Experimental Verification of Short-Circuit Detection and Thyristor-Based Circuit Shut-Off in Permanent Magnet Synchronous Generators

High-output permanent magnet-type synchronous generators are used in aircraft electrification. However, these generators are at risk of overcurrents leading to dielectric breakdown, short circuits, and ignition. This paper proposes a short-circuit detection method and reports its usefulness in 20-kW system experiments.