design of permanent magnet synchronous machines

... DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF ELECTRICAL ENGINEERING NATIONAL UNIVERSITY OF SINGAPORE 2005 Trang 2This thesis presents aspects of analysis, design and control of permanent magnetsynchronous ... the validity of the design optimizationmethodology and control algorithm developed 1 Trang 301.1 Permanent Magnet MotorsThe use of permanent magnets (PM) in construction of electrical machines bringsthe ... motors 4 1.2 Characteristics of Permanent Magnet Materials 6 1.3 Structures for exterior permanent magnet motors 8 1.4 Structures for interior permanent magnet motors 8 1.5 Ideal

Ngày tải lên: 15/09/2015, 22:06

... 1.1.1 The development of Permanent Magnet Machines 1 1.1.2 Features of permanent magnet motors 3 1.2 Permanent magnet synchronous motors 7 iii Trang 51.2.2 Inherent design issues for ... 141.1 Magnetic characteristics of the main class of permanent magnets [2] 21.2 Evolution of the magnetic material during the 20th century [2] 3 1.3 Partial demagnetization of a permanent magnet ... main class of permanent magnets [2] Finally, the development of rare earth permanent magnets in the 60’s gave a significant advantage to permanent magnet excitation The early rare earthmagnets were

Ngày tải lên: 04/10/2015, 15:45

... OF PERMANENT MAGNET SYNCHRONOUS MOTOR BASED ON MECHANICAL AND MAGNETIC CHARACTERISTIC ANALYSES YU YINQUAN NATIONAL UNIVERSITY OF SINGAPORE 2013 Trang 2FAULT DIAGNOSIS OF PERMANENT MAGNET SYNCHRONOUS ... components of DUMP in offset direction with different grades of DE faults calculated with FEM …77 Table 5.6: FT main components of DUMP in the orthogonal of offset direction with different grades of ... main components of IUMP in the offset direction with 0.3mm eccentricity of IE faults calculated with FEM …85 Table 5.10: FT main components of IUMP in the orthogonal of the offset direction

Ngày tải lên: 16/09/2015, 12:06

... Current Control Strategy of Permanent Magnet Synchronous Motors Yan Dong,1Kai Jing,1Hexu Sun,1,2and Yi Zheng1 1 School of Control Science and Engineering of Hebei University of Technology, Tianjin ... of the type of M205B produced by KOLLMONGEN in US with rated power of 1.6 kW, rated voltage of 230 V, continuous rated current of 5.3 A, continuous torque of 4.47 Nm, and maximum revolution of ... Figure 2: Simplified stator model of synchronic motor the distances of 2𝜏 about a pair of magnetic poles equivalent to 360∘of electrical angle Every stator of 3-phase AC motor can be analyzed

Ngày tải lên: 02/11/2022, 09:24

... STRATEGIES OF PERMANENT MAGNET SYNCHRONOUS MOTOR DRIVE FOR ELECTRIC VEHICLES Chiranjit Sain, Atanu Banerjee and Pabitra Kumar Biswas Trang 2Control Strategies of Permanent Magnet Synchronous ... Strategies of Permanent Magnet Synchronous Motor Drive for Electric Vehicles Chiranjit Sain, Atanu Banerjee and Pabitra Kumar Biswas Trang 4Control Strategies of Permanent Magnet Synchronous ... analysis of the torque-speed curve 47 Figure 3.1 Schematic representation of the proposed permanent magnet synchronous motor ( PMSM) drive .50 Trang 14List of Figures Figure 3.2 Representation of

Ngày tải lên: 18/03/2023, 09:23

... PMSM performance LITERATURE REVIEWPermanent Magnet Synchronous MotorPermanent Magnet Synchronous Motor, or PMSM is a type of AC electric motor which comes from the synchronous motor family [Tab 2.1] ... the vector control of a Permanent Magnet Synchronous Motor (PMSM) using a Proportional – Integral (PI) regulator, which exhibits satisfactory tracking performance in terms of speed, stability, ... issues “Synthesizing the speed controller of permanent magnet synchronous electrical motor with the blower load using adaptive sliding control” [3] The goal of this research is to strengthen the

