A simple method for the steady state performances of self-excited induction generators

Abstract

Recently, the self-excited induction generators (SEIG) have been widely employed to operate as wind-turbine generators of an isolated power system. This paper proposes a simple method for the steady-state performance characteristics of a SEIG. Unlike the previous method, the proposed method avoids the tedious and erroneous manual work of segregating the real and imaginary components of the complex equation of the model. In this method, the model is formulated in a simple way and then solved using a numerical MATLAB function "fzero". The effectiveness of this method has been confirmed by comparing on a 0.8-kW induction generator the computed results obtained by the proposed method to those obtained by classical methods.

Self excitation in dual stator winding induction generator for renewable energy generation

“…Resolution of (7) leads to find the values of frequency e w and magnetizing inductance m L for a given excitation capacitor, speed, and electrical passive load, [4][5][6][7][8][9][10][11]. At note "A" in Fig.2 …”

“…Using the simple method developed by [5], we can predict the necessary parameters to evaluate the performance characteristics of the dual stator SEIG.…”

“…Within a loop, using a numerical MATLAB function "fzero" which will determine a frequency F and Xm. The number of iterations is limited by the maximum magnetizing inductance Lm (max) [5]. 4.…”

“…Multiphase drives system possess several advantages over conventional three-phase drives, such as reducing the amplitude and increasing the frequency of the torque pulsation, reducing the rotor harmonic currents, reducing the current per phase without increasing the voltage per phase, lowering the dc-link current harmonics, power segmentation and high reliability [1][2][3][4][5][6][7]. For this reason, multiphase induction machine drives are mainly related to the high-power and/or high-current applications such as for example in electric ship propulsion, in locomotive traction, in aerospace applications and electric/hybrid vehicles [15][16][17][18][19][20][21].…”

Performance Analysis of Single-Phase Electrical Machine for Military Applications

“…Similarly, the induction generator (IG) is also a better choice for portable generators [17] where weight is a major concern. Ruggedness, simple design, robustness, lower cost, and reduced maintenance are the most important benefits of IG.…”