Abstract
This study develops the principle of superimposed modal interactions (PSMI) for the second-order solutions of transient torques. The PSMI can explain the mechanism for transient torque amplification, and it can also be used to propose a method to identify transient torque amplification according to the initial condition for a transient. The studies are implemented on two systems respectively: the adapted IEEE First Benchmark Model and the practical series compensation system from a Chinese Power Grid. The numerical results show that the proposed method can predict transient torque amplification, and the superimposed modal interactions of several dominant modes result in transient torque amplification.
Published Version
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