Changes
/* Sample Analysis */
A sample of 139 patents from the search are analysed based on the taxonomy.
Provided a link below for sample spread sheet analysis for doubly-fed induction generators.<br>
* [[Media:Doublyfed_induction_generator1.xls| Sample analysis on Doubly-Fed Induction Generator-Patent Literature]]<br>
===Article Anlysis===
{| border="2" cellspacing="0" cellpadding="5" width="100%"
| style="background-color:#83caff"| <center>'''S No.'''</center>
| style="background-color:#83caff"| <center>'''Title '''</center>
| style="background-color:#83caff"| <center>'''Publication Year'''</center>
| style="background-color:#83caff"| <center>'''Journal / Conference'''</center>
| style="background-color:#83caff"| <center>'''Dolcera Summary'''</center>
|-
| style="background-color:#83caff"| <center>'''1'''</center>
| style="background-color:#ffffff"| [http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=1649950&queryText=Application+of+Matrix+Converter+for+Variable+Speed+Wind+Turbine+Driving+an+Doubly+Fed+Induction+Generator&openedRefinements=*&searchField=Search+All Application of Matrix Converter for Variable Speed Wind Turbine Driving an Doubly Fed Induction Generator]
| style="background-color:#ffffff"| <center>2006-May-23</center>
| Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006.
| A matrix converter is replaced with back to back converter in a variable speed wind turbine using doubly fed induction generator. Stable operation is achieved by stator flux oriented control techinque and the sytem opertaed in both sub and super synchronous modes, achieved good results.
|-
| style="background-color:#83caff"| <center>'''2'''</center>
| style="background-color:#ffffff"| [http://docs.google.com/viewer?a=v&q=cache:HqaFsMBhchcJ:iris.elf.stuba.sk/JEEEC/data/pdf/3_108-8.pdf+A+TORQUE+TRACKING+CONTROL+ALGORITHM+FOR+DOUBLY–FED+INDUCTION+GENERATOR&hl=enπd=bl&srcid=ADGEESgbHXoAbKe4O7b5DnykDc7h_LaHwCMIhkVrGX_whx4iUuE4Mc-3Rfq1DyW_h A Torque Tracking Control algorithm for Doubly–fed Induction Generator]
| style="background-color:#ffffff"| <center>2008-Jan-01</center>
| Journal of ELECTRICAL ENGINEERING
| Proposed a torque tracking control algorithm for Doubly fed induction generator using PI controllers. It is achieved by controlling the rotor currents and using a stator voltage vector reference frame.
|-
| style="background-color:#83caff"| <center>'''3'''</center>
| style="background-color:#ffffff"| [http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=4651578&queryText=Fault+Ride+Through+Capability+Improvement+Of+Wind+Farms+Usind+Doubly+Fed+Induciton+Generator&openedRefinements=*&searchField=Search+All Fault Ride Through Capability Improvement Of Wind Farms Using Doubly Fed Induciton Generator]
| <center>2008-Sep-04</center>
| Universities Power Engineering Conference, 2008. UPEC 2008. 43rd International
| An active diode bridge crowbar switch presented to improve fault ride through capability of DIFG. Showed different parameters related to crowbar such a crowbar resistance, power loss, temparature and time delay for deactivation during fault.
|-
| style="background-color:#83caff"| <center>'''4'''</center>
| style="background-color:#ffffff"| [http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=4778305&queryText=Optimal+Power+Control+Strategy+of+Maximizing+Wind+Energy+Tracking+and+Conversion+for+VSCF+Doubly+Fed+Induction+Generator+System&openedRefinements=*&searchField=Search+Al Optimal Power Control Strategy of Maximizing Wind Energy Tracking and Conversion for VSCF Doubly Fed Induction Generator System]
| <center>2006-Aug-14</center>
| Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
| Proposed a new optimal control strategy of maximum wind power extraction stratagies and testified by simulation. The control algorithm also used to minimize the losses in the generator. The dual passage excitation control strategy is applied to decouple the active and reactive powers. With this control system, the simulation results shows the good robustness and high generator efficiency is achieved.
|-
| style="background-color:#83caff"| <center>'''5'''</center>
| style="background-color:#ffffff"| [http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=1709031&queryText=Study+on+the+Control+of+DFIG+and+Its+Responses+to+Grid+Disturbances&openedRefinements=*&searchField=Search+All Study on the Control of DFIG andIts Responses to Grid Disturbances]
| <center>2006-Jan-01</center>
| Power Engineering Society General Meeting, 2006. IEEE
| Presented dynamic model of the DFIG, including mechanical model, generator model, and PWM voltage source coverters. Vector control strategies adapted for both the RSC and GSC to control speed and reactive power independently. controlling desigining methods, such as pole-placement method and the internal model control are used. Matlab/Simulink is used for simulation.
|}
* [[Media:Doublyfed_induction_generators1.xls| Sample analysis on Doubly-Fed Induction Generator-Non Patent Literature]]
