavior of the prototype machine is investigated through experiments. It is shown that up to 12000rpm, the thermal stabilization is achieved, making this topology an excellent candidate for high-speed applications.Index Terms-Brushless machine, finite element analysis, hybrid excited, flux-switching.

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Investigation of the $dq$-Equivalent Model for Performance Prediction of Flux-Switching Synchronous Motors With Segmented Rotors

Cited by 24 publications

References 25 publications

Mathematical Modeling of a 12-Phase Flux-Switching Permanent-Magnet Machine for Wind Power Generation

Mathematical Modeling of a 12-Phase Flux-Switching Permanent-Magnet Machine for Wind Power Generation

Precise dq model development of linear flux switching motors with segmented secondary for rail transportation applications

A Hybrid-Excited Flux-Switching Machine for High-Speed DC-Alternator Applications

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