and+parallel+loaded+resonant+dc+dc+converters

New control strategy for variable speed wind turbine with DC DC converters

New control strategy for variable speed wind turbine with DC DC converters

... is not inverted The voltage ratio is defined as: VDCout = −u (1 − u ) VDCin Where VDCin is the supply voltage, VDCout is the output voltage and u is the duty cycle ratio The state-space equation ... the wind speed and Cp is turbine power coefficient which depends on the tip speed ratio (2) and θ is the pitch angle The power coefficient is different for every particular turbine and a convenient ... this work) As the foreseen power converter configuration consists of passive diode rectifier and of DC- DC converter, the speed control is achieved by the noninverting buck-boost converter The reference...

Ngày tải lên: 03/01/2014, 19:15

5 462 0
AC to DC converters

AC to DC converters

... resistor id (2-15) ud E R ud O α θ δ ωt id E Id ωt O a) b)  With resistor and inductor When L is large enough, the output voltage and current waveforms are the same as ordinary inductive load When L ... O iC iR ud+ C R ia ωt b) O ωt VD4VD6VD2 a) c) 2.5 Harmonics and power factor of rectifier circuits 2.5.1 Basic concepts of harmonics and reactive power For pure sinusoidal waveform For periodic ... uac ωt Ud = 2π 5π +α π +α ∫ 2U sin ωtd (ωt ) = U cos α = 1.17U cosα (2-18) 2π Thyristor voltage and currents, transformer current : I = I VT = I d = 0.577 I d (2-23) U FM = U RM = 2.45U (2-25)...

Ngày tải lên: 14/05/2014, 21:59

84 311 0
/’ * DESIGNING MAGNETIC COMPONENTS FOR HIGH FREQUENCY DC-DC CONVERTERS Colonel Wm. T. ppsx

/’ * DESIGNING MAGNETIC COMPONENTS FOR HIGH FREQUENCY DC-DC CONVERTERS Colonel Wm. T. ppsx

... topologies used in dc to dc converters There are now available new integrated circuit pulse-width-modulating chips (1’WM) that simplify the dc to dc converter design These new PWM chips and the ease ... FREQUENCY DC- DC CONVERTERS a @ ii Other Books and Software by the Author BQQks Mo~netic Core Selection for Trnnsfortners mui lnchctors Marcel Dekker, 270 Madison Ave., New York, NY 10016 Transformer and ... beginning of the book and continuing through to the end, will gain a comprehensive knowledge in transformer and inductor design for different topologies used in dc to dc converters No responsibility...

Ngày tải lên: 06/08/2014, 10:20

456 332 0
High efficiency and digitally controlled AC DC converter with power factor correction and fast output voltage regulation

High efficiency and digitally controlled AC DC converter with power factor correction and fast output voltage regulation

... waveform The DC flux density BDC (t) and the DC magnetizing field intensity HDC (t) are given by BDC (t) = HDC (t) = NIL (t) Ac R NIL (t) lm (2.10) (2.11) The AC flux density ∆B(t) and the AC magnetizing ... loss BDC HDC H ∆H HDC: DC magnetizing force ∆H : AC magnetizing force BDC: DC flux density ∆B : AC flux density Figure 2.4: B-H hysteresis loop Substituting (2.7) into (2.6), we have B(t) = BDC ... whereas other DCM control schemes require multiple clock cycles There is a smooth transition between CCM and DCM operations of the boost converter in each AC half cycle and between heavy and light...

Ngày tải lên: 09/09/2015, 17:53

240 599 0
Programming Serial and Parallel Ports

Programming Serial and Parallel Ports

... interface and interaction The oldest is “simple parallel port,” which the API calls MODE_ SPP This is an output-only parallel port Other common modes include EPP (extended parallel port, MODE_ECP) and ... 10.7 and 10.8 for this), since you know what the response to your command should be and don’t proceed until you have received that response A well-known example is using a standard Hayes-command-set ... two of these DataThreads, one to handle data “traffic” from the keyboard to the remote, and one to handle bytes arriving from the remote and copy them to the standard output For each of these the...

Ngày tải lên: 27/10/2013, 14:15

32 319 0
Tài liệu ADVANCED COMPUTER ARCHITECTURE AND PARALLEL PROCESSING doc

Tài liệu ADVANCED COMPUTER ARCHITECTURE AND PARALLEL PROCESSING doc

... COMPUTER ARCHITECTURE AND PARALLEL PROCESSING TEAM LinG - Live, Informative, Non-cost and Genuine ! WILEY SERIES ON PARALLEL AND DISTRIBUTED COMPUTING SERIES EDITOR: Albert Y Zomaya Parallel & Distributed ... (1990) El-Rewini, H and Lewis, T G Distributed and Parallel Computing, Manning & Prentice Hall, 1998 Flynn Computer Architecture: Pipelined and Parallel Processor Design, Jones and Bartlett, 1995 ... Alexey L Lastovetsky Tools and Environments for Parallel and Distributed Computing Tools / Salim Hariri and Manish Parashar Distributed Computing: Fundamentals, Simulations and Advanced Topics, Second...

