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Journal articles on the topic 'Thermal analysis of PMSM'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Gundabattini, Edison, Arkadiusz Mystkowski, Adam Idzkowski, Raja Singh R., and Darius Gnanaraj Solomon. "Thermal Mapping of a High-Speed Electric Motor Used for Traction Applications and Analysis of Various Cooling Methods—A Review." Energies 14, no. 5 (2021): 1472. http://dx.doi.org/10.3390/en14051472.

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This paper gives a comprehensive review of advanced cooling schemes and their applications to the permanent magnet synchronous motors (PMSMs), as well as investigating the electrical motor’s topologies its thermal design issues, materials and performances. Particularly, the electromagnetic and electric performances, machine sizing, together with the structural design, are given. In addition, the work addresses the motor’s material design and properties along with its insulation performance, which is the main goal of optimization. Mainly, thermal mapping with analysis is provided according to t

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2

Lefik, Marcin. "Design of permanent magnet synchronous motors including thermal aspects." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 34, no. 2 (2015): 561–72. http://dx.doi.org/10.1108/compel-08-2014-0196.

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Purpose – The purpose of this paper is to include thermal analysis in the design process of permanent magnet synchronous motor (PMSM). The additional objective is a comparison of PMSM with induction motor (IM) in terms of thermal phenomena. Design/methodology/approach – Numerical investigation using commercial software MotorSolve was performed. Parameterized models of PMSM and IM were used. Calculations of motor parameters and temperature distribution were made using Finite Element Method. Findings – The results of the calculations show that thermal calculations should be included in the desig

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3

Dimolikas, Konstantinos, Themistoklis D. Kefalas, Petros Karaisas, Zachos K. Papazacharopoulos, and Antonios G. Kladas. "Lumped-Parameter Network Thermal Analysis of Permanent Magnet Synchronous Motor." Materials Science Forum 792 (August 2014): 233–38. http://dx.doi.org/10.4028/www.scientific.net/msf.792.233.

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This paper develops a model based on an original lumped-parameter network configuration for the thermal transient analysis of a permanent magnet synchronous motor (PMSM). The specific PMSM was designed and optimized for a demanding aerospace application. The validity of the proposed lumped-parameter model is verified by measurements carried out in a thermal chamber.

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Liu, Ji Zhu, Xiao Hui Yu, Shao Hua Wang, Tao Chen, and Rui Zheng Long. "Calculation and Analysis on PM Thermal Characteristics Influence Performance of PMSM Based on FEM." Applied Mechanics and Materials 84-85 (August 2011): 676–80. http://dx.doi.org/10.4028/www.scientific.net/amm.84-85.676.

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The irreversible demagnetization of Nd-Fe-B permanent magnet (PM) material appears during the use of Nd-Fe-B permanent magnet synchronous motor (PMSM) has been blocking this kind of motor towards the direction of large-scale. Demagnetization of PM is mainly affected by the working temperature and the reverse magnetic field of stator armature, and the accurate calculation for the demagnetization characteristics of PMSM is usually difficult by using the analytical method. In this paper, we derive the calculation formula of the knee point under a working temperature for permanent magnets in PMSM

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Luu, Phuong Thi, Ji-Young Lee, Ji-Heon Lee, and Jung-Woo Park. "Electromagnetic and Thermal Analysis of a Permanent Magnet Motor Considering the Effect of Articulated Robot Link." Energies 13, no. 12 (2020): 3239. http://dx.doi.org/10.3390/en13123239.

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This paper presents the electromagnetic and thermal characteristics of a permanent magnet synchronous motor (PMSM) in a joint actuator which is used for articulated robot application. In an attempt to design a compact PMSM for the articulated robot, robot link should be taken into consideration during the motor design process as it can reduce the temperature distribution on motor, thus reducing the volume of the motor. A lumped-parameter thermal model of PMSM with and without a link is proposed considering the core loss, copper loss, and mechanical loss as heat sources. The electromagnetic and

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6

Aziz, R., G. J. Atkinson, and S. Salimin. "Thermal Modelling for Permanent Magnet Synchronous Machine (PMSM)." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 4 (2017): 1903. http://dx.doi.org/10.11591/ijpeds.v8.i4.pp1903-1912.

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<span>It is important to predict the temperature in some of the essential parts in machine design to prevent the machine from any damage. Most researchers usually not given much attention on thermal analysis during machine design as much as the electromagnet design. Therefore, in this study, two types of thermal modelling were proposed to predict the temperature of a permanent magnet synchronous machine (PMSM). Infolytica ThermNet software has been used since the software is related to Infolytica Magnet and the losses obtained from the electromagnetic field analysis are used as the heat

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7

Qu, Feng Bo, Wei Li Li, Ting Ting Chen, and Zhi Peng Li. "Analysis of 3D Stator Temperature Field in High Voltage and High Power PMSM." Advanced Materials Research 462 (February 2012): 775–82. http://dx.doi.org/10.4028/www.scientific.net/amr.462.775.

