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Reactive power planning under conditional-value-at-risk assessment using chance-constrained optimisation.
- Source :
-
IET Generation, Transmission & Distribution (Wiley-Blackwell) . 2015, Vol. 9 Issue 3, p231-240. 10p. 1 Diagram, 5 Charts, 2 Graphs. - Publication Year :
- 2015
-
Abstract
- This study presents a risk-assessment approach to the reactive power planning problem. Chance-constrained programming is used to model the random equivalent availability of existing reactive power sources for a given confidence level. Load shedding because of random equivalent availability of those reactive power sources is implemented through conditional-value-at-risk. Tap settings of under-load tap-changing transformers are considered as integer variables. Active and reactive demands are considered as probability distribution functions. The proposed mathematical formulation is a two-stage stochastic, multi-period mixed-integer convex model. The tradeoff between risk mitigation and investment cost minimisation is analysed. The proposed methodology is applied to the CIGRE-32 electric power system, using the optimisation solver CPLEX in AMPL. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17518687
- Volume :
- 9
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- IET Generation, Transmission & Distribution (Wiley-Blackwell)
- Publication Type :
- Academic Journal
- Accession number :
- 101102315
- Full Text :
- https://doi.org/10.1049/iet-gtd.2014.0224