A. Petersson, “Analysis, Modeling and Control of Doubly-Fed Induction Generators for Wind Turbines” Ph.D. Thesis, Division of Electric Power Engineering, Department of Energy and Environment, Chalmers University of Technology, Goteborg, 2005.

has been cited by the following article:

• TITLE: Steady State Analysis of a Doubly Fed Induction Generator

  AUTHORS: Ahmad M. Alkandari, S. A. Soliman, Mansour H. Abdel-Rahman

  KEYWORDS: Asynchronous Operation, Double Feed Induction Generator (DFIG), Wind Power

  JOURNAL NAME: Energy and Power Engineering, Vol.3 No.4, September 27, 2011

  ABSTRACT: In this paper, we present the steady state analysis of a double-fed induction generator (DFIG) adopted for wind power generation. The three-phase induction machine connected to the network, to work as a generator for wind farms, is excited on the rotor circuit by a slip-frequency current injected to the rotor, from an exciter mounted on the same shaft of the machine. The resulting rotating magnetic field rotates at synchronous speed; as such the generated power has a constant frequency independent of the shaft speed. Effects of the excitation voltage magnitude and phase angle on the active and reactive power are studied, when the machine runs at constant speed. It has been shown that by controlling the excitation voltage magnitude and phase angle would control the mode of operation of the machine; motor mode or generator mode. Furthermore, the effects of the shaft speed on the active and reactive power at constant excitation voltage magnitude and constant phase angle are also investigated.