Scholarship 07/04382-4 - Geração de energia, Custos e análise de custo - BV FAPESP
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Short-term generation dispatch problem in new energy markets context: two solution approaches

Grant number: 07/04382-4
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Start date until: October 01, 2007
End date until: September 30, 2008
Field of knowledge:Engineering - Electrical Engineering - Power Systems
Principal Investigator:Leonardo Nepomuceno
Grantee:Leandro Luiz Húngaro Costa
Host Institution: Faculdade de Engenharia (FE). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

The main purpose of this work is to propose a generation dispatch model for dominantly hydraulic systems suitable to represent auctions occurring in the context of Pool energy markets. Generally, in the dispatch models described in the literature only thermal generation agents are allowed to participate with bids in the Pool auctions. This procedure is adopted since a suitable representation of the cost structure for hydro generation units has not yet been proposed in the literature. In this work the hydraulic loss function is evaluated for the representation of such a cost structure. In the proposed dispatch model, thermal as well as hydraulic generation units are allowed to participate with bids in the Pool auctions. Two solution approaches for solving the proposed model are evaluated and compared: the Interior Point Methods (IP) and Genetic Algorithms (GA). The IP methods have been extensively used for solving large scale dispatch problems and the GA approaches are generally used to cope with problems such as discontinuity and non differentiability in the generation dispatch problem.

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