dynamic modeling of induction motors
Kwang hee nam AC motor control and electrical vehicle applications
Ngày tải lên :
24/07/2015, 13:53
... classical theories regarding induction motors are reviewed From Chapter to Chapter 6, dynamic modeling, field-oriented control, and some advanced control techniques for induction motors are illustrated ... Types of PMSMs 6.2 PMSM Dynamic Modeling 6.2.1 SPMSM Voltage Equations 6.2.2 IPMSM Dynamic Model 6.2.3 Multi-Pole PMSM Dynamics ... Frequency (VVVF) Control Dynamic Modeling of Induction Motors 4.1 Voltage Equation 4.1.1 Flux Linkage ...
- 450
- 662
- 5
Design Issues for Enterprise Deployment of Application Servers
Ngày tải lên :
24/10/2013, 07:20
... Two common types of non-repudiation evidence are the evidence of proof of creation of a message and evidence of proof of receipt Non-repudiation often involves the participation of a trusted third ... Although modeling tools are getting better and offer a wide variety of capabilities, it is often difficult or impossible for modeling tools to take into account the vast richness and diversity of individual ... carried the traffic of hundreds or thousands of users Today's Internet-connected user considers a dedicated, dial-up 28.8-Kbps line a pauper's connection Of course, the profiles of a typical user...
- 23
- 484
- 0
design issues for MEMS 1
Ngày tải lên :
23/04/2014, 10:18
... LINH KIỆN VÀ XÂY DỰNG QUY TRÌNH CHẾ TẠO/ MEMS DESIGN V VI CHẾ TẠO VÀ PHÂN LOẠI CÔNG NGHỆ MEMS/ MICROFABRICATION AND MEMS TECHNOLOGY VI CÁC LINH KIỆN MEMS ĐIỂN HÌNH/ TYPICAL MEMS DEVICES IV Thiết ... Mở đầu/ Introduction Các hệ thu nhỏ kích thước / Scaling issues for MEMS g Mô hình hóa mô phỏng/ Modeling d Simulation M d li and Si l ti Thiết kế qui trình chế tạo/ Process integration Kết luận/Conclusions ... V Sai số tính toán gồm giới hạn xác dãy số kết (truncation error) giới hạn xác phép tính (round-off error) giải phương trình 4.2 Các hệ thu nhỏ kích thước 4.2.3 Các hiệu ứng vật lý đặc biệt Tạp...
- 27
- 231
- 0
design issues for MEMS 2
Ngày tải lên :
23/04/2014, 10:18
... Mở đầu/ Introduction Các hệ thu nhỏ kích thước / Scaling issues for MEMS g Mô hình hóa mô phỏng/ Modeling d Simulation M d li and Si l ti Thiết kế qui trình chế tạo/ Process integration Kết luận/Conclusions ... Mắc song song (paralell): áp dụng cho trường hợp chia sẻ biến tác động (effort) Định luật Kirschhoff ∑I =0 Áp dụng với mạch kín: ∑ V = Áp dụng cho dòng nút i: i i -F + ek + em + eb = 4.3 Mô hình ... PATRAN, hyperMESH, Dyna-3D… Được viết chủ yếu ngôn ngữ FORTRAN Các bước thực Xây dựng mô hình (modeling) đối tượng cần tính toán nhập thông số toán, vật liệu đặc trưng (Material Properties),...
- 61
- 468
- 0
Brushless Permanent Magnet Motor Design- P1 pptx
Ngày tải lên :
02/07/2014, 08:20
... people specify and use motors in an infinite variety of applications The material presented in this text will provide the designers of systems containing motors a wealth of information about how ... the inclusion of this material would dilute the primary focus of this book, which is to understand the intricacies and tradeoffs in the magnetic design of brushless permanent-magnet motors I hope ... and three-phase motors minimize the number of power electronic devices required to control the winding currents The choice of magnet poles offers more flexibility Brushless PM motors have been...
