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Solução do problema de fluxo de potência ótimo com restrição de segurança e controles discretos utilizando o método primal-dual barreira logarítmica
| Content Provider | Semantic Scholar |
|---|---|
| Author | Costa, Marina Teixeira Mendes De Souza |
| Copyright Year | 2016 |
| Abstract | The Optimum Power Flow problem determines the best operating condition of an electric power system. There are different classes of Optimal Power Flow problems according to the types of functions to be optimized, and the sets of controls and constraints used. Among them, the problem of Optimal Power Flow with Security Constraint is highlighted, which is an important tool for the Transmission System operators, both for operational planning and for energy pricing. Its objective is to minimize the operational costs of power generation taking into account the constraints arising from the operation of the system under a set of contingencies. It is formulated as a nonlinear, nonconvex large optimization problem, of continuous and discrete variables. In this work, the problem in relation to its formulation, computational difficulties and solution method is investigated. For a treatment of the problem closest to the reality, some controls such as discrete variables, i.e. the taps of the transformers, are used. These are treated by a method that penalizes the objective function when the discrete variables assume non-discrete values. Thus, the discrete nonlinear problem is transformed into a continuous problem and the Primal-Dual Logarithmic Barrier method is used in its resolution. Computational tests are performed with the optimal power flow problem with security constraint associated with the test system of IEEE 14 bars in three test stages. The obtained results and the realized comparisons prove the efficiency of the chosen resolution method. KEY-WORD: Optimal Power Flow, Optimal Power Flow with Security Constraint, Primal-Dual Logarithmic Barrier Method, Penalty Function, Nonlinear Optimization. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://repositorio.unesp.br/bitstream/handle/11449/148774/costa_mt_me_bauru.pdf?isAllowed=y&sequence=3 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
