Optimal design of a self-excited capacitor in a dual-stator winding induction generator

Dual Stator Winding Induction Machine: Problems, Progress, and Future Scope

“…The value of capacitance on the power winding side is chosen such that where, I CA is the SER current at base speed and maximum loading condition and I CB is the SER current at maximum speed and minimum loading condition. The second approach is based on efficiency optimization [25]. The relationship between capacitance value and stator copper loss of both windings plus the filter inductor losses is determined.…”

“…The flux density of individual windings is chosen according to (25), considering the individual flux linkages to have zero spatial phase difference [64]. 1 = 0.819 , 2 = 0.543 (25) where, B g1 is the peak air-gap flux produced when only winding with lower pole configuration is excited, B g2 is the corresponding value for winding with higher number of poles, B g is the air-gap flux produced by an equivalent single stator winding machine. Since the magnetic coupling between the two windings is eliminated, the DSWIM under consideration behaves as two independent machines coupled through the same shaft.…”

Grid-Connected Dual Stator-Winding Induction Generator Wind Power System for Wide Wind Speed Ranges

“…The favorable capability of the DWIG to operate in flux-weakening regions broadens the operational speed range of this generator. Given that the ac capacitor bank on the power winding provides reactive power and reduces the inductance of the rectifier load, the bank can be optimized to maintain the control-winding current at a minimum level and thereby decrease the capacity of the SEC [8], [10], [13]. Thus, DWIG wind power systems are excellent alternatives to conventional wind turbines.…”