Ngày tải lên: 26/09/2024, 10:38

... 4Acknowledgement i1.1 Permanent Magnet Machines 11.2 Permanent Magnet Materials 31.3 Line-Start Permanent Magnet Synchronous Machines 71.4 Computational Analysis of Permanent Magnet Machines ... Physical Model of Interior Permanent Magnet Synchronous Machine 118 4.3 The Phasor Diagram of a Permanent Magnet Synchronous Machine 122 4.4 Cross Section of Line-Start Permanent Magnet Synchronous ... densities of permanent magnets preventedthe use of permanent magnets in any types of machines other than very low powercontrol machines and signal transducers [3] Modern permanent magnet machinesbegan

Ngày tải lên: 15/09/2015, 22:17

... Appendix A Proof of Lemma 1 342 Appendix B Proof of the exponential stability of the flux tracking error 343 Appendix C Proof of Lemma 2 344 References 345 1 Introduction The permanent-magnet synchronous ... 7 May 2009 Keywords: Permanent-magnet synchronous motor Passivity-based approach Rotational speed control Current control a b s t r a c t The control of a permanent-magnet synchronous motor is ... controller design for a permanent-magnet synchronous motor A.Y Achoura,∗, B Mendilb, S Bachac, I Munteanuc aDepartment of Electrical Engineering, A Mira University, 06000, Bejaia, Algeria bDepartment of

Ngày tải lên: 24/11/2016, 10:43

... Trang 1CONTROL OF A PERMANENT-MAGNET SYNCHRONOUS GENERATOR WIND TURBINE SYSTEM DURING GRID FAULT Van Tan Luong*, Dang Ngoc Khoa Ho Chi Minh City University of Food Industry *Email: ... ride-through capability enhancement of grid-connected permanent-magnet synchronous generator driven directly by variable speed wind turbine: a review, The Journal of Engineering 2017 (13) (2017) ... (WT) systems, a direct-drive wind energy conversion system based on permanent-magnet synchronous generator (PMSG) has a lot of advantages such as no gearbox, high precision, high power density,

Ngày tải lên: 16/05/2020, 00:10

... Trang 1CONTROL OF A PERMANENT-MAGNET SYNCHRONOUS GENERATOR WIND TURBINE SYSTEM DURING GRID FAULT Van Tan Luong*, Dang Ngoc Khoa Ho Chi Minh City University of Food Industry *Email: ... ride-through capability enhancement of grid-connected permanent-magnet synchronous generator driven directly by variable speed wind turbine: a review, The Journal of Engineering 2017 (13) (2017) ... (WT) systems, a direct-drive wind energy conversion system based on permanent-magnet synchronous generator (PMSG) has a lot of advantages such as no gearbox, high precision, high power density,

Ngày tải lên: 09/01/2021, 15:59

... number of phases is that the inversion of the Clarke matrix is equal to its transpose: The electromagnetic torque of the machine is equal to the sum of torques generated by all fictitious machines ... facilitate the control of an energetic system In addition, the number of DoF are pointed out for the control This point is particularly important for multiphase machines whose number of DoF is high in ... fictitious machines; Ω is the rotating speed of the machine 32 where the electromagnetic torque of the machine Tem is equal to the sum of torques of the fictitious machines (T1, T2, T3, Tz)  (2.7) where

Ngày tải lên: 23/03/2024, 10:33

... two-pole, permanent-magnet ac machine, which is also called a permanent-magnet synchronous machine, is depicted in Figure 4.2-1 It has three-phase, wye-connected stator windings and a permanent-magnet ... Wasynczuk, Scott Sudhoff, and Steven Pekarek. © 2013 Institute of Electrical and Electronics Engineers, Inc Published 2013 by John Wiley & Sons, Inc. PERMANENT-MAGNET AC MACHINES 4 Trang ... operating features of all of the above mentioned modes of operation without becoming involved with the actual switching or control of the inverter Therefore, in this chapter, Analysis of Electric Machinery

Ngày tải lên: 16/02/2014, 18:46

... d CAUTION: During field weakening of a Surface Permanent Magnet (SPM) type of PMSM, mechanical damage of the rotor and the demagnetization of the permanent magnets is possible if careful measures ... Hysteresis Graph ΨPM d Intrinsic characteristic of permanent magnet Normal characteristic of permanent magnet Where: H = Field intensity B = Field induction BR = Permanent induction value HC = Coercivity ... method of flux angle and speed estimation for Permanent Magnet Synchronous Motors (PMSM) This method is applied with success in the Field Weakening mode of PMSM, which greatly increases the types of

