The magnetizing characteristic in the air gap of the seig using Runge Kutta method and correction factor

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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 iqs, is very strong and the equation of this current is non power-invariant then, using take the stator current reference iqs refis (2/3) Ibase. The correction factor K4has done the magnetizing inductance Lmand also the output terminal voltage of SEIG more precision than before.

Original languageEnglish
Pages (from-to)404-411
Number of pages8
JournalJournal of Theoretical and Applied Information Technology
Volume72
Issue number3
Publication statusPublished - 1 Jan 2015

Keywords

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

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