... Trang 1CONTROL OF POWER ELECTRONICSYSTEMS FOR FUTURE MICROPROCESSOR POWER SUPPLIES Ravinder Pal Singh NATIONAL UNIVERSITY OF SINGAPORE 2010 Trang 2CONTROL OF POWER ELECTRONICSYSTEMS FOR FUTURE MICROPROCESSOR ... converter For a paralleled converter system, sensorneeds to be added for each converter The performance of any such design willdepend on the performance of the current sensing technique The output of ... the range of the error signal and the desired regulationof the output voltage, this is scheme only suitable for small range of operatingconditions For hand-held devices, DC-DC converter power supplies
Ngày tải lên: 11/09/2015, 10:06
... 1Modular Power Electronic Systems: AC-DC OperationNiu Peng Ying A THESIS SUBMITTEDFOR THE DEGREE OF MASTER OF ENGINEERINGDEPARTMENT OF ELECTRICAL & COMPUTER ENGINEERING NATIONAL UNIVERSITY OF SINGAPORE ... project Trang 31.1 The Concept of the Distributed Power Supply System(DPS) 1 1.2 The Concept of Universal Power Electronic Cell (UPEC) 4 1.3 Parts of Mode of UPEC 5 1.3.1 AC/DC operation ... 5.2.1 The Performance of Deadbeat Control under Constraints 82 5.3 Hysteresis Current Controllers 83 6 Comparison of Controllers Performance 86 6.1 Comparison of Controllers Performance
Ngày tải lên: 29/09/2015, 12:52
Analysis and design of power electronic cell for modular power electronic systems DC AC converter configurations
... consists of power electronic switchesand energy storage elements They form the power electronic circuit The control ofthe switch will depend on the mode of power conversion required Of the four ... to perform as any of the several converter topologies? One of suchapproach is the use of Power electronic building blocks Power electronic buildingblocks is a new paradigm in designing power ... and commercial systems.For efficient use of power in these systems, switched mode power converters are nec-essary Requirements of many of these system are unique, hence, power convertershave to
Ngày tải lên: 29/09/2015, 12:55
EVALUATION OF INFRASTRUCTR PROJECTS guide for cost benefit analysis
... out The results of OEEI were published in a guide and eight underlying reports A guide for the evaluation of infrastructural projects. OEEI offers a guide for the evaluation of proposed infrastructural ... policy-relevant form of information isneeded Against this background, the aim of OEEI is twofold: 1 to obtain a greater degree of agreement over the methodologicalframework for social evaluations of major ... regional data file for the analysis of the economic effects ofinfrastructure: offers an overview of a regional (panel) data set and an initial test of the limitations thereof B1: Welfare effects
Ngày tải lên: 04/10/2015, 20:00
Elementary Structural Analysis and Design of Buildings A Guide for Practicing Engineers and Students
... windward side of an upper roof That is, snow blown from an upper roof onto a lower roof (the lower roof is on the leeward side of the upper roof) will accumulate in a drift on the lower roof Also snow ... roof Also snow on a lower roof, which is blown against the wall of a building forming an upper roof (the lower roof is on the windward side of the upper roof), will form a drift (see Figure 1.9) ... Snow drifts on lower roofs (ASCE 7, 7.7) Step roofs will form snowdrifts depending upon the roof configuration and the direction of the wind in relation to the roofs Stepped roofs can accumulate
Ngày tải lên: 04/12/2019, 11:24
RHETOR: JOURNAL OF THE CANADIAN SOCIETY FOR THE STUDY OF RHETORIC 2 (2007): DISSENT AND THE RHETORIC OF REFLECTION: BARBARA LEE’S SEPTEMBER 14, 2001, SPEECH
... dimension of language use Ede and Lunsford provide more Trang 4resources for the social dimension of the persona of the created auditor The second guiding concept of this paper is the idea of the ... public deliberation on matters of war and peace, fully accepting a rhetoric of dissent, is absolutely essential It calls for the application of the age-old notion of prudence to increasingly compressed ... the “rhetoric of reflection” as a subset of a much larger (and older) area of prudential rhetoric Drawing on the ideas of Edwin Black’s “second persona” and Lisa Ede and Andrea Lunsford’s “audience
Ngày tải lên: 03/05/2024, 04:30
Journal of International Economic Policy Manual for Authors and Reviewers
... variety of ways The most blatant form of plagiarism iscopying word for word information from another source and not citing the source at all.Another form of plagiarism can occur when the information ... located (for books,preceded by a comma; for journals, preceded by a colon) Proper punctuation (use of commas, colons) is vital The examples below are again from the Style Guide for Publications for ... 8- names of the editors of the edited book and not followed by any punctuation; - for books, city of publication followed by a colon (:), name of publisher, followed by a comma and year of publication
