voltage line voltage and current in a wye system
TRANSFORMER AND INDUCTOR DESIGN HANDBOOK - COLONELWM t MCLYMAN
Ngày tải lên :
22/04/2014, 16:52
... Simulation, and Analysis, edited by Ricardo F Garzia and Mario R Garzia 62 Linear Circuits, Systems, and Signal Processing: Advanced Theory and Applications, edited by Nobuo Nagai 63 High -Voltage ... by Marcel Dekker, Inc All Rights Reserved 51 conductor area/wire area 52 wound area/usable window 83 usable window area/window area S4 usable window area/usable window area + insulation area Snp ... Hs magnetizing force at saturation, oersteds I current, amps Ic charge current, amps AI delta current, amps Idc dc current, amps Ijn input current, amps ILine input line current, amps Iphase input...
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Design of a wide input supply range buck boost converter
Ngày tải lên :
04/10/2015, 15:44
... that the voltage generated has a wide range and it can reach up to 8.8V as the wind speed reaches 6.7m/s Again, - a linear regulator is used to generate a stable output voltage to power the system, ... current peak is controlled, without damaging the device and to allow startup operations with minimal input voltage In addition, a novel internal power management system is implemented and it allows ... there are two main drawbacks in using the linear regulator Firstly, the output regulated voltage can only be - a stepped down voltage of the input supply Hence, limiting its application in systems...
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DC bus control of variable speed wind turbine using a buck boost converter
Ngày tải lên :
03/01/2014, 19:15
... Hydro-Québec, Natural Resources Canada and the Natural Sciences and Engineering Research Council of Canada VII [1] REFERENCES C.L Kana; M Thamodharan and A Wolf; System management of a wind-energy ... Vdc, and line to line voltage VLL and phase voltage V, is shown as following, V dc = V dc = π π 2V L L (6) 6V (7) From (3) and (7), the equation of Idc and I, concisely expressed is obtained ... Bose, and R J Spiegal, “Design and performance evaluation of a fuzzy-logic-based variable-speed wind generation system, ” IEEE Trans Ind Applicat., vol IA-33, pp 956– 964, July/Aug 1997 [10] W Quincy...
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Research on a novel buck boost converter for wind turbine systems
Ngày tải lên :
03/01/2014, 19:16
... grid is in the negative half cycle and the discharging current has an opposite direction Then similar arguments regarding energy exchange and transfer in Mode can be also applied to Mode As a result, ... practical implementation of an inverter control, a sinusoidal reference wave, serving as the modulating signal, is compared with a triangular wave, serving as the carrier signal The intersection points ... this inverter have proved its feasibility for dc-ac conversion in wind turbine applications ACKNOWLEDGMENT The authors wish to thank Natural Sciences and Engineering Research Council of Canada (NSERC)...
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nghiên cứu và thiết kế bộ biến đổi buck-boost pfc
Ngày tải lên :
22/06/2014, 23:20
... Power Factor Hệ số công suất PFC Power Factor Corrector Bộ nâng cao hệ số công suất THD Total Harmonic Distortion Tổng hệ số méo sóng hài IEC International Electrotechnical Commission Ủy ban Kỹ ... ta phải điều khiển qua ReL R eL vin (t) Ts i L (t) Ts vi,ref Ts k m k in vcv Ts Rs vi (t) Ts k m k in vcv Ts Rs (2.22) Ta có quan hệ Re ReL sau: Re vin (t) Ts iin ... thiết, dòng điện sau cầu chỉnh lưu có dạng n a sin chuẩn: iin (t) Irms sin(l t) (4.5) Khi đó, ta có công suất tức thời đầu vào biến đổi là: pin (t) vin (t).iin (t) Vin,rms I rms (1 ...
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Dynamic performance improvement in boost and buck boost derived power electronic converters
Ngày tải lên :
16/09/2015, 15:54
... Singh, Sahoo Sanjib Kumar, Shivanajay Marawaha, Siew Chong, Teo Keng Hon, Xu Xinyu, and Yin Bo My sincere thanks to B Eng student Agung Prasteya Susanto, for assisting me in building hardware and ... results associated to my research project Above all, I thank my parents Prof E V Kanakasabai, and Mrs Swarnalatha and my sister Mrs Lalitha Maheshwaran for giving me enough confidence and support ... converter is obtained Many papers [3]-[11] found in literature explain several ways of getting the mathematical model of switching converters Among them, state-space averaging and linearization technique...