Ngày tải lên: 23/12/2013, 16:15

287 488 0
Tài liệu Advance computer architecture and parallel processing pptx

Tài liệu Advance computer architecture and parallel processing pptx

... Perspective / Zahir Tari and Omran Bukhres Pipelined Processor Farms: Structured Design for Embedded Parallel Systems / Martin Fleury and Andrew Downton Handbook of Wireless Networks and Mobile Computing ... Organization and Architecture / Mostafa Abd-ElBarr and Hesham El-Rewini Advanced Computer Architecture and Parallel Processing / Hesham El-Rewini and Mostafa Abd-El-Barr ADVANCED COMPUTER ARCHITECTURE AND ... Experimental Parallel Computing Architectures, North-Holland, 1987 Duncan, R A survey of parallel computer architectures Computer, 23 (2), – 16 (1990) El-Rewini, H and Lewis, T G Distributed and Parallel...

Ngày tải lên: 25/01/2014, 03:20

288 412 0
algorithms and parallel computing

algorithms and parallel computing

... Toward Automating Parallel Programming Algorithms Parallel Computing Design Considerations 12 Parallel Algorithms and Parallel Architectures 13 Relating Parallel Algorithm and Parallel Architecture ... program correctness and data integrity 1.5 PARALLEL ALGORITHMS AND PARALLEL ARCHITECTURES Parallel algorithms and parallel architectures are closely tied together We cannot think of a parallel algorithm ... Algorithms and parallel computing/Fayez Gebali p cm.—(Wiley series on parallel and distributed computing ; 82) Includes bibliographical references and index ISBN 978-0-470-90210-3 (hardback) Parallel...

Ngày tải lên: 28/04/2014, 15:40

365 809 0
fabrication and design of resonant microdevices. micro and nanotechnologies, 2008, p.198

fabrication and design of resonant microdevices. micro and nanotechnologies, 2008, p.198

... independently satisfied as to such suitability, and must meet all applicable safety and health standards To my father, mother, and wife for their love and support Contents Series Editor’s Preface ... thank him for all his understanding I have been blessed with the support and love from my parents, Behrooz and Masoumeh, my sister, Behnaz, and my brothers, Behzad and Behiad, throughout my life ... resonators with quality factors of and 25 and identical resonant frequencies of ω0 = 1000 rad/sec Figure 1.4 The step response of a resonator with a Q of 25 and resonant frequency of ω0 = 1000 rad/sec...

Ngày tải lên: 04/06/2014, 15:18

198 360 0
báo cáo hóa học:" Fourier-transform infrared anisotropy in cross and parallel sections of tendon and articular cartilage" pptx

báo cáo hóa học:" Fourier-transform infrared anisotropy in cross and parallel sections of tendon and articular cartilage" pptx

... of amide I (a) and amide II (b) of tendon in the regular, parallel and cross sections Absorption anisotropy of amide I (a) and amide II (b) of tendon in the regular, parallel and cross sections ... tendon, the long axis of the specimen is parallel to the long axis of the block; consequently, the regular and parallel sections of tendon have the fibrils running parallel in the plane of the sections ... to the anisotropy in tendon's regular and parallel sections The parallel sections from cartilage's radial zone have a nearly isotropic amide II absorption and a distinct amide I anisotropy The...

Ngày tải lên: 20/06/2014, 01:20

12 384 0
SERIAL AND PARALLEL ROBOT MANIPULATORS – KINEMATICS, DYNAMICS, CONTROL AND OPTIMIZATION pot

SERIAL AND PARALLEL ROBOT MANIPULATORS – KINEMATICS, DYNAMICS, CONTROL AND OPTIMIZATION pot

... M2P and M3P are regarded as n1, n2 and n3, respectively The γ1, γ2 and γ3 illustrate the angles BPM , M PB, and BPM , respectively Since two lines AB and M1M2 are parallel, the angles PM M and ... Velázquez Chapter On the Stiffness Analysis and Elastodynamics of Parallel Kinematic Machines Alessandro Cammarata Chapter Parallel, Serial and Hybrid Machine Tools and Robotics Structures: Comparative ... J s and J m are the mass moment of inertia of the ball-screw and motor, bs and bm are the viscous damping coefficient of the ball-screw and motor, p and n are the pitch of the ball-screw and...

Ngày tải lên: 27/06/2014, 00:20

468 378 0
DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 1 ppsx

DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 1 ppsx

... DISTRIBUTED AND PARALLEL SYSTEMS CLUSTER AND GRID COMPUTING THE KLUWER INTERNATIONAL SERIES IN ENGINEERING AND COMPUTER SCIENCE DISTRIBUTED AND PARALLEL SYSTEMS CLUSTER AND GRID COMPUTING ... way of exchanging data in UNIX Commands usually read from standard input and write to standard output, so if we want glogin to execute a particular command and pass its information to the client ... distributed and parallel computing DAPSYS started under a different name in 1992 (Sopron, Hungary) as a regional meeting of Austrian and Hungarian researchers focusing on transputer-related parallel...