Ngày tải lên: 18/10/2022, 19:21
527632687 400 4 2015 guide for field testing of shielded power cable systems rated 5kv and above with damped alternating current dac voltage pdf
... shield.PurposeThis guide aims to establish standardized practices for conducting off-line DAC voltage tests on installed shielded power cable systems in the field and to offer guidelines for interpreting ... Guide for Partial Discharge Testing of Shielded Power Cable Systems in a Field IEEE Std 510™, IEEE Recommended Practices for Safety in High-Voltage and High-Power Testing NFPA 70E, Standard for ... OverviewBackgroundThis guide provides a description of the methods and practices to be used in the application of damped alternating current (DAC) voltages for field testing of shielded power cable systems
Ngày tải lên: 24/11/2023, 10:26
prospects of multilevel VSC technologies for power transmission noi ve HVDC plus dung MMC
... case – very small need for AC voltage filtering to achieve a clean voltage, in comparison with the two-level circuit with PWM in Fig 4 Off Off Off Off On Off On Off Off On Off On TABLE I S TATES ... This multitude of possibilities in combination with the performance of HVDC PLUS opens up a wide range of applications for this technology: - DC connections for a power range of up to 1,000 mega- ... high and steep Use of D ispersed G eneration Use of D ispersed G eneration H G G G G G G H G H G G G More Dynamics for better Power Quality : zUse of Power Electronic Circuits for Controlling P
Ngày tải lên: 15/10/2013, 16:24
Tài liệu The Journal Of Financial And Quantitative Analysis - The Predictive Power Of Stock Market Indicators (Pdf) docx
... download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive only for your personal, non-commercial use Each copy of any part of a JSTOR transmission ... printed page of such transmission The Journal of Financial and Quantitative Analysis is published by University of Washington School of Business Administration Please contact the publisher for further ... the use of this work Publisher contact information may be obtained at http://www.jstor.org/journals/uwash.html The Journal of Financial and Quantitative Analysis ©1976 University of Washington
Ngày tải lên: 17/01/2014, 03:20
Guide for Completing Form 8823, Low-Income Housing Credit Agencies Report of Noncompliance or Building Disposition pot
... the forms and identification of appropriate follow-up actions by the IRS Content of Guide The guide includes instructions for completing Form 8823, and guidelines for determining noncompliance ... instances of noncompliance for a specific category must be remedied before the building is considered “back in compliance” for that category For example, if four units are cited for violations of the ... legal references The Guide’s revision date is identified on the cover, in the index, and at the bottom of every chapter page Purpose of Guide The fundamental purpose of this guide is to provide
Ngày tải lên: 15/03/2014, 23:20
The Help! Kit - A Resource Guide for Secondary Teachers of Migrant English Language Learners
... from Clarification of Legal Responsibilities for Limited English Proficient Students, Virginia Department of Education, 1992 The United States Department ofEducation’s Office for Civil Rights recom-mends ... (fax)www.serve.org The contents of this publication does not necessarily reflect the views of the U.S Department of Education, Office of Migrant Education, nor does mention of trade names, commercial ... author of a series of subject-specific papers (Preparing Secondary Education Teachers to Work with English Language Learners) for the Office of Bilingual and Minority Language Affairs This series of
Ngày tải lên: 17/03/2014, 17:46
Nonlinear Stability of Finite Volume Methods for Hyperbolic Conservation Laws: and Well-Balanced Schemes for Sources ppt
... satisfied, where U ∓ are the values of U on each side of C. Proof We can write Trang 12The notion of invariant domain plays an important role in the resolution of asystem of conservation laws We say ... The property for a scheme to preserve an invariant domain is an importantissue of stability, as can be easily understood In particular, the occurrence ofnegative values for density of for internal ... if for any as-of these j-Riemann invariants, one has w(U l ) = w(U r ). Proof Since we have p − m j linearly independent forms ∂ U w n in the orthogonal of ker (A(U ) − λ j (U ) Id), they form
Ngày tải lên: 23/03/2014, 01:20
Model Business Plan: A Supplemental Guide for Open Access Journal Developers & Publishers pdf
