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3-Phase Power Factor Correction Using Vienna Rectifier Approach


Posted by: seminar class
Created at: Wednesday 04th of May 2011 05:16:41 AM
Last Edited Or Replied at :Sunday 15th of May 2011 03:05:16 PM
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ghly efficient method of high current, 3-Phase AC to DC conversion and is
particularly attractive for achieving unity power factor operation. In figure-1 ACR, ACY
and ACB are 440V, 50Hz, 3-Phase sinusoidal line Voltages. -Vdc and +Vdc are the DC
outputs connected to load. There are three semiconductor switches, corresponding to
each phase T1, T2 and T3. These are switched continuously at around 25 KHz.


Download full report
http://www.google.com/url?sa=t&source=web&cd=1&ved=0CBUQFjAA&url=http%3A%2F%2Fixdev.ixys.com%2FDataS heet%2F353e9f8b-9b0c-46d6-bede-43b3c4a25e7a.doc&ei=0ybBTbPaG..................[:=> Show Contents <=:]



Fuzzy Logic based fault detection in induction machines using Lab view


Posted by: computer science technology
Created at: Tuesday 19th of January 2010 10:29:00 PM
Last Edited Or Replied at :Tuesday 19th of January 2010 10:29:00 PM
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uction motor in three phase reference frame using Matlab/Simulink and designing an intelligent system for condition monitoring of the motors. The phase two concerned with the implementation of On-line condition monitoring system through LabView...................[:=> Show Contents <=:]



electronic projects for engineering students


Posted by: electronics seminars
Created at: Friday 15th of January 2010 12:51:22 PM
Last Edited Or Replied at :Wednesday 12th of December 2012 01:17:39 AM
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e Single-stage Uninterruptible AC-DC Converters “
hh. A Hybrid PWM Resonant Converter Suitable for Wide Input Variation “
ii. Family of Soft-Switching PWM Converters With Current Sharing in Switches “
jj. Design, study, modeling and control of a new single-phase high power factor rectifier based on the single-ended primary inductance converter and the Sheppard“Taylor topology “
kk. Implementation of a Zero Voltage Switching Sepic-Cuk Converter “
ll. Sensor less Control of SEPIC and Cuk Converters for DC Motors using solar Panels “
mm. Bridg..................[:=> Show Contents <=:]



electrical engineering projects ideas


Posted by: electronics seminars
Created at: Friday 15th of January 2010 06:35:32 AM
Last Edited Or Replied at :Saturday 26th of March 2011 10:28:37 AM
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OPERATED INDUCTION MOTOR SPEED CONTROL THROUGH RF COMMUNICATION
xxx. PWM BASED SPEED CONTROL OF DC MOTOR USING 8052 CONTROLLER
yyy. PWM BASED SPEED CONTROL OF AC MOTOR USING 8052 CONTROLLER..................[:=> Show Contents <=:]



Micro controller based automated irrigation system


Posted by: Electrical Fan
Created at: Monday 14th of December 2009 07:55:48 AM
Last Edited Or Replied at :Wednesday 11th of April 2012 10:15:32 PM
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re still a few important sectors in our country where automation has not been adopted or not been put to a full-fledged use, perhaps because of several reasons one such reason is cost. One such field is that of Electric current. Power has been one of the primary source of man.. Electric power is an important part of the industrial and IT sectors in our country. This power line fault detection and correction system monitors and controls the single phase AC power. This Automatic correction and detection system is process to control of industrial machinery and processes, thereby replacing human ..................[:=> Show Contents <=:]



electrical engineering projects for final year


Posted by: computer science crazy
Created at: Tuesday 10th of November 2009 05:25:09 AM
Last Edited Or Replied at :Saturday 11th of February 2012 12:31:30 AM
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king Model of Solar Power Plant
45. Speed Control of D.C Motor using D.C Drives
46. Prepaid Card Energy Meter
47. Vector Controlled AC Drive
48. Reciprocating Motor
a. / C Relay
49. Construction & Design of Three phase 1 H.P Motor
50. Micro-controller based differential protection of Transformer
51. Design Optimization of Three phase squirrel cage Induction Motor
52. Speed Control of D.C Motor using Simulation
53. Micro-controller based Control of any electrical Machine
54. Inverter (MOSFET based)
55. V / F Speed Control of Three Phase Induction Motor
56. Linear Induction Mo..................[:=> Show Contents <=:]



Design of Voltage Regulator


Posted by: Computer Science Clay
Created at: Sunday 25th of January 2009 02:24:07 AM
Last Edited Or Replied at :Sunday 25th of January 2009 02:24:07 AM
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ng
= pri. turns x area of pri. conductor + sec. turn x area of sec. turn
= Tp . a p + Ts .as
taking the current density ? to be the same in both primary and secondary winding
a p = Ip /? and as = Is /?
Total conductor area in window
Ac = Tp.Ip/? + B.Is/?
= ( Tp.Ip +Ts.Is) / ?
= 2AT / ?
As Tp.Ip = Ts.Is = AT if we neglect magnetizing emf.
The window space factor Kw is defined as the ratio of copper area in window to total area of window.
iii) ?????? Kw = conductor area in window = AC
total area of window AW
? ..................[:=> Show Contents <=:]



Solar power satellite


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:09:26 PM
Last Edited Or Replied at :Tuesday 31st of January 2012 11:18:59 PM
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nt energy prices) unless at least one of the following conditions is met:
* Sufficiently low launch costs can be achieved
* A determination (by governments, industry, ...) is made that the disadvantages of fossil fuel use are so large they must be substantially replaced.
* Conventional energy costs increase sufficiently to provoke serious search for alternative energy

In common with other types of renewable energy such a system could have advantages to the world in terms of energy security via reduction in levels of conflict, military spending, loss of life, and avoiding futu..................[:=> Show Contents <=:]



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