- Title
- Evaluating resiliency of electric power generators against earthquake to maintain synchronism
- Creator
- Sayarshad, Hamid R.; Sabarshad, Omid; Amjady, Nima
- Date
- 2022
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/191306
- Identifier
- vital:17764
- Identifier
- 10.1016/j.epsr.2022.108127
- Identifier
- ISSN:0378-7796
- Abstract
- •A new dynamic generator resiliency model against earthquake is presented.•Nonlinear and time-variant behavior of earthquake disturbance is modeled.•Energy transfer of earthquake to mechanical input power of generator is modeled.•Synchronism status of generators impacted by an earthquake is determined.•The proposed model is tested using real-world data. Natural disasters, such as earthquakes, can cause significant disruptions in power systems, such as loss of generations and loads. To evaluate the behavior of a generator to remain in synchronism, subjected to the large disturbance of an earthquake, we propose a dynamic generator resiliency model. The proposed approach models the effects of earthquake energy transfer to a generator considering the time-variant behavior of earthquake disturbance. In addition, the proposed model analyzes the transient behavior of generators impacted by an earthquake considering earthquake ground acceleration and generators’ dynamic characteristics. Using this model, we can determine synchronism status of impacted generators and transient stability status of a power system in response to an earthquake. The proposed approach is tested using real-world data including the data of a real earthquake occurred on a real power plant. The obtained results illustrate the effectiveness of the proposed model to correctly predict the impact of an earthquake on a power plant, and to determine the effects of earthquake magnitude and generator robustness (in terms of generator inertia and damping torque) on the response of a generator to an earthquake.
- Publisher
- Elsevier B.V
- Relation
- Electric power systems research Vol. 210, no. (2022), p. 108127
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Subject
- Analysis; Earthquake; Earthquakes; Electric power systems; Electric power-plants; Electrical engineering; Evaluation; Generator; Power plants; Power system; Seismology; Synchronism; Transient behavior
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