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Thiết kế cấu trúc điều khiển bộ biến đổi buck boost
Ngày tải lên :
10/04/2016, 23:46
... PDđạtđượctầnsốcắtdướitầnsốfRHP =>fc=800Hz vàcóđộdựtrữphamongmuốn 450 Sửdụnglệnh [mag,phase]=bode(Gvd,2*pi*800) ta Theo côngthức 3.102 trongbàigiảng ta có : Phacủabộđiềukhiểnlà 0,041 Ta cóđồthịbodehệhở Thiết kế cấu ... diotD : Hai van chịuđượcđiệnáp Vậynênchọn van V III Thiếtkếbộđiềukhiểntheochếđộđiềukhiểnđiệnáp Sơđồkhốicầutrúcđiềukhiểntheođiệnáp : Ta cóhàmtruyềngi a iệnápđầuravàhệsốđiềuchế : Dạngkháccủahàmtruyềnnày ... Môhìnhtínhiệunhỏcủabộbiếnđổi DC/DC : Ta có Tínhtoáncácgiátrịđãcho : Ta có : II Tínhtoánchọn van Dòngtải : Thiết kế cấu trúc điều khiển biến đổi Buck-Boost Dòngtrungbình qua van V := Dòngtrungbình qua diotD...
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Boost Your Marketing ROI with Experimental Design
Ngày tải lên :
24/10/2013, 08:20
... case In credit card marketing, the possible combinations of brands, cobrands, 146 Almquist and Wyner annual percentage rates, teaser rates, marketing messages, and mail packaging can quickly add ... experimental design can enhance a marketing campaign Last year, 154 Almquist and Wyner Crayola, a division of Binney & Smith and Hallmark, launched a creative arts and activities portal on the Internet ... psychology, and pharmaceutical clinical trials, and they are well known to most statisticians Sir Ronald A Fisher was among the first statisticians to introduce the concepts of randomization and analysis...
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AN0804 design alternatives to the TC682 for performing inverting voltage doubler functions
Ngày tải lên :
11/01/2016, 14:26
... implementing an inverting voltage doubler function using Microchip’s power management ICs Table summarizes each approach and identifies the advantages and disadvantages of each Newer state-of-the-art ... Chambers Floor, Wing A (A3 /A4 ) No 11, O’Shaugnessey Road Bangalore, 560 025, India Tel: 91-80-2290061 Fax: 91-80-2290062 Japan Benex S-1 6F 3-18-20, Shinyokohama Kohoku-Ku, Yokohama-shi Kanagawa, ... Reserved Printed on recycled paper Microchip received QS-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona in July...
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AN1311 single cell input boost converter design
Ngày tải lên :
11/01/2016, 16:55
... boost inductance and output capacitance APPLICATIONS AND CONSIDERATIONS Input capacitance should be a minimum of 4.7 µF Additional capacitance should be added for applications that are located far ... degrees and the gain margin to approximately 10 dB A phase margin of 40 degrees is considered marginal for stability; as the input voltage changes, the phase margin will continue to decrease to ... converter straight forward while using the standard 4.7 µH inductor and 10 µF output capacitor Under limited output current and input voltage range, the inductor and capacitor values can be changed...
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EMBEDDED LINUX SYSTEM DESIGN AND DEVELOPMENT.pdf
Ngày tải lên :
04/08/2012, 14:23
... Cataloging -in- Publication Data Raghavan, P (Pichai), 1973Embedded Linux system design and development / P Raghavan, Amol Lad, Sriram Neelakandan p cm Includes bibliographical references and index ... registered trademarks and ARM7 and ARM9 are trademarks of Advanced RISC Machines, Ltd Ⅲ AMD is a registered trademark of Advanced Micro Devices, Inc Ⅲ Intel and Pentium are registered trademarks and i386 ... Linux and related applications is so large that getting a feel for what is available and what can be done is challenging Seeing all the pieces separately and working together can help you make...
