Solid-State Control of a Grid Connected Induction Generator

Modelling, analysis and control of stand‐alone self‐excited induction generator‐pulse width modulation rectifier systems feeding constant DC voltage applications

“…6 shows the SEIG with excitation capacitance, feeding the DC load through the PWM rectifier. Abdel‐Halim [29] and Abdel‐Halim et al [30] have derived an abc‐dq model for the analysis of grid‐connected induction generators. This model has been adopted for SEIGs by Dhanasekaran et al [31].…”

Innovative Reactive Power Saving in Wind-driven Grid-connected Induction Generators Using a Delta-Star Stator Winding: Part II, Estimation of Annual Wh and VARh of the Delta-Star Generator and Comparison with Alternative Schemes

“…applied phase voltage is 1/ Î ã 3 times that of delta connection. So, the performance characteristics of the G en 2 were studied, as for G en 3 . The operating point at w hich the star sw itching is to be started was determined, using eq (10) of part-1, with P m rY = 0.446 p.u.…”

“…Table-4show s the performance values for G en2 also. It can now be concluded that, the VA R h G en 1 > VA R h G en 2 > VA R h G en3 . This trend can be ex pected, even with a different pattern of w ind speed, but the numerical values m ay vary.…”

Grid-Connected Induction Generators Using Delta-Star Switching of the Stator Winding with a Permanently Connected Capacitor

“…In the last two decades, wind energy electric conversion systems have been operating successfully in many countries and the power rating of individual wind turbine-generators has been steadily increasing and has now reached 5 MW. In such systems, conventionally, squirrel cage induction machines have been used [1][2][3][4][5][6][7] but in recent years variable speed WIND ENGINEERING VOLUME 36, NO. 2,2012 PP 219-232 doubly-fed slip-ring machines have been developed and installed to enhance the overall performance of the conversion system [8][9][10][11][12][13].…”