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INDUCTION GENERATOR FOR WIND POWER GENERATION


Posted by: projectsofme
Created at: Friday 01st of October 2010 03:33:16 AM
Last Edited Or Replied at :Monday 21st of March 2011 06:13:24 AM
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f producing torque.
Large scale wind power projects are an attractive alternative to conventional capacity expansion.
In the present scenario , most wind turbine manufacturers now equip power generating units by induction generators.
They are operated either at fixed speed or variable speed.
Generators driven by fixed speed turbines can directly be connected to grid.
Variable speed generators need a power electronic converter interface for interconnection with the grid.
Variable speed generation is preferred over fixed speed generation.


HISTORY

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doubly fed induction motor full report


Posted by: project report tiger
Created at: Saturday 20th of February 2010 09:40:13 PM
Last Edited Or Replied at :Saturday 20th of February 2010 09:40:13 PM
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cy and less cost but instability is more.

WORKING

Field can be from rotor or stator or from both.
Both Active Power (for torque) and Reactive Power (for Flux) has to be fed to ROTOR.
Multi-phase supply with frequency f given to stator.

CONTROL

Frequency converter converts power from supply frequency to slip frequency.
VECTOR CONTROL

ADVANTAGES

Theoretically system cost is half of other machines with same rating.
HIGHER efficiency due to less LOSS.
Rotor core is effectively utilized hence Power density is large.
Active & Reactive Power to ..................[:=> Show Contents <=:]



Control Dynamics of a Doubly Fed Induction Generator Under Sub- and Super-Synchronous


Posted by: project report helper
Created at: Thursday 30th of September 2010 07:48:26 AM
Last Edited Or Replied at :Thursday 30th of September 2010 07:48:26 AM
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and converters action under sub- and super-synchronous modes of operation and during the transition of these two modes. This paper investigates the control dynamics of a DFIG based variable speed wind turbine during two modes of operation and subsequent transition period with a battery storage. This paper is organized as follows: In section II, system configuration is presented. The model of the turbine-generator system is given in section III. In section IV, Operation and control issues in sub- and super-synchronous modes are discussed. Simulation and discussion are given in section V. Final..................[:=> Show Contents <=:]



enhaced performance of doubly fed wind power induction generator


Posted by: jaspreet_17august@yahoo.com
Created at: Thursday 26th of August 2010 01:01:07 PM
Last Edited Or Replied at :Thursday 26th of August 2010 01:01:07 PM
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hello,

please pro..................[:=> Show Contents <=:]



On-Line Detection Of Shorts In Fields Of Turbine Generator Rotor


Posted by: radhikarg
Created at: Wednesday 10th of March 2010 09:33:04 PM
Last Edited Or Replied at :Monday 27th of September 2010 04:29:41 AM
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[size=me..................[:=> Show Contents <=:]



doubly fed induction motor full report


Posted by: project report tiger
Created at: Saturday 20th of February 2010 09:40:13 PM
Last Edited Or Replied at :Saturday 20th of February 2010 09:40:13 PM
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ACHINE
Induction machines are of different types and one of the type in particular are Singly Fed and Doubly Fed.
SINGLY FED INDUCTION MACHINE
1. Only ONE winding active in ENERGY conversion Process
2. Can have speed around Synchronous Speed.

DOUBLY FED INDUCTION MACHINE

TWO windings participate in ENERGY conversion Process.
Can work in DOUBLE synchronous speed for constant torque.
Similar to Synchronous Machine but in synchronous machine only one winding participate in energy conversion
DFIM is to operate in Narrow SPEED ranges

CONSTRUCTION

Two types-
1...................[:=> Show Contents <=:]



On-Line Detection Of Shorts In Fields Of Turbine Generator Rotor


Posted by: ajetivar
Created at: Monday 14th of December 2009 09:14:20 AM
Last Edited Or Replied at :Saturday 09th of October 2010 05:18:28 AM
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hi.....plz post more information regarding the above mentioned topic.........................[:=> Show Contents <=:]



ENHANCED PERFORMANCE OF A DOUBLY FED WIND-POWER INDUCTION GENERATOR AT WIND-


Posted by: Electrical Fan
Created at: Wednesday 02nd of September 2009 06:23:44 PM
Last Edited Or Replied at :Wednesday 02nd of September 2009 06:23:44 PM
WIND , GENERATOR, INDUCTION , WIND POWER, DOUBLY , PERFORMANCE, ENHANCED ,
minimum losses. Moreover, this methodology ensures a unity power factor flow at
the generator terminals. Reasonable values for the dc link voltage and converter
ratings are investigated. A comprehensive ..................[:=> Show Contents <=:]



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