Out-of-step detection using energy equilibrium criterion in time domain
Article
Paudyal, S, Gokaraju, R, Sachdev, MS et al. (2009). Out-of-step detection using energy equilibrium criterion in time domain
. 37(7), 714-739. 10.1080/15325000902762208
Paudyal, S, Gokaraju, R, Sachdev, MS et al. (2009). Out-of-step detection using energy equilibrium criterion in time domain
. 37(7), 714-739. 10.1080/15325000902762208
This article introduces a new algorithm to detect the out-of-step condition in a power system based on energy equilibrium criterion in the time domain. The proposed energy equilibrium criterion is developed using the concept of equal area criterion in the power-angle domain, and it eliminates the numerical computations required to find the critical clearing time to detect the out-of-step condition. The proposed algorithm detects the out-of-step condition based on the real-time transient energy information available from the local substations. The effectiveness of the proposed algorithm is tested on a single-machine infinite-bus system, a two-machine infinite-bus system, and a three-machine infinite-bus system. The performance of the proposed algorithm is compared with an existing concentric rectangle scheme. The simulation results show that the proposed algorithm can be applied to larger systems and is faster compared to the concentric rectangle scheme.
