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BRUSHLESS DC ELECTRIC MOTOR


Posted by: seminar class
Created at: Thursday 17th of March 2011 06:22:40 AM
Last Edited Or Replied at :Thursday 18th of August 2011 02:31:54 AM
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converting electricity into mechanical power than brushed DC motors. This improvement is largely due to the absence of electrical and friction losses due to brushes. The enhanced efficiency is greatest in the no-load and low-load region of the motor's performance curve. Under high mechanical loads, BLDC motors and high-quality brushed motors are comparable in efficiency.
AC induction motors require induction of magnetic field in the rotor by the rotating field of the stator; this results in the magnetic and electric fields being out of phase. The phase difference requires greater current and ..................[:=> Show Contents <=:]



SPEED CONTROL OF DC MOTOR USING PWM TECHNIQUE


Posted by: venki2210
Created at: Sunday 27th of November 2011 07:27:49 PM
Last Edited Or Replied at :Monday 20th of February 2012 05:07:22 AM
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PLEASE SEND ME THE REPORT WITH CKT DIAGRAMS TO M..................[:=> Show Contents <=:]



mathematicalmodelling of brushless DC motor


Posted by: jkarthickeyan
Created at: Thursday 22nd of April 2010 01:14:29 AM
Last Edited Or Replied at :Thursday 22nd of April 2010 01:14:29 AM
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hi frns

karthikeyan here. did any one doing proj on mathematical modelling of BLDC....

help me..................[:=> Show Contents <=:]



SPEED SENSORLESS SEPARATELY EXCITED DC MOTOR DRIVE WITH AN ADAPTIVE OBSERVER report


Posted by: project topics
Created at: Sunday 18th of April 2010 11:49:49 AM
Last Edited Or Replied at :Tuesday 05th of October 2010 04:31:53 AM
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wn as mechanical characteristic.
TORQUE-CURRENT CHARACTERISTICS:
When running on no-load, a small armature current flows to drive the machine against the friction and other losses in it. As the load is applied to the motor, and is increased the torque rises almost proportionally to the increase in the current. This is not quite true, because the flux has been assumed to be constant, whereas it decreases slightly owing to armature reaction .The effect of this is to cause the top of the curve connecting the torque and the line current to bend over as shown in fig.
Fig2.1
SPEED CURRENT CHARA..................[:=> Show Contents <=:]



An Adaptive Programming Model for Fault-Tolerant Distributed Computing for more htt


Posted by: maheshreddy589
Created at: Friday 26th of March 2010 01:28:39 PM
Last Edited Or Replied at :Tuesday 14th of February 2012 02:07:58 AM
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sir i want full documentation for this poject if any boby help me in this it is very essential for us........................[:=> Show Contents <=:]



pmdc motor


Posted by: chodekiran
Created at: Friday 05th of March 2010 12:25:10 AM
Last Edited Or Replied at :Friday 05th of March 2010 12:25:10 AM
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relat..................[:=> Show Contents <=:]



electrical engineering projects for college students


Posted by: electronics seminars
Created at: Friday 15th of January 2010 01:32:47 PM
Last Edited Or Replied at :Monday 05th of March 2012 09:14:51 AM
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tive Based on Inverter Controlled Induction Motor
b. Second Order Sliding Mode for Traction Control in Ride-by-Wire Sport Motorcycles
c. Indirect Matrix Converter Based on Investigations of Field-oriented control for Induction Motor
d. SVPWM Techniques and Applications in HTS PMSM Machines Control
e. A 24-pulse AC-DC converter employing a pulse doubling technique for vector controlled induction motor drives
f. Prediction-based ripple reduction in Direct Torque Control of an induction machine
g. DTC-SVM Scheme for Induction Motors Fed with a Three-level Inverter
h. Wound Rotor Ind..................[:=> Show Contents <=:]



Brushless Servomotor


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:16:47 PM
Last Edited Or Replied at :Thursday 07th of February 2013 06:16:51 AM
Servomotor , Brushless, report on servomotor , brushless servomotor seminar report, brushless dc servo motor project ,
high performance servo drive. The brushless servomotor is an ac motor, in all respects and is in fact called the ac servomotor. Combined with a dedicated control device, the performance of the brushless servomotor is found to be equal to the performance of the high performance dc servo motor. In dc motor when the current flows in the electrical conductor, after passing through the brushes and the commutator in the magnetic field generated by permanent magnets N and S, torque is generated. For getting a stable torque proportional to current, the line of magnetic force should intersect the dir..................[:=> Show Contents <=:]



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