A Novel Universal Model Considering SAGE for MFD-Based Faulty Property Analysis Under RISC in Synchronous Generators

This article proposes a new rotor interturn short circuit (RISC) fault analysis model for the electromechanical property study in synchronous generators. The specific novelty of this lies two aspects: First, It considers that most generators exist static air-gap eccentricity (SAGE), so it analyzes RISC under normal and SAGE, making more versatile, second, takes into account not only degree, but also position, consequently is universal. By feeding number turns (denotes degree), angle between slots, where place position) detailed parameters generator model, developing tendency key magnetic flux density (MFD)-based can be conveniently predicted. advantages proposed primarily lie universality calculation speed. quickly evaluate operating conditions. phase current electromagnetic torque are selected as representatives electrical parameter mechanical parameter, respectively. Two-dimensional finite element experimental studies validate model.