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Quantitative Assessment for Commutation Security Based on Extinction Angle Trajectory
- Source :
- Journal of Modern Power Systems and Clean Energy, Vol 9, Iss 2, Pp 328-337 (2021)
- Publication Year :
- 2021
- Publisher :
- IEEE, 2021.
-
Abstract
- In order to reduce the risk of commutation failure (CF) in the AC/DC hybrid power system, the quantitative analysis on CF is required for on-line assessment and optimal control. This paper presents an accurate and reliable method to quantify the commutation security based on the trajectory due to the complexity of the high-voltage direct current (HVDC) model. Firstly, the characteristics of the extinction angle trajectory are analyzed under both commutation success and failure conditions. The commutation security margin index (CSMI) is then proposed for the HVDC systems. Moreover, a search strategy for parameter limits is put forward based on the sensitivity analysis of CSMI to accelerate the search speed with a guaranteed accuracy level. A modified IEEE 39-bus power system and an actual large-scale power system with 46 generators and 821 buses are utilized to verify the validity and robustness of the proposed index and strategy.
- Subjects :
- TK1001-1841
Renewable Energy, Sustainability and the Environment
Computer science
Energy Engineering and Power Technology
TJ807-830
Optimal control
commutation security margin
Renewable energy sources
Electric power system
Production of electric energy or power. Powerplants. Central stations
Control theory
Margin (machine learning)
Robustness (computer science)
Trajectory
security limit
high-voltage direct current (HVDC)
Sensitivity (control systems)
Commutation
Hybrid power
AC/DC hybrid power system
commutation failure (CF)
Subjects
Details
- Language :
- English
- ISSN :
- 21965420
- Volume :
- 9
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Journal of Modern Power Systems and Clean Energy
- Accession number :
- edsair.doi.dedup.....52a9292b46afd8c2f85273fb7e43da6c