Microprocessor-based voltage controller for wind-driven induction generators

Performance and Analysis of a Stand-Alone DC Power Supply Using Self-Excited Induction Generator with Shunt and Series Capacitors and Diode Rectifiers

“…Induction generators are being used in both, grid connected [1][2][3] and stand-alone [4][5][6][7][8][9][10][11][12][13][14][15][16][17] applications. In isolated systems, the terminal voltage of the generator undergoes considerable variation with the change in load and speed [4][5][6][7][8][9][10][11][12][13][14][15].…”

“…In isolated systems, the terminal voltage of the generator undergoes considerable variation with the change in load and speed [4][5][6][7][8][9][10][11][12][13][14][15]. The industrial utilization of such systems demands an inexpensive, reliable and efficient method to improve the voltage regulation.…”

“…The industrial utilization of such systems demands an inexpensive, reliable and efficient method to improve the voltage regulation. In cases, where load requires DC voltage, the available AC supply is rectified and so far the technique to control load voltage is through delay/extinction angle control of AC/DC converters [11][12][13][14]. Performances of both phase controlled [11,12] and force commutated [13,14] converters, when connected to the self-excited induction generators, have been reported.…”

“…In cases, where load requires DC voltage, the available AC supply is rectified and so far the technique to control load voltage is through delay/extinction angle control of AC/DC converters [11][12][13][14]. Performances of both phase controlled [11,12] and force commutated [13,14] converters, when connected to the self-excited induction generators, have been reported. However, in such systems, the need to continuously sense speed, voltage and stator current to generate gate/base drive pulses through a controller for keeping output voltage constant, makes the system expensive and complicated.…”

A simple wind driven self-excited induction generator with regulated output voltage

“…A thyristor controlled DC voltage regulator for wind driven induction generator is reported in [3]. An investigation was made by Studtmann [4] into the use of static PWM converter in stand-alone operation of induction generator.…”