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Taking a 315kW, 6kV permanent magnet synchronous motor (PMSM) with solid rotor as an example, the physical and mathematical models of PMSM three dimensional temperature fields analysis are established according to the heat transfer principles. The basic hypothesis and boundary value problems of the solving region in the motor are also presented. The 3-D temperature field in stator of PMSM was calculated, and the influences of heat transfer coefficients with consideration of the axial wind or not on stator temperature were analyzed. By comparing the test results with the calculated results, the

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Yan, Guishan, Zhenlin Jin, Mingkun Yang, and Bing Yao. "The Thermal Balance Temperature Field of the Electro-Hydraulic Servo Pump Control System." Energies 14, no. 5 (2021): 1364. http://dx.doi.org/10.3390/en14051364.

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The electro-hydraulic servo pump control system (EHSPCS) is a high-performance control unit that integrates a permanent magnet synchronous motor (PMSM) and a closed hydraulic system (CHS). The design features of high integration and a high power-weight ratio lead to the poor heat dissipation capacity and high thermal balance temperature of the system. Excessive temperature will seriously affect the system’s performance and service life. Therefore, the thermal balance analysis method of the EHSPCS under different loads and different wind speeds was proposed in this paper. Firstly, the PMSM and

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9

Ding, Shuye, Guanghui Cui, Zhongyu Li, and Tianyu Guan. "Fluid and thermal performance analysis of PMSM used for driving." Heat and Mass Transfer 52, no. 3 (2015): 571–79. http://dx.doi.org/10.1007/s00231-015-1581-8.

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10

Raj, S., R. Aziz, and M. Z. Ahmad. "Influence of pole number on the characteristics of permanent magnet synchronous motor (PMSM)." Indonesian Journal of Electrical Engineering and Computer Science 13, no. 3 (2019): 1318. http://dx.doi.org/10.11591/ijeecs.v13.i3.pp1318-1323.

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<span>This paper present the influence of pole number on the characteristics of permanent magnet synchronous motor (PMSM). This study is devoted to construct three different motors with varying pole numbers and investigating its effect on the characteristics of permanent magnet synchronous motor (PMSM). It is a study on an influence of pole numbers on electromagnetic and thermal characteristics of the PMSMs all while maintaining the same motor dimensions, parameters and slot number. The study is conducted to analyse the best slot-pole combination for a given dimension to determine if pol

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11

Grunditz, Emma Arfa, Torbjörn Thiringer, Joachim Lindström, Sonja Tidblad Lundmark, and Mikael Alatalo. "Thermal capability of electric vehicle PMSM with different slot areas via thermal network analysis." eTransportation 8 (May 2021): 100107. http://dx.doi.org/10.1016/j.etran.2021.100107.

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12

Jia, Meixia, Jianjun Hu, Feng Xiao, Ying Yang, and Chenghao Deng. "Modeling and Analysis of Electromagnetic Field and Temperature Field of Permanent-Magnet Synchronous Motor for Automobiles." Electronics 10, no. 17 (2021): 2173. http://dx.doi.org/10.3390/electronics10172173.

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In order to study the interaction of electromagnetic fields and temperature fields in a motor, the iron loss curve at different frequencies of silicon steel and the B-H curve at different temperatures of the permanent magnet (PM) were obtained to establish the electromagnetic model of the permanent magnet synchronous motor (PMSM). Then, unidirectional and bidirectional coupling models were established and analyzed based on the multi-physical field. By establishing a bidirectional coupling model, the temperature field distribution and electromagnetic characteristics of the motor were analyzed.

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Di Noia, Luigi Pio, Luigi Piegari, and Renato Rizzo. "Optimization Methodology of PMSM Cooled by External Convection in Aircraft Propulsion." Energies 13, no. 15 (2020): 3975. http://dx.doi.org/10.3390/en13153975.

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Nowadays, the reduction of aircraft emissions is one of the industrial targets with a horizon time until 2050. The recent progresses in electrical drives give the opportunity to modify the aircraft propulsion based on thermal engine or gas turbine to a hybrid/full electric one. Some problems must be solved: weight, reliability, and the choice of the best configuration for the electric propulsion. One of the most important aspects to solve is the thermal behavior of power converters and electric motors. This paper proposes an optimization procedure for the design of surface permanent magnet mot

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14

Tong, Wenming, Shengnan Wu, and Renyuan Tang. "Totally Enclosed Self-Circulation Axial Ventilation System Design and Thermal Analysis of a 1.65-MW Direct-Drive PMSM." IEEE Transactions on Industrial Electronics 65, no. 12 (2018): 9388–98. http://dx.doi.org/10.1109/tie.2018.2823698.

