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Interior point methods applied to the pre-dispatch problem considering security constraints

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Author(s):
Luciana Casacio
Total Authors: 1
Document type: Master's Dissertation
Press: Campinas, SP.
Institution: Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Elétrica e de Computação
Defense date:
Examining board members:
Christiano Lyra Filho; Adilson Elias Xavier; Paulo Augusto Valente Ferreira
Advisor: Aurelio Ribeiro Leite de Oliveira; Christiano Lyra Filho
Abstract

In this work, the primal-dual interior point methods are used to minimize the technical power generation and transmission losses of a hydrothermal power system. The resulting matrix structure is exploited, aiming an efficient implementation in terms of processing time, and robust, in the numerical point of view. Since the demand for energy varies throughout the day, power generation must follow the load change. In short term hydrothermal scheduling, the hydro generating units must satisfy daily targets, established by long-term scheduling models. This work considers that the hydro generating units and the branch must also operate in a state of "stable equilibrium", characterized in each time interval by security constraints to support some unpredictable demands or contingencies. The implementation of interior point methods to reduce losses satisfying these constraints is developed and compared with an implementation of the predispatch problem without such security constraints. The comparison is performed in terms of computational efficiency and solution quality. Case studies show that the inclusion of security constraints achieves stable predispatch solutions with low computational time and good numerical stability, leading to the prospect of this methodology application in predispatch Brazilian systems (AU)

FAPESP's process: 07/06153-2 - Interior Point Methods Applied to the Predispatch Problem with Security Constraints
Grantee:Luciana Casacio
Support Opportunities: Scholarships in Brazil - Master