Equivalent circuit improvement method for induction motor efficiency

Abstract

The parameters of the equivalent Г-circuit, which is proposed for this improvement method, may be derived by data from the no-load test and locked-rotor test at reduced frequency, but direct calculations, i.e. simpler than parameters of the conventional T -circuit. And as for the simpler Г-circuit, the operating characteristics (losses, output power, efficiency and power factor) are calculated with no loss of accuracy. The accuracy of the proposed procedure was verified on the basis of results of comparative calculations for motor given in the literature.

Power Management of Islanded Self-Excited Induction Generator Reinforced by Energy Storage Systems

“…SEIG appears to be the right candidate to generate electric power for remote area applications [7][8][9][10][11][12][13][14]. It is robust and it can operate in a self-excited mode using only the input mechanical power from the rotating wind turbine.…”