Constant Voltage Constant Frequency Operation for a Self-Excited Induction Generator

Abstract

In this paper, genetic algorithm-based technique is proposed to estimate and analyze the steady-state performance of a self-excited induction generator (SEIG). The study reveals that the performance of the SEIG is greatly influenced by the operating speed, load, and excitation capacitance. This provides an opportunity for the proper handling of these parameters so as to obtain the required performance characteristics. In this paper, a new technique is proposed to identify these parameters to achieve constant voltage constant frequency operation for SEIG. Theoretical results as obtained have been compared with experimental results and found to be in close agreement.Index Terms-Genetic algorithm (GA), self-excited induction generator (SEIG), wind energy generation.

Induction machine at unity power factor with rotating power electronic converter

“…sum of ′ r and ′ rl ) while (5) gives the angle between the voltage drop across the rotor inductive impedance and the rotor current through it. This angle is constant at a particular slip as the rotor inductive reactance does not change at a constant speed.…”

Genetic Algorithm Based Performance Analysis of Self Excited Induction Generator

“…The crossover process uses the parents with best fitness, a binary coding is used to express weight's magnitudes, and single-point crossover method is used in our case. The 6th step is the mutation process with mutation probability of 0.05, finally, the new population is formed and procedures repeated until reaching the accuracy € < 0.001 [11][12][13].…”

Wind-driven SEIG supplying DC microgrid through a single-stage power converter

“…In such systems, squirrel-cage induction machines functioning as generators are being used due to their low cost, simple, robust construction and almost nil maintenance requirements [5][6][7][8][9][10][11][12]. This machine can be operated either as a grid-connected induction generator for supplying power to the grid or selfexcited induction generator (SEIG) for feeding power to the isolated loads.…”

“…A smoothing inductor is connected in between the output side of semiconverter and dc microgrid to have the continuous dc grid current. In the case of SEIG, the output voltage and frequency vary with the driving speed and load [5][6][7][8][9][10][11][12][13][14]. For the present system, this variable voltage and variable frequency (VVVF) output from SEIG is fed to the three-phase semi-converter.…”