Comparative Design and Analysis of New Type of Flux-Intensifying Interior Permanent Magnet Motors With Different &lt;italic&gt;Q&lt;/italic&gt;-Axis Rotor Flux Barriers

Zhu, Xiaoyong; Wu, Wenye; Shen, Yang; Xiang, Zixuan; Quan, Li

doi:10.1109/tec.2018.2837119

Cited by 54 publications

(23 citation statements)

References 21 publications

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“…3, a high degree of freedom exists when designing a rotor for IPM machines with V‐shaped PMs. Investigated design parameters are chosen as a result of experience gained through numerous investigations and comprehensive literature [6–48]. On the other hand, other key parameters, such as stator outer diameter, stator slot geometry, shaft diameter, air‐gap length,

D_{2}

normalH R_{i b}

and

w_{s}

have not been considered in this paper because of these reasons: (i) their predicted obvious and/or insignificant effects (particularly due to the leakage flux); (ii) limited effects as a consequence of existing of mechanical constrains; (iii) their very limited range; (iv) not reasonable or possible to investigate its individual effect.…”

Section: Influences Of Design Parameters On Fw Performance Of Nsw Ipmmentioning

confidence: 99%

“…The steady state and FW performance characteristics of IPM machines are primarily affected by magnetic design, depending on stator/rotor topology and excitation, and sophisticated FW control techniques. From magnetic design point of view, extensively employed performance improvement methods, particularly for FW operation, are classified as follows: Winding topologies [10–16]; PM layer number, shape and position [17–23]; Flux barrier configuration and position [24–29]; PM segmentation [19, 30–34]; PM skewing [35–38]; Novel rotor topology [39–41]; Rotor shape optimisation [42–45]; Other techniques, such as excitation, axial lamination, damper bars and so on [31, 46–48]. …”

Section: Introductionmentioning

confidence: 99%

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Influence of design parameters on flux‐weakening performance of interior permanent magnet machines with novel semi‐overlapping windings

Gündoğdu

Kömürgöz

2020

IET Electric Power Applications

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This study performs a design and parametric study of interior permanent‐magnet (IPM) machines equipped with novel semi‐overlapping windings (NSWs). The influence of the key design parameters including; number of turns per phase, stack length, distance and angle between V‐shaped magnets, rotor yoke thickness, magnetic bridge width and thickness and number of magnet segments on the flux‐weakening (FW) performance characteristics are evaluated in detail. The influence of material of segmentation (material of bridge namely, air or iron) is also considered. A combination of analytical calculation‐based program and a time‐stepping 2D finite‐element analysis based program are employed to evaluate the FW characteristics. The accuracy of the FW calculations, particularly the performance at high‐speed regions, is verified over changes in torque components; namely reluctance and permanent magnet (PM), inductance components, PM flux coefficient and inverse saliency ratio due to the change in considered design parameter. The electromagnetic torque, torque ripple, output power and FW capability are investigated by parametric analyses. Moreover, the power losses and efficiency maps together FW curves are calculated for the optimal NSW IPM machine. The experimental measurements, taken from manufactured prototype, verify that the performed analyses and methods described in this study are accurate and reliable.

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D_{2}

normalH R_{i b}

and

w_{s}

Section: Influences Of Design Parameters On Fw Performance Of Nsw Ipmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of design parameters on flux‐weakening performance of interior permanent magnet machines with novel semi‐overlapping windings

Gündoğdu

Kömürgöz

2020

IET Electric Power Applications

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“…L q -L d is a positive value as the phase current below 263 A and then is negative with the further growth of the phase current, which is much different from conventional three-phase PMSM. It means that the modular three-phase PMSM can run with a positive d-axis current (i d ), which is beneficial to realize the flux-intensifying effect and reduce the demagnetization risk of the module three-phase PMSM under the high current amplitude condition or the condition that the motor frequently starts [25,26]. Figure 14 depicts that the d-q axis inductances of motor unit 1 with different phase current con tions varied from 0 to 400 A. Additionally, the inductance difference between Lq and Ld is also in stigated.…”

Section: Winding Inductance Characteristices Of Modular Three-phase Pmsmmentioning

confidence: 99%

Characteristic Analysis and Predictive Torque Control of the Modular Three-Phase PMSM for Low-Voltage High Power Application

Rao

Zhang

et al. 2020

Energies

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In this study, a novel modular three-phase permanent magnet synchronous motor (PMSM) is proposed for low-voltage high power applications. The proposed modular three-phase PMSM has an independent segregated three-phase winding configuration, facilitating the implementation of the control algorithm. Firstly, on the basis of the electromagnetic properties, the mathematical model of the modular three-phase PMSM is established, considering the asymmetrical mutual inductances investigated by finite element analysis (FEA). Then, the predictive torque control (PTC) method combining the inductance characteristics of modular three-phase PMSM is developed, and excellent performance is obtained by adjusting the stator flux and torque. Finally, simulation and experiment are performed, and the results show that the proposed novel modular three-phase PMSM with the PTC method exhibits excellent control performance, and small stator current total harmonic distortion (THD).

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“…Instead, in Type 2, the d-axis armature flux and PM flux are in the same direction and then the d-axis flux is intensified. The motors that employ flux intensifying such as the Type 2 ones have been called the flux intensifying IPMSM [38,40,41]. However, in this paper, less PM is used for the rotor with a dominant reluctance torque, and therefore they should still be considered as a kind of SynRMs.…”

Section: Demagnetization Analysismentioning

confidence: 99%

Performance Analysis of Synchronous Reluctance Motor with Limited Amount of Permanent Magnet

Ngo

Hsieh

2019

Energies

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This paper analyzes the performance of a synchronous reluctance motor (SynRM) equipped with a limited amount of a permanent magnet (PM). This is conventionally implemented by inserting PMs in rotor flux barriers, and this is often called the PM-assisted SynRM (PMa-SynRM). However, common PMa-SynRMs could be vulnerable to irreversible demagnetization. Therefore, motor performance and PM demagnetization should be simultaneously considered, and this would require the PM to be properly arranged. In this paper, various rotor configurations are carefully studied and compared in order to maximize the motor performance, avoid irreversible demagnetization and achieve higher PM utilization. Moreover, the field weakening capability is investigated and improved by regulating armature excitation. A particular rotor type with flux intensification was found to possess higher PM utilization, lower demagnetization possibility with fairly high performance. Thus, suitable rotor configurations are recommended for certain applications.

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Comparative Design and Analysis of New Type of Flux-Intensifying Interior Permanent Magnet Motors With Different <italic>Q</italic>-Axis Rotor Flux Barriers

Cited by 54 publications

References 21 publications

Influence of design parameters on flux‐weakening performance of interior permanent magnet machines with novel semi‐overlapping windings

Influence of design parameters on flux‐weakening performance of interior permanent magnet machines with novel semi‐overlapping windings

Characteristic Analysis and Predictive Torque Control of the Modular Three-Phase PMSM for Low-Voltage High Power Application

Performance Analysis of Synchronous Reluctance Motor with Limited Amount of Permanent Magnet

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