- Title
- Effects of non-stationary forced oscillation on electromechanical modes
- Creator
- Surinkaew, Tossaporn; Emami, Kianoush; Shah, Rakibuzzaman; Mithulananthan, Nadarajah
- Date
- 2021
- Type
- Text; Conference paper
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/189085
- Identifier
- vital:17392
- Identifier
-
https://doi.org/10.1109/ISGTASIA49270.2021.9715268
- Identifier
- ISBN:9781665433396 (ISBN)
- Abstract
- The forced oscillation (FO) containing variable frequencies, known as non-stationary FO, has yet been well understood in power system engineers. This paper analyzes the effects of the non-stationary FO on electromechanical modes (EMs) in the range of 0.2 to 2.0 Hz. The non-stationary forced disturbance (FD) with such variable frequency bands is mathematically modeled. The injection of the non-stationary FD results in the non-stationary FO. A modified subspace-based state-space identification (so-called 4SID) method is applied to estimate the non-stationary frequencies and damping ratios of the EMs along with a moving window. Effects of the non-stationary FO on the EMs are compared to those of the conventional FO. Simulation results are verified in the future 14-machine Southeast Australian power system with converter controlled-based generations under various FO conditions. © 2021 IEEE
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Relation
- 2021 IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2021, Brisbane, 5-8 December 2021, 2021 IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2021
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- Copyright © 2021 IEEE
- Subject
- Converter controlled-based generation; External perturbation; Non-stationary forced oscillation; Small-signal stability
- Reviewed
- Funder
- Australian Government Research Training Program (RTP) Scholarship Central Queensland University (CQU), Australia.
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