A critical review on the self-excitation process and steady state analysis of an SEIG driven by wind turbine

Rishikesh Choudhary and R.K. Saket

Renewable and Sustainable Energy Reviews, 2015, vol. 47, issue C, 344-353

Abstract: This paper presents a critical review on the self-excitation process and steady state analysis of a self-excited induction generator driven by the wind turbine. The physics of self-excitation is crucial for the interpretation of the voltage build-up process of self-excited induction generators (SEIGs). During the initial phase of build-up the machine behaves as if it be a synchronous machine with weak permanent magnet in the form of remnant magnetization. In this paper the MMF approach as well as the synchronous resonance approach has been proposed to know the fact that how the machine relinquishes the initial synchronous mode and enters into the final asynchronous mode. The process of self-excitation is initiated by the resonating interaction between the terminal capacitor and machine׳s magnetizing reactance. The steady state analysis has been reviewed and proposed based on input/output impedance method to find the steady state reactive VAR need of the SEIG. The minimum and maximum critical capacitance has been evaluated theoretically. Finally the value of critical speed and critical load impedance has been evaluated.

Keywords: Synchronous resonance; Synchronous mode; Asynchronous mode; Reactive-VAR injection; Eigenvalue approach; Static bifurcation; Critical capacitance (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1016/j.rser.2015.03.043

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