Ngày tải lên: 08/08/2014, 23:21

23 224 0
DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 2 potx

DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 2 potx

... DISTRIBUTED AND PARALLEL SYSTEMS Figure Structure and operation of the Batch Execution Service information and exports it to the client on request Figure also shows a JGrid information service entity and ... create and execute dynamic grid applications This requires the ability to execute sequential and parallel interactive and batch applications, support reliable execution using checkpointing and migration, ... their needs and personal preferences while enjoying platform independence and reliable execution Interactive as well as batch execution modes should be available for sequential and parallel programs...

Ngày tải lên: 08/08/2014, 23:21

23 335 0
DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 3 pdf

DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 3 pdf

... R., and Sunderam, V (1994) PVM: Parallel Virtual Machine—A Users’ Guide and Tutorial for Networked Parallel Computing MIT Press, Cambridge, MA [Gelernter and Carriero, 1992] Gelernter, David and ... partitioned and can be accessed by every thread UPC comprises three methods for synchronization: The notify and the wait statement, the barrier command, which is a combination of notify and wait, and ... considered is not severe, and in many practical situations it may be outweighed by the greatly reduced coding and debugging effort for UPC and CORSO 46 DISTRIBUTED AND PARALLEL SYSTEMS One of...

Ngày tải lên: 08/08/2014, 23:21

23 237 0
DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 4 pps

DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 4 pps

... minutes) for different configurations and parallel solutions c) details about the implemented parallel programs and the computers used 62 DISTRIBUTED AND PARALLEL SYSTEMS wireless connectivity ... 3, 5, and 11) and two slaves running on FC The master will the tasks corresponding to the invalid processes with ranks equal to and 11, and the slaves will the tasks of processes with rank and ... Computing, Karlsruhe, Germany [Zandy and Miller, 2002] Zandy, V and Miller, B (2002) Reliable network connections In Annual International Conference on Mobile Computing and Networking, pages 95–106,...

Ngày tải lên: 08/08/2014, 23:21

23 362 0
DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 5 ppt

DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 5 ppt

... Development and Debugging Environment for Parallel Programs”, Journal of Parallel Computing, Haring, G., Kacsuk, P., Kotsis, G., (Eds.), “Distributed and Parallel Systems: Environments and Tools”, ... International Conference on Parallel Processing and Applied Mathematics (PPAM’99), Kazimierz Dolny, Poland (September 1999) [13] Wolf F., and Mohr B EARL - A Programmable and Extensible Toolkit for ... supported by the following projects and grants: Hungarian OTKA T042459, and Hungarian IHM 4671/1/2003 project 84 DISTRIBUTED AND PARALLEL SYSTEMS lenge is the handling of non-determinism, which...

Ngày tải lên: 08/08/2014, 23:21

23 275 0
DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 6 pps

DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 6 pps

... applications and to add an intelligent brokering layer above the condor pools that are not flocked to each other any more Currently both sequential jobs and parallel jobs parallelized by Parallel ... balancing, checkpointig, performance analysis and visualization) for development and execution of parallel applications on clusters, Grid systems and supercomputers The high-level graphical environment ... Vesseur, and P.M.A Sloot, “DynamicPVM: Dynamic Load Balancing on Parallel Systems”, In W.Gentzsch and U Harms, editors, Lecture notes in computer sciences 797, High Performance Computing and Networking,...

Ngày tải lên: 08/08/2014, 23:21

23 278 0
DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 7 pdf

DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 7 pdf

... (for multi-processor job managers) standard output and input and also a list and description of parameters: name, input, output, mandatory, order, file, command-line, fixed Traffic simulation ... paper describes how MadCity is offered as a Grid service using the GEMLCA architecture and how GEMLCA and MadCity visualisation are connected to the P-Grade portal [4] and workflow solutions ... simulator must be parallelised to meet the real-time requirements for large road networks The SIM of MadCity is parallelised using P-Grade Figure shows the parallel simulation structure of MadCity using...

Ngày tải lên: 08/08/2014, 23:21

23 346 0
DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 8 pps

DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 8 pps

... between and are better than that between and and the badness of the first satisfiable demand on the edge between and is not greater than that of the satisfied demand on the edge between and These ... A Power, Adarsh Patil, Sunil John, and John P Morrison WebCom-G Proceedings of the international conference on parallel and distributed processing techniques and applications (PDPTA 2003), Las ... communication standards and protocols Real ecommerce was born out of the opportunity offered by the World Wide Web and triggered new IT researches again After the unrealistic hype of the 90’s and the...

Ngày tải lên: 08/08/2014, 23:21

23 229 0
DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 9 docx

DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 9 docx

... Synchronous Parallel ML [12], a functional language for Bulk Synchronous Parallelism (in particular to be able to use with MSPML 186 DISTRIBUTED AND PARALLEL SYSTEMS work done on proof of parallel ... We end with related work, conclusions and future work (sections and 5) Minimally Synchronous Parallel ML Bulk Synchronous Parallel (BSP) computing is a parallel programming model introduced by ... functions constitutes the standard MSPML library (http://mspml.free.fr) For example, the direct broadcast function which realizes a broadcast can be written: 188 DISTRIBUTED AND PARALLEL SYSTEMS The...

Ngày tải lên: 08/08/2014, 23:21

23 418 0
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