New formulation of Loss-Surface Model for accurate iron loss modeling at extreme flux density and flux variation: Experimental analysis and test on a high-speed PMSM

Vo, Anh-Tuan; Fassenet, Marylin; Préault, Valentin; Espanet, Christophe; Kedous‐Lebouc, Afef

doi:10.1016/j.jmmm.2022.169935

Cited by 9 publications

(5 citation statements)

References 25 publications

(39 reference statements)

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“…When the speed is 80,000 rpm, the 4th-order frequency is 5333. 33 Hz and the 6th-order frequency is 8000 Hz. Electromagnetic torque components are smaller in amplitude at higher-order frequencies and account for a smaller percentage of the electromagnetic torque.…”

Section: Discussionmentioning

confidence: 99%

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Electromagnetic Torque Components Analysis of Ultra-High-Speed Permanent-Magnet Synchronous Motor for Fuel Cell Air Compressor

Zhou,

Zhang,

et al. 2024

Actuators

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The ultra-high-speed electric air compressor (UHSEAC) is affected by the electromagnetic torque components of the ultra-high-speed permanent magnet synchronous motor (UHSPMSM) during wide-range speed regulation, resulting in intense speed fluctuation. Electromagnetic torque components are generated by the effects of permanent magnet field harmonics, stator slotting, and current harmonics. It is very important to conduct simulation comparisons and theoretical descriptions of different sources of pulsation factors. In this paper, firstly, the electromagnetic torque model of UHSPMSM with a rated speed of 80,000 rpm is constructed and verified by an experimental bench. Secondly, the electromagnetic torque components of UHSPMSM are extracted on the basis of the electromagnetic torque model. Finally, the electromagnetic torque components’ characteristic law is investigated under different ultra-high-speed operating conditions. The results show that under ultra-high-speed operation, the frequency and amplitude of electromagnetic torque components become larger with increasing speed. And the amplitude of electromagnetic torque components becomes larger with increasing torque. This paper constructs the observation object of the high-frequency state observer and does the preliminaries for the design of the UHSEAC controller.

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Section: Discussionmentioning

confidence: 99%

“…Because the UHSPMSM has the advantages of high efficiency and small size [29,30], it used to be the power source. The UHSPMSM is mainly composed of the housing, stator, and rotor [31][32][33]. Slots are present on the inner surface of the stator, and three-phase excitation windings, a/b/c are erected in the slots.…”

Section: Uhseac Structurementioning

confidence: 99%

Electromagnetic Torque Components Analysis of Ultra-High-Speed Permanent-Magnet Synchronous Motor for Fuel Cell Air Compressor

Zhou,

Zhang,

et al. 2024

Actuators

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“…A formulation for the eddy current losses, derived from the Statistical Theory of Losses (STL [15]), is provided in [16], where, to account for the skin effect, the standard expressions for the classical and excess loss components are empirically multiplied by logarithmic functions of frequency. An extension of the Loss-Surface (LS) hysteresis model to high frequencies has also been proposed [17] , where new formulations for the dynamic losses are provided. Other authors have coupled the analytical solution of the Maxwell's diffusion equation with the inverse static Jiles-Atherton (JA) model in order to predict the hysteresis loop at medium frequencies and moderate flux penetration [18].…”

Section: A Phenomenological Skin Effect Modelsmentioning

confidence: 99%

Skin Effect and Losses in Soft Magnetic Sheets: From Low Inductions to Magnetic Saturation

et al. 2023

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High frequencies are ubiquitous in present-day power applications: most electrical equipment, like rotating machines, are supplied by Pulse Width Modulation (PWM) switching inverters, often working at tens or hundreds of kilohertz. PWM is responsible of minor cycles along the major hysteresis loop of the magnetic core, lasting a few microseconds. Such minor loops can cause deep skin effect, even if the thinnest today available laminations (0.1 -0.2 mm thick sheets) are used. Common mode currents in the megahertz range, flowing from the electrical machine windings to the machine chassis through capacitive effects, can engender strong electromagnetic disturbances and bearing damages. A correct prediction of high frequency phenomena is necessary, for example, for the accurate calculation of common mode filters, requiring a magnetic model of the laminated cores suited to high frequencies and low induction values and the ensuing dramatic skin effect. For power conversion applications, such as embedded planar transformers, the mandatory reduction of volume and cross-sectional area of the core, often made of high-permeability grain-oriented (HGO) sheets, imposes the increase of the conversion frequency from a few hundred hertz to several kilohertz and high peak induction values. The skin effect in this case is affected by the non-linear saturable magnetic response of the material and its treatment requires non-trivial experimental methods and modeling approaches. In this work, we discuss physically based modeling of magnetization process and energy loss in magnetic sheets at high frequencies. We focus first on the low induction regimes occurring in thin non-oriented (NO) Fe-Si laminations. We consider then the case of high inductions, as encountered in power conversion devices using NO, HGO, and Fe-Co alloys, where non-linear models, possibly validated by magneto-optical observations of the domain wall dynamics, are developed and implemented.

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“…In engineering applications, these properties are often described using basic magnetization curves, e.g., the anhysteretic curve, the first magnetization curve, the major loop, and the minor loops. For example, the major loop represents the input data of several well-known hysteresis models [1][2][3]. Examples of using the anhysteretic curve as input data are the widespread Jiles-Atherton hysteresis model and its variations [4,5] and various finite element simulation tools.…”

Section: Introductionmentioning

confidence: 99%

“…H eval ⊆ H in ): (a) The input subset H eval,1 = H in = [−H in,max , H in,max ]; (b)The HP subregion (within the input subset), i.e., H eval,2 = [−H 1 , H 1 ]; (c) The SAT region (within the input subset), i.e., H eval,3 …”

mentioning

confidence: 99%

Analysis of Higher-Order Bézier Curves for Approximation of the Static Magnetic Properties of NO Electrical Steels

Rahmanović,

Petrun

2024

Mathematics

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Adequate mathematical description of magnetization curves is indispensable in engineering. The accuracy of the description has a significant impact on the design of electric machines and devices. The aim of this paper was to analyze the capability of Bézier curves systematically, to describe the nonlinear static magnetic properties of non-oriented electrical steels, and to compare this approach versus the established mathematical descriptions. First, analytic functions versus measurements were analyzed. The Bézier curves were then compared systematically with the most adequate analytic functions. Next, the most suitable orders of Bézier curves were determined for the approximation of nonlinear magnetic properties, where the influence of the range of the input measurement dataset on the approximation process was analyzed. Last, the extrapolation capabilities of the Bézier curves and analytic functions were evaluated. The general conclusion is that Bézier curves have adequate flexibility and significant potential for the approximation and extrapolation of nonlinear properties of non-oriented electrical steels.

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New formulation of Loss-Surface Model for accurate iron loss modeling at extreme flux density and flux variation: Experimental analysis and test on a high-speed PMSM

Cited by 9 publications

References 25 publications

Electromagnetic Torque Components Analysis of Ultra-High-Speed Permanent-Magnet Synchronous Motor for Fuel Cell Air Compressor

Electromagnetic Torque Components Analysis of Ultra-High-Speed Permanent-Magnet Synchronous Motor for Fuel Cell Air Compressor

Skin Effect and Losses in Soft Magnetic Sheets: From Low Inductions to Magnetic Saturation

Analysis of Higher-Order Bézier Curves for Approximation of the Static Magnetic Properties of NO Electrical Steels

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