### Abstract

The Self Excitated Induction Generator (SEIG) is very popular now as a generated alternating power. In this research the induction machine is approached in the physically and mathematically approximated which then transformed from three-phase frame abc to two-axis frame dq using the Park and Clark transformation. Based on the reactive power demand and capacitor mounted on the stator of the induction machine then do the physical and mathematical approach of the system to obtain a state space model. Under known relationships, magnetization reactance and magnetizing current is not linear, so do mathematical approach to the magnetization reactance and magnetization currents characteristic curve to obtain the magnetic reactance equation used in the calculation. Obtained state space model and the magnetic reactance equation is simulated by using Runge Kutta method of fourth order in the exponent equation with correction factor. The influence of the stator current in q axis i_{qs}, is very strong and the equation of this current is non power-invariant then, using take the stator current reference i_{qs}
^{ref}is (2/3) I_{base}. The correction factor K_{4}has done the magnetizing inductance L_{m}and also the output terminal voltage of SEIG more precision than before.

Original language | English |
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Pages (from-to) | 404-411 |

Number of pages | 8 |

Journal | Journal of Theoretical and Applied Information Technology |

Volume | 72 |

Issue number | 3 |

Publication status | Published - 1 Jan 2015 |

### Keywords

- Correction factor
- Dq0 transformation
- Induction machine
- Magnetization characteristic of induction machine
- Runge Kutta.Method
- Self excitated induction generator
- State space