Predispatch Linear System Solution With Preconditioned Iterative Methods
| Autor: | Silvia Méri Carvalho, Aurelio Ribeiro Leite de Oliveira, Mayk Vieira Coelho |
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| Rok vydání: | 2020 |
| Předmět: |
Mathematical optimization
021103 operations research Computer science Iterative method Preconditioner Linear system MathematicsofComputing_NUMERICALANALYSIS 0211 other engineering and technologies Energy Engineering and Power Technology 02 engineering and technology Incomplete Cholesky factorization Computer Science Applications Transmission (telecommunications) Flow (mathematics) Control and Systems Engineering 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Electrical and Electronic Engineering Gradient method Interior point method |
| Zdroj: | Journal of Control, Automation and Electrical Systems. 32:145-152 |
| ISSN: | 2195-3899 2195-3880 |
| DOI: | 10.1007/s40313-020-00659-9 |
| Popis: | Primal-dual interior point method is used to minimize the predispatch generation costs and transmission losses on short-term operation planning of hydrothermal power systems with previously scheduled maneuvers and ramp rate constraints. Despite the efficiency shown by interior point methods for very large-scale problems, they generally perform only reasonably when applied to multiple-dimensional flow problems, the new specialized interior point algorithm performed here, overcomes this disadvantage. This specialization uses the preconditioned conjugated gradient method with an incomplete Cholesky factorization to solve a linear system in each iteration of the algorithm. The preconditioner developed exploring the structure of the problem is fundamental to ensure the efficiency of the method. |
| Databáze: | OpenAIRE |
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