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High power applications require Multi-phase induction machines, considered viable contenders to the three phase machines operating as generator. An endeavor is made to develop a dynamic model of seven-phase induction generator and explore the generator functionality at no-load and different loading conditions. This paper analyzes the performance of seven-phase induction machine for various operating condition. The simulation model is developed using Matlab/Simulink. The seven phase generated voltage, current and torque are presented. The generator functionality is examined for different speeds and varying excitation capacitances. [ABSTRACT FROM AUTHOR]

Abstract: This paper analyses the electrodynamic braking (EDB) performance of a grid connected wind energy conversion system, during a grid loss. A dual pole induction generator driven by a fixed speed wind turbine is considered for the present study. The modeling of the wind turbine-induction generator unit, with the excitation capacitor C and braking resistor R, at the generator terminals is presented. Through simulation, the steady state as well as the dynamic performance of the system is studied for different R–C combinations. The experimental results on a 1.5kW induction machine confirm the feasibility and effectiveness of the EDB. [Copyright &y& Elsevier]