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Analysis of voltage regulator for a 3 - /spl Phi/ self-excited induction generator using current controlled voltage source inverter

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2 Author(s)
Jayaramaiah, G.V. ; Energy Syst. Eng., Indian Inst. of Technol., Mumbai, India ; Fernandas, B.G.

This paper presents the analysis of a voltage regulator for a 3-phase self-excited induction generator (SEIG) using a current controlled voltage source inverter (CC-VSI). The control scheme consists of two PI controllers and one hysteresis current controller, which are used to regulate the stator terminal voltage of the induction generator (IG). A mathematical model of a SEIG in synchronously rotating reference frame is used in order to simulate the performance of the generator with static VAr compensator. It has fast dynamic response for regulating the voltage when the SEIG subjected to a sudden application/removal of load. The voltage-regulating scheme is adaptive to changes in the load condition and hence it is possible to operate the SEIG at constant voltage from no load to full load. The proposed controller regulates the IG terminal voltage against varying rotor speed and changing load conditions. This scheme does not require computations and information regarding rotor speed for calculating the excitation current thereby minimizing the cost of the controller. Simulation results using Matlab / Simulink software show the satisfactory operation of an induction generator with the proposed control scheme.

Published in:

Power Electronics and Motion Control Conference, 2004. IPEMC 2004. The 4th International  (Volume:3 )

Date of Conference:

14-16 Aug. 2004