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Bouzidi, Ikhlas, Nicola Bianchi, and Ahmed Masmoudi. "An approach to the sizing of electric motors devoted to aerospace propulsion systems." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 33, no. 5 (2014): 1527–40. http://dx.doi.org/10.1108/compel-12-2013-0426.

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Purpose – The purpose of this paper is to deal with the design and optimization of permanent magnet synchronous motors (PMSM) devoted to aeronautic applications. Design/methodology/approach – A design approach as well as a performance investigation, based on two-dimensional finite element analysis of selected electromagnetic and thermal features, are applied to chosen PM synchronous machine topologies which differ by their number of phases. Findings – It has been found that the initial set of geometrical parameters does not fulfill the torque/weight compromise required by a aeronautic applicat

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16

Tong, Wenming, Ruolan Sun, Chao Zhang, Shengnan Wu, and Renyuan Tang. "Loss and Thermal Analysis of a High-Speed Surface-Mounted PMSM With Amorphous Metal Stator Core and Titanium Alloy Rotor Sleeve." IEEE Transactions on Magnetics 55, no. 6 (2019): 1–4. http://dx.doi.org/10.1109/tmag.2019.2897141.

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17

Duler, Matthieu Pettes, Xavier Roboam, Bruno Sareni, Yvan Lefevre, Jean-François Llibre, and Matthieu Fénot. "Multidisciplinary Design Optimization of the Actuation System of a Hybrid Electric Aircraft Powertrain." Electronics 10, no. 11 (2021): 1297. http://dx.doi.org/10.3390/electronics10111297.

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In the context of hybrid electric and full electric powertrains for future less-pollutant aircrafts, this paper focuses on the multidisciplinary design optimization (MDO) of the actuation system, including a surface-mounted PMSM in order to maximize the power density of the device: this study is a preliminary approach before integrating the whole powertrain. After an introduction of the MDO context, the analytical model of the electric motor is detailed. It integrates multi-physical aspects (electric, magnetic, mechanical, thermal, partial discharges and insulation, control and flight mission)

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18

Chen, Yi, Yihua Yao, Qinfen Lu, Xiaoyan Huang, and Yunyue Ye. "Thermal modeling and analysis of double-sided water-cooled permanent magnet linear synchronous machines." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 35, no. 2 (2016): 695–712. http://dx.doi.org/10.1108/compel-12-2015-0443.

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Purpose – With the popularization of permanent magnet linear synchronous machines (PMLSMs) in recent years, the temperature rise has attracted increasingly attention since excessive heat generated in the windings could deteriorate the electromagnetic performance. In order to solve this problem, adopting water-cooled system is an effective method. The purpose of this paper is to investigate a 12-slot/11-pole (12S/11P) water-cooled double-sided PMLSM, which adopts the all teeth wound concentrated winding and shifted armature ends. Design/methodology/approach – Based on 2D finite element analysis

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19

Zhang, Xin Min, Qin Fen Lu, Chuan Ying Cheng, Jia Meng Shi, Yun Yue Ye, and Xiao Yan Huang. "Thrust Optimization and Thermal Analysis of a Water-Cooled Double-Sided Permanent Magnet Linear Synchronous Motor." Applied Mechanics and Materials 416-417 (September 2013): 241–46. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.241.

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A water-cooled, double-sided permanent magnet linear synchronous motor (PMLSM) is studied by electromagnetic and thermal finite-element (FE) analysis method. Based on electromagnetic analysis, the better structure of this double-sided PMLSM can be obtained after thrust optimization by adjusting motor structure parameters. In order to minimize the thrust ripple, it is further optimized by shifting permanent magnets or armature iron cores of two sides for a small distance. With thermal analysis, the temperature distribution and transient temperature variation of this optimal PMLSM are investigat

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20

Jiang, Jun Hai, Guo Yun Ye, and Yue Tong Xu. "Thermal Structure Analysis and Optimization of the Feeding System of the Permanent Magnet Linear Synchronous Motor." Applied Mechanics and Materials 492 (January 2014): 128–34. http://dx.doi.org/10.4028/www.scientific.net/amm.492.128.