... appeal of this journal for publication ofresearch, likely willingness of leading authors to publish inthis journal • Noteworthy competition, how addressed in this alternative(even free journals ... Supplemental Guide for Open Access Journal Developers & Publishers (Edition 1) There is also the Guide to Business Planning for Launching a New Open Access Journal (Edition 2) and the Guide ... Supplemental Guide for Open Access Journal Developers & Publishers Edition 1, July 2003 Trang 2The series of OSI guides to assist journal developers and publishers consists of threeseparate
Ngày tải lên: 23/03/2014, 02:20
Receiving and Shipping Dangerous Goods - A Guide to the Transportation of Dangerous Goods Regulations for Photo Processors and Digital Imagers pptx
... keep in mind that much of the information that’s required for transporting dangerous goods is for the benefit of the emergency responder In the event of a spill or release of a dangerous good, ... least control over the movements of the dangerous goods and therefore,bears the least responsibility for the safety of the shipment The receiver is responsible for thefollowing: • Ensuring the ... GoodsA Guide to the Transportation of Dangerous Goods Regulations for Photo Processors and Digital Imagers Trang 2Receiving and Shipping Dangerous Goods: A Guide to theTransportation of Dangerous
Ngày tải lên: 23/03/2014, 08:21
Guide for the Selection of Chemical and Biological Decontamination Equipment for Emergency First Responders ppt
... the Office of Juvenile Justice and Delinquency Prevention, and the Office for Victims of Crime. U.S. Department of Justice Office of Justice Programs National Institute of Justice Guide for the ... Department of Justice Office of Justice Programs National Institute of Justice Law Enforcement and Corrections Standards and Testing Program National Institute of Justice Guide for the Selection of Chemical ... Department of Justice. The National Institute of Justice is a component of the Office of Justice Programs, which also includes the Bureau of Justice Assistance, the Bureau of Justice Statistics, the Office
Ngày tải lên: 23/03/2014, 23:20
Tài liệu RULES OF GRAPHIC DESIGN GUIDE FOR FAMILY HISTORY PROJECTS ppt
... else for more information. Regardless of your chosen color scheme for a website, it is appropriate to include blue text for hyperlinks. Color Used properly, color can set the tone for your ... provider of the photo in the caption as well Guide for Family History Projects By Sharon Kovach Rules of Graphic Design Design like a pro. There’s a distinct difference in the look of ... different layout variation for the home page, but use the same layout for the rest of the pages. Use only one column for your family history text. Rule 9: Plenty of navigation Put a navigation...
Ngày tải lên: 21/02/2014, 15:20
Gale Encyclopedia of Surgery: A Guide for Patients and Caregivers doc
... performed for medical reasons (for example, if an abdominal hernia is the cause of the protruding abdomen). A number of fees must be taken into consideration when calculating the total cost of ... secure environment. This model of adult day care is offered to persons with a variety of chronic medical conditions in- cluding the following: ã adults with Alzheimers disease, other forms of demen- tia, or ... needs of fami- lies and other caregivers. Before women entered the workforce, they were available to care for relatives at home. Today, adult day care provides a secure, alterna- tive source of...
Ngày tải lên: 06/03/2014, 18:20
Gale Encyclopedia of Surgery: A Guide for Patients and Caregivers pot
... gastroduodenostomies do you perform in a year? ã Will there be a scar? The Gale Encyclopedia of Surgery: A Guide for Patients and Caregivers is a unique and invaluable source of information for anyone who is ... gastrectomies do you perform in a year? ã Will there be a scar? for various forms of gastric (stomach) cancer. For many patients, this entails removing not only the tumor, but part of the stomach as ... rates Alternatives Resources Inclusion criteria A preliminary list of surgeries and related topics was compiled from a wide variety of sources, including professional medical guides and textbooks,...
Ngày tải lên: 06/03/2014, 18:20
Báo cáo khoa học: "Local Histograms of Character N -grams for Authorship Attribution" ppt
... results for these data sets as well: BOW and LOWBOW histograms ob- tained comparable performance to each other and the BOLH formulation performed the best. The BOLH formulation outperforms state of ... authorship attribution methods. Journal of the American Society for Information Science and Technology, 60(3):538– 556. M. Tearle, K. Taylor, and H. Demuth. 2008. An algorithm for automated authorship ... the useful- ness of function words for authorship attribution. In Proceedings of the Joint Conference of the Association for Computers and the Humanities and the Association for Literary and...
Ngày tải lên: 07/03/2014, 22:20