- 30
- 387
- 0
Brushless Permanent Magnet Motor Design- P2 ppt
Ngày tải lên :
02/07/2014, 08:20
... the base of the teeth is greater Figure 2.11 A comparison of various carter coefficients 24 Chapter T Base of Tooth Flux Figure 2.12 Flux squeezing at the base of a tooth by a factor of (1 — ... permeability of the core material is several orders of magnitude greater than that of the air gap As a result, the core reluctance has little effect on the solution, and more accurate modeling of the ... function of the past history of the field intensity Because of this behavior, the magnetic properties of ferromagnetic materials are often described graphically in terms of their B-H curve, hysteresis...
- 30
- 303
- 0
Brushless Permanent Magnet Motor Design- P3 potx
Ngày tải lên :
02/07/2014, 08:20
... Trapezoidal Motors In practice there are two common forms of brushless PM motors: motors having a sinusoidal back emf, which are commonly referred to as ac synchronous motors, and trapezoidal back emf motors, ... wealth of information regarding the design of many aspects of brushless PM motors In this chapter, this information is brought together to illustrate motor magnetic design In the process of doing ... as there are motors themselves Given the body of information provided in this chapter and Chap 4, it is possible to develop equations for the design of brushless permanent-magnet motors Chapter...
- 30
- 267
- 0
Brushless Permanent Magnet Motor Design- P6 pdf
Ngày tải lên :
02/07/2014, 08:20
... simple elegance of (7.3) and (7.8) is due to the pure sinusoidal content of the back emf and phase currents Because of this elegance, a great deal of work goes into the design of some motors to minimize ... historical dominance of three-phase induction and synchronous motors and the minimal number of power electronic devices required are likely contributing factors The addition of a third phase provides ... current For two-phase motors, two H bridges are required, giving a total of eight switches to be implemented by power electronic devices Three-Phase Motors Three-phase motors overwhelmingly dominate...
- 30
- 419
- 0
Brushless Permanent Magnet Motor Design- P7 docx
Ngày tải lên :
02/07/2014, 08:20
... inductance (H) Number of turns Number of magnet poles Number of pole pairs Number of phases Number of slots Number of slots per magnet pole Number of slots per phase Nsp N Number of slots per pole ... 22-27, Universal City, CA This set of note is used by the authors in day long short courses The basics of magnetic circuit modeling are covered A very good discussion of permanent magnets and magnetizing ... Control of Electrical Drives, Springer-Verlag, New York A classic text on the control of all common motor types Li Touzhu, and G Slemon (1988), "Reduction of Cogging Torque in Permanent Magnet Motors, "...
- 15
- 480
- 0
Brushless Permanent Magnet Motor Design- P4 docx
Ngày tải lên :
02/07/2014, 08:20
... There are an infinite number of variations resulting from an infinite number of assumptions and performance tradeoffs Many of these variations are the result of years of engineering effort and insight ... terms of the flux linked by one coil due to the current in another Air gap mutual inductance is a function of the relative placement of the slots and therefore is a function of the number of phases ... following calculation of end turn resistance Each end turn bundle has ns conductors having a maximum length of O.ÔTTTp Thus application of (4.26) gives the approximate resistance of a single end turn...
- 30
- 159
- 0
Design and Implementation of a Three-Phase Induction Motor Control Scheme
Ngày tải lên :
27/10/2013, 23:15
... Wildi also presents the two types of induction motors: “the squirrel cage induction motor” and the “wound motor” An explanation of the advantages and disadvantages of each is given Essential concepts ... revolution Based on this, the software section of the design must interrupt the speed of the rotor based on the number of pulses it receives The rated speed of the induction motor used in this ... flux in the air-gap of the induction motor In this section of the report, through the use of scopes placed on nodes of interest, we will see that FO applies this principle of speed operation If...