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Because of its high dynamic response speed and acceleration, high rigidity and positioning accuracy, the permanent magnet linear synchronous motor (PMLSM) is able to meet the requirements of high-speed precision CNC machine tools. However, its thermal problems have seriously hampered its development. This paper establishes a PMLSM temperature field model, designs a cooling structure, determines the boundary conditions of the finite element model and conducts computer simulation of the model. The result shows that the designed cooling structure can effectively alleviate the motors thermal probl

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21

Wang, Xuezhen, Feixue Chen, RenFeng Zhu, et al. "A Review on Disturbance Analysis and Suppression for Permanent Magnet Linear Synchronous Motor." Actuators 10, no. 4 (2021): 77. http://dx.doi.org/10.3390/act10040077.

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In high-end testing and manufacturing equipment, a trend exists whereby the traditional servo feed system with a ball screw and rotary motor will gradually be replaced by a direct drive system. The precision motion system driven by a permanent magnet linear synchronous motor (PMLSM) offers several advantages, including high speed, high acceleration, and high positioning accuracy. However, the operating precision of the feed device will be affected by the PMLSM robustness to nonlinear and uncertain disturbances, such as cogging force, friction, thermal effects, residual vibration, and load dist

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Raja Ram Kumar et al.,, Raja Ram Kumar et al ,. "Thermal Analysis of Five-Phase PMSG for Small-Scale Wind Power Application." International Journal of Mechanical and Production Engineering Research and Development 8, no. 6 (2018): 667–80. http://dx.doi.org/10.24247/ijmperddec201869.

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23

Rodríguez-Martín, Rodríguez-Gonzálvez, Ruiz de Oña Crespo, and González-Aguilera. "Validation of Portable Mobile Mapping System for Inspection Tasks in Thermal and Fluid–Mechanical Facilities." Remote Sensing 11, no. 19 (2019): 2205. http://dx.doi.org/10.3390/rs11192205.

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The three-dimensional registration of industrial facilities has a great importance for maintenance, inspection, and safety tasks and it is a starting point for new improvements and expansions in the industrial facilities context. In this paper, a comparison between the results obtained using a novel portable mobile mapping system (PMMS) and a static terrestrial laser scanner (TLS), widely used for 3D reconstruction in civil and industrial scenarios, is carried out. This comparison is performed in the context of industrial inspection tasks, specifically in the thermal and fluid-mechanics facili

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24

Meng, Guodong, Yimeng Li, Zhengdong Wang, Cheng Pan, Wenwu Gao, and Yonghong Cheng. "Preparation and Characterization of Narrow Size Distribution PMSQ Microspheres for High-Frequency Electronic Packaging." Materials 14, no. 15 (2021): 4233. http://dx.doi.org/10.3390/ma14154233.

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Polymethylsilsesquioxane (PMSQ) has become a kind of widely studied filler used in the electronic circuit board substrates due to its organic–inorganic hybrid structure, low dielectric constant, and good thermal stability, among other factors. Herein, the PMSQ microspheres were prepared by a two-step acid–base-catalyzed sol–gel method; the influences of reaction conditions including the ratio of water/methyltrimethoxysilane (MTMS), reaction temperature, concentration of the catalyst, and stirring time were systematically investigated; and the optimized reaction condition was then obtained towa

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25

Wang, Bo, Gaurang Vakil, Ye Liu, Tao Yang, Zhuoran Zhang, and Chris Gerada. "Optimization and Analysis of a High Power Density and Fault Tolerant Starter–Generator for Aircraft Application." Energies 14, no. 1 (2020): 113. http://dx.doi.org/10.3390/en14010113.

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Permanent magnet synchronous machines provide many dramatic electromagnetic performances such as high efficiency and high power density, which make them more competitive in aircraft electrification, whereas, designing a permanent magnet starter–generator (PMSG), with given consideration to fault tolerance (FT), is a significant challenge and requires great effort. In this paper, a comprehensive FT PMSG design process is proposed which is applied to power systems of turboprops. Firstly, potential slot/pole combinations were selected based on winding factor, harmonic losses and manufacture issue

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26

Afroze, Shammya, Duygu Yilmaz, Md Sumon Reza та ін. "Investigation of Structural and Thermal Evolution in Novel Layered Perovskite NdSrMn2O5+δ via Neutron Powder Diffraction and Thermogravimetric Analysis". International Journal of Chemical Engineering 2020 (27 листопада 2020): 1–7. http://dx.doi.org/10.1155/2020/6642187.

