LAPSE:2023.25255
Published Article
LAPSE:2023.25255
Feedback Control Strategy for Transient Stability Application
March 28, 2023
Power systems are subjected to a wide range of disturbances during daily operations. Severe disturbances, such as a loss of a large generator, a three-phase bolted fault on a generator bus, or a loss of a transmission line, can lead to the loss of synchronism of a generator or group of generators. The ability of a power system to maintain synchronism during the few seconds after being subjected to a severe disturbance is known as transient stability. Most of the modern methods of controlling transient stability involve special protection schemes or remedial action schemes. These special protection schemes sense predetermined system conditions and take corrective actions, such as generator tripping or generation re-dispatch, in real time to maintain transient stability. Another method is the use of a real-time feedback control system to modulate the output of an actuator in response to a signal. This paper provides a fundamental evaluation of the use of feedback control strategies to improve transient stability in a power system. An optimal feedback control strategy that modulates the real power injected and absorbed by distributed energy-storage devices is proposed. Its performance is evaluated on a four-machine power system and on a 34-machine reduced-order model of the Western North American Power System. The result shows that the feedback control strategy can increase the critical fault clearing time by 60%, thereby improving the transient stability of the power system.
Keywords
Energy Storage, power system control, power system stability, transient analysis, wide area measurements
Suggested Citation
Ojetola ST, Wold J, Trudnowski D. Feedback Control Strategy for Transient Stability Application. (2023). LAPSE:2023.25255
Author Affiliations
Ojetola ST: Sandia National Laboratories, Albuquerque, NM 87123, USA [ORCID]
Wold J: Schweitzer Engineering Laboratories, Butte, MT 59701, USA [ORCID]
Trudnowski D: Department of Electrical Engineering, Montana Technological University, Butte, MT 59701, USA [ORCID]
Journal Name
Energies
Volume
15
Issue
16
First Page
6016
Year
2022
Publication Date
2022-08-19
Published Version
ISSN
1996-1073
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Original Submission
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PII: en15166016, Publication Type: Journal Article
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LAPSE:2023.25255
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doi:10.3390/en15166016
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Mar 28, 2023
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