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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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3. It needs only three active switches, i.e. MOSFETS
4. It is Operational even in presence of unbalanced mains or only two phases.
5. Total switching losses are reduced by a factor of six, assuming switching
frequency below 50 KHz.
6. Any malfunction in control circuit does not manifest itself in short circuit of output or
PFC front end.
7. Sinusoidal input currents with Power Factor = 0.997, THD<5% and overall
efficiency > 97% are obtainable with current designs.
As can be seen, Vienna Rectifier is the 3-Phase PFC solution that needs to be fully
exploited. Readymade Vienna Power Semi..................[:=> 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
Fuzzy Logic based fault detection in induction machines using Lab view, view , using, machines , induction, detection , fault, based , Logic, Fuzzy , three phase fault detector, a project on fault in induction motor , project reports for the topic fault detection of induction motor, online condition monitoring of 3 phase induction motor ,
ling of three-phase induction 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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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. Bridgeless SEPIC Rectifier conduction Losses “
nn. A Modified SEPIC Converter with Soft-Switching Feature fo..................[:=> 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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ION FOR DIFFERENT PARAMETERS
ii. STEPPER MOTOR SPEED CONTROLLING USING CELL PHONE
jj. MICROCONTROLLER BASED MEASUREMENT OF CURRENT, VOLTAGE, POWER FACTOR AND TEMPERATURE FOR INDUSTRIAL APPLICATIONS
kk. AUTOMATIC TEMPERATURE CONTROLLED FAN USING MICROCONTROLLER
ll. TRANSMISSION LINE MULTIPLE FAULTS DETECTION AND INDICATION TO EB
mm. EXPLOITATION OF PWM FOR DC MOTOR CONTROL
nn. REALIZATION OF PREPAID BILL MANAGEMENT SYSTEM AND TIMEOUT INTIMATION FOR ELECTRICITY BOARD
oo. INVOLUNTARY TEMPERATURE LEVEL SCRUTINIZING AND CONTROLLING SYSTEM FOR INDUSTRIAL BOILER
pp. INDUSTRTIAL PARAMETER MONI..................[:=> 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 :Thursday 29th of January 2015 06:02:18 AM
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d processes, thereby replacing human operators.AC power transmission is the transmission of electric power by alternating current. Usually transmission lines use three phase AC current or Single phase AC current..................[:=> 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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CONTROLLED DOOR LATCH OPENER WITH SECURITY DIALUP WITH CHANGEABLE TELEPHONE NUMBERS (BASED)

71. POWER GRID CONTROL THROUGH PC

72. i.V.R.S. SYSTEM FOR INDUSTRIAL CONTROL

73. RF CONTROL OF INDUCTION MOTORS AND OTHER INDUSTRIAL
74. LOADS

75. Microcontroller Based G.S.M. controlled Switch With Voice

76. Six Channel Petrochemical Fire Monitoring & Control Station

77. Based Token Number Display With Voice & Security

78. Home/Office Security System (Teleguard)

79. IBM PC HDD,FDD,PRINTER SIGNAL INDICATOR AND FAULT LOCATOR CARDS(SET OF THREE CARDS)

80. MINI LCD SCOPE

81...................[:=> 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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of an low voltage winding is usually determined in a preliminary design by adjusting the voltage / turn to get the number of l.v windg. Turn per phase Al an integer.
Tl.v = Tl.v = an integer
Et
The number of h.v. wndg per turn per phase is
Th.v = Vh.v .Tl.v
Vl.v
Note :- If the tapping are located in the middle part of an h.v. wndg, the no. of wndg. turn must be even to ensure the symmetry of winding. For a wndg. with tapping it is necessary to have a proper turn ratio or voltage ratio not only on the principal tapping but on the other taps us wel..................[:=> 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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te
2.http://www.sciencemag.org/cgi/reprint/162/3856/857.pdf
3.http://www.nss.org/settlement/ssp/library/1978DOESPS-InternationalAgreements(Christol).pdf..................[:=> Show Contents <=:]



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