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Neutron diffraction is one of the best methods for structural analysis of a complex, layered perovskite material with low symmetry by accurately detecting the oxygen positions through octahedral tilting. In this research, the crystal structure of NdSrMn2O5+δ was identified through X-ray diffraction (XRD) and neutron powder diffraction (NPD) at room temperature (RT), which indicated the formation of a layered structure in orthorhombic symmetry in the Pmmm (no. 47) space group. Rietveld refinement of the neutron diffraction data has confirmed the orthorhombic symmetry with unit cell parameters (

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27

Lu, Qinfen, Liren Huang, Yunyue Ye, Xiaoyan Huang, and Youtong Fang. "Design of a novel permanent magnet linear synchronous motor with segmented armature core for ropeless lifter." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 35, no. 2 (2016): 556–71. http://dx.doi.org/10.1108/compel-01-2015-0015.

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Purpose – Due to the merits of direct driven, high thrust density and high efficiency, PM linear synchronous motor (PMLSM) is pretty suitable for the long-stroke ropeless lifter. However, the vibration caused by detent force and difficulty of maintenance become the barriers that restrict its application. The paper aims to discuss these issues. Design/methodology/approach – In order to simplify structure and improve driving performance, a novel PMLSM with segmented armature core and end non-overlapping windings is proposed. The analytical formula of detent force is derived based on energy metho

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28

Fernandez, Daniel, Maria Martinez, David Reigosa, Alberto B. Diez, Juan Manuel Guerrero, and Fernando Briz. "Comparative Analysis of Magnet Thermal and Magnetization State Monitoring in PMSMs Based on High-Frequency Signal Injection." IEEE Transactions on Industry Applications 56, no. 1 (2020): 344–57. http://dx.doi.org/10.1109/tia.2019.2952027.

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29

Lautenbacher, S., A. Möltner, W. P. Lehmann, G. Galfe, R. Hölzl, and F. Strian. "SDT Analysis of Experimental Thermal Pain, with “Signal” and “No-Signal” Being Determined Psychophysically." Perceptual and Motor Skills 68, no. 3_suppl (1989): 1019–30. http://dx.doi.org/10.2466/pms.1989.68.3c.1019.

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In a signal-detection experiment, the effects of repeated pain stimulation and the induction of fear on pain thresholds and SDT parameters were studied. “Signal” and “no-signal” were not defined physically, but by means of an independent criterion as the primary sensations “pain” and “no-pain.” First, the relationship between sensation levels for “phasic” (short stimulus, used in the SDT procedure) and “tonic” (longer stimulus, used in the criterion measurement) heat stimuli was determined in 14 subjects. It was quadratic (polynomial regression) and sufficient to define the distinction between

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30

Tihtih, Mohammed, Jamal Eldin F. M. Ibrahim, Emese Kurovics, and László A. Gömze. "Study of the Structure, Microstructure and Temperature Dependent Thermal Conductivity Properties of SrTiO3: Via Y3+ Substitution." Journal of Nano Research 69 (August 30, 2021): 33–42. http://dx.doi.org/10.4028/www.scientific.net/jnanor.69.33.

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Yttrium (Y) modified strontium titanate (SrTiO3) powders with initial concentration of Y in the range of 0 to 15 mol% were produced through sol-gel technique. X-ray diffraction (XRD) studies show that all the prepared compounds have a perovskite cubic structure with the space group (Pm3m). The lattice constant, lattice strain and crystallite size of the as-prepared samples were estimated from the XRD pattern which reveals the incorporation of Y into SrTiO3 system, moreover to investigate the quality of the prepared SrYT ceramics powder, the scanning electron microscopy (SEM) was used to determ

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31

King, William D., Krzysztof C. Kwiatkowski, and Charles M. Lukehart. "Synthesis and Solid-State Structure of a Pt-Ru-P Ternary Metal Phosphide (PtRuP2) as a Carbon Nanocomposite." Journal of Nanoscience and Nanotechnology 8, no. 6 (2008): 3146–52. http://dx.doi.org/10.1166/jnn.2008.099.

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Reactive thermal degradation of Pt(PPh3)(Cl)(μ2-Cl)2 Ru(Cl)(η3:η3-C10H16)/Vulcan carbon powder composites gives a nanocomposite powder containing nanocrystals of the expected PtRu alloy phase along with nanocrystals of an unknown substance. Yields of the unknown phase increase when PPh3 is added to the composite prior to thermal treatment. The new substance has been identified as a ternary metal phosphide, PtRuP2. Full-profile Rietveld analysis of the XRD pattern of this phase is consistent with a primitive Pm3m cubic unit cell (CsCl-type) having a cell constant of 2.78 Å. Fully disordered Pt

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Abdalla, Abdalla Mohammed, Shahzad Hossain, Jun Zhou, Pg Mohammad Iskandar Petra, and Abul Kalam Azad. "Synthesis, Structural and Thermal Properties of Layered Perovskites SmBaMn₂O_5+d for SOFCs Applications." Materials Science Forum 889 (March 2017): 195–200. http://dx.doi.org/10.4028/www.scientific.net/msf.889.195.