Ngày tải lên: 11/01/2016, 17:05

... WECS concepts Among different types of generators, the permanent-magnet synchronous gen-erators (PMSGs) have been found to be superior owing to their advantages of higher efficiency, higher power ... linkage generated by the permanent magnets, R s is the resistance of the stator windings, andω e is the electrical angular velocity of the rotor The q- and d-axis flux linkages of the PMSG, ψ q andψ ... Member, IEEE Abstract— Owing to the advantages of higher efficiency, greater reliability, and better grid compatibility, the direct-drive permanent-magnet synchronous generator (PMSG)-based variable-speed

Ngày tải lên: 27/09/2016, 20:23

... SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING NATIONAL UNIVERSITY OF SINGAPORE Trang 2Abstract Initiated by the advent of high performance processors ... starting time over the conventional method of gate turn-off PMSMs have permanent magnet rotors generating sinusoidal back-EMFs in rotation From the perspective of torque performance, a PMSM should ... Figure 5.1 Motor positional inductance profile without saturation 88 Figure 5.2 Magnetic field produced by permanent magnet on rotor 89 Figure 5.3 Influence of armature winding current to stator

Ngày tải lên: 11/09/2015, 09:07

... engineering education and of the text Machine Design: An Integrated Approach. He is a Fellow of the Ameri- can Society of Mechanical Engineers and a member of the Society of Automotive Engi- neers. ... Principles of Mechanism in 1841 while a professor of natural philosophy at the University of Cambridge, England. He attempted to systematize the task of mechanism synthesis. He counted five ways of obtaining ... the quality of the design. Commercially available programs such as Working Model* also allow rapid analysis of a proposed mechanical design. The process then becomes one of qualitative design by...

Ngày tải lên: 08/04/2014, 11:35

... Rotating Machines 200 3.7.1 History and Characteristics of Permanent Magnets 200 3.7.2 Operating Point of a Permanent Magnet Circuit 205 3.7.3 Application of Permanent Magnets in Electrical Machines ... Shift of Damper Bar Slotting from the Symmetry Axis of the Pole 392 7.2.8 V Curve of a Synchronous Machine 394 7.2.9 Excitation Methods of a Synchronous Machine 394 7.2.10 Permanent Magnet Synchronous ... Core Length 171 3.3 Magnetic Voltage of a Tooth and a Salient Pole 173 3.3.1 Magnetic Voltage of a Tooth 173 3.3.2 Magnetic Voltage of a Salient Pole 177 3.4 Magnetic Voltage of Stator and Rotor...

Ngày tải lên: 07/03/2014, 10:20

... hyperplane. 4. SUPPORT VECTOR MACHINES FOR DICHOTOMOUS WOS FILTERS 4.1. Linear support vector machines for dichotomous WOS filters In the above section, the new approach of designing WOS filter has reduced ... applications. In this paper, SVMs are introduced into the design of WOS filters in ordertoimproveperformance. WOS filters are special subset of stack filters. Each stack filter is based on a positive ... marginally im- proved by using the conventional design approach of stack filter or neural network. Although the adaptive neural fil- ter can effectively remove noise of various kinds, including Gaussian noise...

Ngày tải lên: 22/06/2014, 23:20

... covers the analysis and design of rotational brushless per- manent -magnet (PM) motors. Brushless dc, PM synchronous, and PM step motors are all brushless permanent- magnet motors. These specific ... The optimum number of magnet poles is a complex function of motor geometry and material properties. Thus in many designs, economics dictates that a small number of magnet poles be used. ... that op- posite magnet poles attract, that like magnet poles repel each other, and that current flowing in a coil of wire makes an electromagnet. Consider the bar permanent magnet centered...

Ngày tải lên: 02/07/2014, 08:20

... gaps, and slotted magnetic structures were developed. The properties of ferromagnetic and per- manent -magnet materials were discussed. A magnetic circuit model of a permanent magnet was introduced ... drop off more quickly as -H c is ap- proached. Operation in the area of the knee can cause the magnet to lose some magnetization irreversibly because the magnet will recoil along a line of ... proportional to the size of the hysteresis loop of a given material, and therefore by inspection of Fig. Figure 2.15 Typical core loss characteristics of ferromagnetic material. Magnetic Modeling...

Ngày tải lên: 02/07/2014, 08:20