Conference Presentations by Renan Monteiro de Andrade
– The generation of a hydroelectric power plant is a nonlinear function of its storage and turbin... more – The generation of a hydroelectric power plant is a nonlinear function of its storage and turbined outflow. Nonlinear, mixed-integer or linear programming models have been proposed to approximate this function in the context of hydrothermal coordination, usually with one function for each plant. This paper proposes a new exact " Multi-plant hydro production function (MHPF) " , which depends on the storage and discharge of a given reservoir power plant and comprises not only its generation but also the power output to all subsequent run-of-the-river plants until the next reservoir. Based on this function we build a piecewise linear model that can be embedded in stochastic linear programs for optimal hydrothermal coordination. We illustrate the proposed MHPF approach for real sets of cascaded hydro plants of the Brazilian System.
Papers by Renan Monteiro de Andrade
2016 Power Systems Computation Conference (PSCC), 2016
The generation of a hydroelectric power plant is a nonlinear function of its storage and turbined... more The generation of a hydroelectric power plant is a nonlinear function of its storage and turbined outflow. Nonlinear, mixed-integer or linear programming models have been proposed to approximate this function in the context of hydrothermal coordination, usually with one function for each plant. This paper proposes a new exact “Multi-plant hydro production function (MHPF)”, which depends on the storage and discharge of a given reservoir power plant and comprises not only its generation but also the power output to all subsequent run-of-the-river plants until the next reservoir. Based on this function we build a piecewise linear model that can be embedded in stochastic linear programs for optimal hydrothermal coordination. We illustrate the proposed MHPF approach for real sets of cascaded hydro plants of the Brazilian System.
Apresenta-se um modelo agregado para a função de produção hidroelétrica, que condensa em uma únic... more Apresenta-se um modelo agregado para a função de produção hidroelétrica, que condensa em uma única função a geração em um conjunto composto por reservatórios de montante e diversas usinas a fio d´água a jusante em um trecho de cascata. Obtém-se uma expressão exata da geração desse conjunto de usinas a partir dos armazenamentos e defluências dos reservatórios de montante e realiza-se uma aproximação linear por partes dessa função. Essa estratégia permite reduzir a complexidade do problema de planejamento da operação hidrotérmica de médio/longo prazos, ao mesmo tempo em que se representam aspectos importantes da operação individualizada das usinas, sendo uma alternativa competitiva ao uso de reservatórios equivalentes de energia.
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Conference Presentations by Renan Monteiro de Andrade
Papers by Renan Monteiro de Andrade