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New layered perovskite oxides with samarium (Sm+3) rare earth doped layered perovskite materials were synthesized and characterised by using X-ray diffraction, scanning electron microscopy (SEM), particle size measurements and thermogravimetric analysis (TGA). Sm0.5Ba0.5MnO3-δ and SmBMn2O5+δ, were synthesized by conventional solid state reaction method. Rietveld analysis of XRD data shows that all materials crystallize in the orthorhombic symmetry in the Pmmm space group. SEM images show porous structures which should be suitable as electrode materials for solid oxide fuel cells (SOFCs). TGA r

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Duggan, Gillian, Oksana Peredery, and M. A. Persinger. "Effects of Daily or Weekly Thermal (Footpad) Stress upon Manifestation of Melanoma Tumours." Perceptual and Motor Skills 95, no. 3 (2002): 953–54. http://dx.doi.org/10.2466/pms.2002.95.3.953.

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A total of 48 C57 mile and female mice received thermal stimulation to their footpads either daily, weekly, or never. After either two or three weeks of this treatment the mice were injected to discern if the initiation of carcinogenic cell proliferation during a stressful period would influence the rate of development of the tumour. The latency in days for the onset of a discernable node over the injection site was measured. A statistically significant interaction between the temporal pattern of treatments and sex explained about 25% of the variance in the latency of the appearance of tumours

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Gallego, V., M. C. Vílchez, D. S. Peñaranda, et al. "Subpopulation pattern of eel spermatozoa is affected by post-activation time, hormonal treatment and the thermal regimen." Reproduction, Fertility and Development 27, no. 3 (2015): 529. http://dx.doi.org/10.1071/rd13198.

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There has been a marked reduction in natural stocks of eels (genus Anguilla) over the past 60 years, and the culture of eels is still based on the capture of very large quantities of juveniles. It is necessary to close the life cycle in captivity in order to ease the pressure on wild populations. The aims of the present study were to evaluate sperm subpopulations (through cluster analysis of computer-aided sperm analysis data) in the European eel (Anguilla anguilla) and to assess the effects of motility acquisition time after activation (i.e. at 30, 60 and 90 s), the thermal regimen (i.e. 10°C

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Ye, Shuaichen, Dao Zhou, Xiaoxian Yao, and Frede Blaabjerg. "Component-Level Reliability Assessment of a Direct-Drive PMSG Wind Power Converter Considering Two Terms of Thermal Cycles and the Parameter Sensitivity Analysis." IEEE Transactions on Power Electronics 36, no. 9 (2021): 10037–50. http://dx.doi.org/10.1109/tpel.2021.3064363.

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Xue, Wei, and Yan Ling Guo. "Chaos Analysis and Control of Permanent Magnet Synchronous Motors." Advanced Materials Research 219-220 (March 2011): 88–92. http://dx.doi.org/10.4028/www.scientific.net/amr.219-220.88.

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As a nonlinear dynamic system, the permanent magnet synchronous motor (PMSM) can exhibit prominent chaotic characteristics under some choices of system parameters. The existence of chaotic attractor of the PMSM is verified through the centre manifold theory and Poincaré section. Chaotic phenomenon affects the normal operation of motor. In this paper, it makes the PMSM in a stable state to control chaos of the PMSM with a control strategy of delay feedback, which can eliminate chaos well.

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Zhao, Gang, and Nan Zhang. "Simulation and Analysis of PMSM Based on Space Vector Control Strategy." Advanced Materials Research 756-759 (September 2013): 472–76. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.472.

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Permanent magnet synchronous motor (PMSM) vector control strategy is studied deeply in the paper based on the analysis of the operation principle of permanent magnet synchronous motor (PMSM). Permanent magnet synchronous motor (PMSM) speed-current double closed loop control system was built by Matlab/Simulink. The simulation results showed that the system had fast response speed, high accuracy and strong anti-interference ability and so on. It also proved that Permanent magnet synchronous motor (PMSM) vector control system had good dynamic and static performances.

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Kruaehong, Thitipong. "Preparation and Characterization of the New Y257 Superconductors." Advanced Materials Research 770 (September 2013): 22–25. http://dx.doi.org/10.4028/www.scientific.net/amr.770.22.

