FUZZY LOGIC BASED VOLTAGE CONTROL OF A SELF EXCITED INDUCTION GENERATOR DRIVEN BY A VARIABLE SPEED WIND TURBINE | ||||
| ERJ. Engineering Research Journal | ||||
| Article 3, Volume 31, Issue 2, April 2008, Page 129-139 PDF (1.08 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2008.69517 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| F. E. Abdel Kader; S. A. Deraz | ||||
| Elechicul Engineering DepurIment Faculty ofEngineering-Minoufiya Universify-Egypt | ||||
| Abstract | ||||
| This paper presents a novel fuzzy voltage controller for a stand-alone three-phase self-excited induction generator (SEIG) driven by a variable speed wind turbine. The generated voltage of the SEIG is regulated by adapting the value of excitation capacitance against wind speed and load variations using a fixed capacitor bank and a PWM current controlled voltage source inverter (CCVSI) with a single capacitor on its DC side. The proposed control scheme consists of two ky logic PI controllers and one hysteresis current controller (HCC). Fuzzy logic based voltage control of the SEIG helps to enhance its performance due to its non-linear adaptive gains, which are varied on-line as the system operating point changes. The need for adaptive regulating scheme comes !?om the fact that the wind turbine operates over a wide range of operating conditions and therefore the system is highly non-linear. A complete mathematical model of the system is developed in order to study its performance with the proposed controller. Simulation results using Matlab/Simulink software program demonstrate the effectiveness of the proposed controller in regulating the generated voltage of the SEIG against wind speed and load variations. | ||||
| Keywords | ||||
| Induction Generator; Wind turbine; Fuzzy logic control; Voltage control; modeling | ||||
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