- 93
- 693
- 1
Researching Design Learning: Issues and Findings from Two Decades of Research and Development pot
Ngày tải lên :
24/03/2014, 02:20
... part of the revision of 16+ examinations Prior to this point, there had been a twin system of qualifications at 16+; the General Certificate of Education (GCE), for the ‘top’ 25% of ability of ... General Certificate of Secondary Education Awarding Bodies One of the immediate outcomes of this project was the development by one of these awarding bodies of a new form of syllabus and examination ... without the whole-hearted professionalism of all the members of the research teams that we assembled for the projects Some individuals have been at the heart of many of our projects, and none more...
- 340
- 234
- 0
Báo cáo khoa học: "TENSE GENERATION IN AN INTELLIGENT TUTOR FOR FOREIGN LANGUAGE TEACHING: SOME ISSUES IN THE DESIGN OF THE VERB EXPERT" pot
Ngày tải lên :
01/04/2014, 00:20
... aspect of the verb, from the lexical category which the verb is a member of and, more generally, from several kinds of temporal expressions that may appear in the sentence Moreover, the choice of ... follows, in order to better understand the discussion of the Domain Expert, a sketchy account of the system mode of operation is given The problem of choosing the right verb tense in order to convey ... in order to compute some of the tense features not explicitly present in the schematic description of the exercise The first task of the expert module is therefore that of deriving possible new...
- 6
- 395
- 1
stochastic modeling of manufacturing systems advances in design, performance evaluation, and control issues - g. liberopoulos
Ngày tải lên :
08/04/2014, 12:26
... due to the inuence of Professor Horst Rittel, my professor at the University of California at Berkeley during my formative undergraduate days, who instilled much of the basis of this philosophy ... level of buffering as a function of machine efciency, line efciency, the number of machines in the system, and CVup and CVdown is introduced It leads to a reduction of lean buffering by a factor of ... the operation of the production line dened by assumptions (i)(vi) of Section Then, a set of representative distributions of up- and downtime was selected and, nally, for each member of this set,...
- 364
- 411
- 0
essential issues in soc design - designing complex systems-on-chip - y. lin (springer, 2006) ww
Ngày tải lên :
05/05/2014, 13:35
... Number -of- CBh ( CurBlock-level loop in the horizontal direction) …… … end of Number -of- CBh end of Number -of- CBv end of Number -of- SRh end of Number -of- SRv end of Number -of- MB h end of Number -of- MB ... understand the complexity of the system and each module The profiling tools can be, for example, common run time profile tools on workstation and PC, instruction profiling tools, iprof [10], or Intel® ... consists of off-chip memory, on-chip memory, and registers [12], as shown in Figure Different memory types have different features Off-chip memory, usually DRAM, offers a large amount of storage...
- 405
- 324
- 0
Báo cáo hóa học: " Technology-assisted training of arm-hand skills in stroke: concepts on reacquisition of motor control and therapist guidelines for rehabilitation technology design" ppt
Ngày tải lên :
19/06/2014, 08:20
... Schematic presentation of types of augmented feedback sources for motor performance Schematic presentation of types of augmented feedback sources for motor performance back or knowledge of results) They ... with learning of target movements [116,117] Also the finding that subjective performance evaluation or estimation of specific characteristics of some of the movement-related components of a performed ... 3-degree of freedom robot, comprising of an easy to transport aluminum frame and motor controlled nylon wires The end of each wire is Page of 18 (page number not for citation purposes) Journal of NeuroEngineering...
- 18
- 624
- 0
Research Issues in Systems Analysis and Design, Databases and Software Development doc
Ngày tải lên :
27/06/2014, 06:20
... purposes only Inclusion of the names of the products or companies does not indicate a claim of ownership by IGI Global of the trademark or registered trademark Library of Congress Cataloging-in-Publication ... “Understanding Agile Software, Extreme Programming, and Agile Modeling, ” discusses the state of research in extreme programming and agile modeling This chapter also examines research in agile software development ... approach called application-based domain modeling Chapter V, “On the Use of Object-Role Modeling for Modeling Active Domains,” discusses how the object-role modeling (ORM) language and approach can...
- 296
- 417
- 0
Xem thêm