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The new Y257 superconductor in YBaCuO family was synthesized by standard solid state reaction. The Y257 samples were measured the critical temperature (Tc) by the four-probes method that found at 90 K. The XRD technique and FULLPROF program were used to determine the lattice parameters, space group and phase compositions. It was found that the Y257 exhibited in both of superconducting and non-superconducting phase. The Pmmm space group was fit well on superconducting phase with the lattice parameters as a=3.8108 Å, b=3.8544 Å and c=26.4967 Å. The non-superconducting phase exhibited in two s

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Qing, Xu, Ma Xiaoqian, Yu Zhaosheng, Cai Zilin, and Ling Changming. "Decomposition Characteristics and Kinetics of Microalgae in N2 and CO2 Atmospheres by a Thermogravimetry." Journal of Combustion 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/6160234.

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The thermal degradation characteristics of microalgae were investigated in highly purified N2 and CO2 atmospheres by a thermogravimetric analysis (TGA) under different heating rates (10, 20, and 40°C/min). The results indicated that the total residual mass in CO2 atmosphere (16.86%) was less than in N2 atmosphere (23.12%); in addition, the kinetics of microalgae in N2 and CO2 atmospheres could be described by the pseudo bicomponent separated state model (PBSM) and pseudo-multi-component overall model (PMOM), respectively. The kinetic parameters calculated by Coats-Redfern method showed that, i

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Lim, Jae-Hyeon, Geochul Jeong, Hyung-Woo Lee, Jae-Bum Lee, Jong-Seok Lim, and Chan-Bae Park. "Design and Analysis of the 45kW-Class Magnetic Geared Permanent Magnet Synchronous Motor for Traction of Tram Vehicles." Applied Sciences 11, no. 14 (2021): 6360. http://dx.doi.org/10.3390/app11146360.

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The magnetic geared permanent magnet synchronous motor (MG-PMSM) is a PMSM that has two rotors with different rotation speeds and includes the function of magnetic gear. The design studies of the 45kW-class MG-PMSM are conducted for the application of the driving system for a tram. In this research, first, to derive the detailed model of the 45kW-class MG-PMSM for the tram, the analysis of the characteristics according to the stator winding method was performed. After selecting the winding method that can reduce the size of the MG-PMSM, two design topologies were applied to determine the numbe

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Ran, Jie, Yuqin Li, and Changchun Wang. "Chaos and Complexity Analysis of a Discrete Permanent-Magnet Synchronous Motor System." Complexity 2018 (December 2, 2018): 1–8. http://dx.doi.org/10.1155/2018/7961214.

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In this paper, a spectral entropy algorithm has been used successfully for complexity measure of a discrete permanent-magnet synchronous motor (PMSM) system. Firstly, the discrete PMSM system is achieved using the forward Euler scheme. Secondly, by adopting the bifurcation diagram, phase portraits, 0-1 test, and largest Lyapunov exponent, the chaotic dynamics of the discrete PMSM system are analyzed. The complexity of the discrete PMSM system is discussed by employing the spectral entropy algorithm. It shows that the spectral entropy complexity analysis is an efficient tool to study chaotic dy

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Sakharov, M. V., and V. N. Karaulov. "Method of winch drive permanent magnet inverted motor design." Vestnik IGEU, no. 2 (2019): 51–58. http://dx.doi.org/10.17588/2072-2672.2019.2.051-058.

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Designing a permanent magnet synchronous motor (PMSM) of a winch drive needs to take into account the features of this machine. The engine has an inverted design with limited dimensions, is powered by a fre-quency converter, runs at the nominal power frequency and nominal load without using the damping winding and frequency start, and provides the required range of rope winding speeds. There is no specialized engi-neering design methodology for the winch drive PMSM. It is required to make changes and additions to the existing methods of designing synchronous machines when solving the problem o

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Wang, Chun Jie, Le Ge, and Yong Xin Tian. "Analysis and Simulation of Control System for PMSM in Electric Vehicles." Applied Mechanics and Materials 687-691 (November 2014): 500–503. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.500.

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This paper introduces the vector control of permanent magnet synchronous motor (PMSM), and proposes the control strategy according to the characteristics of the electric vehicles. The dynamics equation is obtained based on the analysis of the power system of electric vehicles, and the control scheme for PMSM is proposed. In the environment of MATLAB/SIMULINK software, the model of PMSM vector control and the electric vehicles drive system are established and analyzed.

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Cavello, Ivana A., Roque A. Hours, and Sebastián F. Cavalitto. "Bioprocessing of “Hair Waste” by Paecilomyces lilacinus as a Source of a Bleach-Stable, Alkaline, and Thermostable Keratinase with Potential Application as a Laundry Detergent Additive: Characterization and Wash Performance Analysis." Biotechnology Research International 2012 (December 17, 2012): 1–12. http://dx.doi.org/10.1155/2012/369308.

