Inderscience Publishers

Performance analysis of a new configuration of three–phase self–excited induction generator feeding a single–phase load

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This paper presents a steady–state performance analysis for a new configuration of self–regulated self–excited three–phase squirrel cage induction generator feeding single phase loads. The proposed scheme provides the required reactive power for excitation, small voltage regulation, acceptable phase balance and large output power. Using an equivalent circuit model incorporated with the method of symmetrical components, the total impedance equation of the generator's model is derived. This non–linear equation is minimised to obtain the operating frequency and magnetising reactance. Based on the derived circuit model, the performance of the generator under different operating conditions is predicted. To confirm the validity of the proposed scheme, simulation results are compared with their corresponding test results.

Keywords: squirrel cage induction generators, self–excitation, self–regulation, performance evaluation, single–phase load, excitation, voltage regulation, phase balance, output power, circuit modelling, total impedance equation, operating frequency, magnetising reactance, simulation

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