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CMP book embedded systems design
Ngày tải lên :
16/08/2012, 09:40
... companies to distinguish their products are often claimed as trademarks In all instances where CMP Books is aware of a trademark claim, the product name appears in initial capital letters, in all ... motherboard, but at least the code ran As another example of hardware/software partitioning, you can purchase a modem card for your PC that plugs into an ISA slot and contains the modulation/demodulation ... exist as two pieces: a debug kernel in the target system and a host application that communicates with it and manages the source database and symbol tables (You’ll learn more about this later on as...
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Implementing an 8 bit Processor based Design in an FPGA
Ngày tải lên :
17/08/2012, 09:12
... 2-connector daughter board attached to the NanoBoard-NB1 We will add a configuration and constraint file to this The constraint file will specify the device and determine the pin numbering To create a new ... LiveDesign, NanoBoard, NanoTalk, P-CAD, SimCode, Situs, TASKING, and Topological Autorouting and their respective logos are trademarks or registered trademarks of Altium Limited or its subsidiaries All ... Wire and Place » Bus commands Figure Initial wiring – placement of wires and buses Connect the RAMS_8x1K’s ADDR[9 0] pin to the ROMADDR[15 0] pin on the TSK5 1A_ D symbol using a bus joiner Place...
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Bao cao - Design Patterns.pdf
Ngày tải lên :
24/08/2012, 13:53
... Role name vv Facade Subsystem class Facade Collaboration name Ký hiệu cho mẫu cộng tác Các vai trò liên quan mẫu Facade II.Nội dung mẫu Design pattern Nhóm Creational 1.Abstract factory: (tần ... Client (AnimalWorld) Sử dụng giao diện khai báo lớp AbstractFactory AbstractProduct Cài đặt cho lớp WidgetFactory: class WidgetFactory { public: virtual Window* CreateWindow(); virtual ScrollBar* ... design pattern chia thành nhóm: Creational, nhóm Structural,nhóm behavioral NhómCreational Gồm có pattern: AbstractFactory, Abstract Method, Builder, Prototype, Singleton Nhóm liên quan tới việc...
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Design and Implement a SQL Server Database
Ngày tải lên :
25/08/2012, 09:00
... "database" chọn "New Database" hình vẽ sau: Sau việc đánh tên database click OK Ngoài dùng SQL script để tạo database Khi ta phải rõ vị trí primary data file transaction log file Ví dụ: USE master ... gọi data cache), sau data data cache thay đổi(những trang bị thay đổi gọi dirtypage) Tiếp theo thay đổi ghi vào transaction log file người ta gọi write-ahead log Cuối trình gọi Check Point Process ... quan hệ Many to Many Trong trường hợp người ta thường dùng table trung gian để giải vấn đề (table AuthorBook) Ðể có database tương đối hoàn hảo ngh a thiết kế cho data ch a database không thừa...
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Brand Identity System Design
Ngày tải lên :
27/08/2012, 09:00
... John Bellamans, BrainMark Vietnam Brand Identity System | insight Brand Identity System | M cl c N i dung L im u Trang Logo & nh ng nguyên t c b n 17 Ý ngh a 18 Kích thư c không gian xung quanh logo ... án Tư v n, Công ty BrainMark Vietnam, ho c vui lòng chuy n tin qua email: info@brainmarkvietnam.com BrainMark Vietnam Brand Identity System | “Thi t k h th ng nh n di n thương hi u bư c k thu ... B tài li u BrainMark Vietnam biên so n c ki m tra ch t lư ng theo tiêu chu n c a BrainMark International Group tháng năm 2007 Giám c i u Hành Nguy n Thanh Tân, MBA 225D Tr n Quang Kh i, P Tân...
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Graphic Design Business Book
Ngày tải lên :
27/08/2012, 09:39
... exchanging files when working together on a project That means keeping operating systems and software compatible; providing routine backups for all working files; having a manageable archiving and ... plan than you would be able to make as an individual The disadvantages include, again, extra paperwork and the need for meetings, as well as the expenses of creating and, if necessary, dissolving ... and live up to high professional standards, and treat their colleagues with respect are the leaders who are considered ideal role models and attract and maintain loyal staff ■ SETUP ■ It’s easy...
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