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Paecilomyces lilacinus (Thom) Samson LPS 876, a locally isolated fungal strain, was grown on minimal mineral medium containing “hair waste,” a residue from the hair-saving unhairing process, and produced a protease with keratinolytic activity. This enzyme was biochemically characterized. The optimum reaction conditions, determined with a response surface methodology, were 60°C and pH 6.0. It was remarkably stable in a wide range of pHs and temperatures. Addition of Ca2+, Mg2+, or sorbitol was found to be effective in increasing thermal stability of the protease. PMSF and Hg2+ inhibited the pro

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Azad, Abul Kalam, D. D. Y. Setsoafia, L. C. Ming та Iskandar Petra. "Synthesis and Characterization of High Density and Low Temperature Sintered Proton Conductor BaCe_0.5Zr_0.35In_0.1Zn_0.05O_3-δ". Advanced Materials Research 1098 (квітень 2015): 104–9. http://dx.doi.org/10.4028/www.scientific.net/amr.1098.104.

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Rare-earth-doped BaCeO3and BaZrO3electrolytes with perovskite structure have been studied extensively in developing proton conducting intermediate temperature SOFC. Acceptor doped alkaline earth cerates and zirconates have been thoroughly studied because of the great interest in their possible applications as solid proton conductors. The perovskite type proton conductor BaCe0.5Zr0.35In0.1Zn0.05O3-δwas prepared in the traditional solid state reaction method. The density of the sample obtained about 96% of the theoretical density after sintering at 1350 °C and X-ray diffraction study confirms th

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Hang, Jun, Jianzhong Zhang, Shichuan Ding, and Ming Cheng. "Modelling and analysis of PPF in PMSM." IET Electric Power Applications 11, no. 3 (2017): 434–40. http://dx.doi.org/10.1049/iet-epa.2016.0624.

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Rao, Zhimeng, Wenjuan Zhang, Gongping Wu, Jian Zheng, and Shoudao Huang. "Characteristic Analysis and Predictive Torque Control of the Modular Three-Phase PMSM for Low-Voltage High Power Application." Energies 13, no. 21 (2020): 5606. http://dx.doi.org/10.3390/en13215606.

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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 char

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Yadav, Deepti, and Arunima Verma. "Comperative Performance Analysis of PMSM Drive Using MPSO and ACO Techniques." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 4 (2018): 1510. http://dx.doi.org/10.11591/ijpeds.v9.i4.pp1510-1522.

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<p>This work proposes an optimization algorithm to control speed of a permanent magnet synchronous motor (PMSM) during starting and speed reversal of motor, as well as during load disturbance conditions. The objective is to minimize the integral absolute control error of the PMSM shaft speed to achieve fast and accurate speed response under load disturbance and speed reversal conditions. The maximum overshoot, peak time, settling time and rise time of the motor is also minimized to obtain efficient transient speed response. Optimum speed control of PMSM is obtained with the aid of a PID

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Yadav, Deepti, and Dr Arunima Verma. "Performance Analysis of Permanent Magnet Synchronous Motor Drive using Particle Swarm Optimization Technique." Journal of Energy Technology Research 1, no. 2 (2017): 19. http://dx.doi.org/10.22496/jetr.v1i2.90.

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Permanent magnet synchronous motor (PMSM), a nonlinear speed controller design based on Particle Swarm Optimization (PSO) technique is presented in this paper. For tuning the PID controller, the speed control for PMSM was analyzed using PSO algorithm to optimize the parameters in terms of proportional gain (Kp), integral gain (Ki), and derivative gain (Kd). Moreover, the overall system is evaluated under various operating conditions such as starting, braking, load application and load removal. Besides this, comparison between speed control of PMSM using Ziegler-Nichols (Z-N) method and speed c

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Hatayama, Toshiteru, and Kayoko Shimizu. "An Examination by Forearm EMG on Pain Reaction Time to Radiant Heat." Perceptual and Motor Skills 76, no. 3_suppl (1993): 1139–46. http://dx.doi.org/10.2466/pms.1993.76.3c.1139.

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The present study was done to estimate rise in skin temperature during a pain reaction time (pain RT) as a means of investigating why a pricking pain threshold, produced by thermal stimulation using time method, often increases during repeated measurements. The pain RT, or the time-delay between occurrence of pain sensation and a subsequent motor response, was measured by making EMG recording on a forearm. The radiant heat stimuli were three, 200, 300, and 350 mcal/sec./cm2, each of which was given through a round radiation window of an algesiometer head. Analysis showed that the pain RTs woul

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