The performance of a stand-alone permanent-magnet induction generator (PMIG) with single-phase output is analyzed using the method of symmetrical components and is compared to that of the same-sized conventional induction generator (IG). Experimental results conducted on a 2.2-kW testing machine are also provided to justify the theoretical analysis. Calculation and experimental results show that containing a permanent-magnet (PM) rotor generates electric power without fail and contributes to the improvement of efficiency and frequency variation.
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