Otimização multiobjetivo do despacho térmico para sistemas integrados de energia considerando diferentes patamares da carga complementar

Detalhes bibliográficos
Autor(a) principal: Hammerschmitt, Bruno Knevitz
Data de Publicação: 2022
Tipo de documento: Tese
Idioma: por
Título da fonte: Manancial - Repositório Digital da UFSM
dARK ID: ark:/26339/0013000016fcc
Texto Completo: http://repositorio.ufsm.br/handle/1/27240
Resumo: The complexity of integrated energy systems, with centralized load and generation, generally results from their operation, coordination and planning. In addition, an electric system with multiple energy generation sources requires some planning for each source dispatch, in order to protect themselves with energy reserves and keep the system with uninterrupted supply and reliable within security limits. Aiming decarbonize the energy matrix most electrical systems are undergoing a transition with renewable resources and at full expansion. However, these technologies have the characteristics of being intermittent and stochastic. In view of this, energy sources with a controllable power generation, generally coming from energy resources of a fossil nature, become necessary to accommodate the generation inconstancy from intermittent renewable sources, also to complement the load demand requests due to the unavailability of other energy sources. For this, multi-energy systems for electric energy generation need tools for the dispatch optimization of controllable energy sources, as well as for the systems evaluation and adequacy in face of the seasonal variations of the energy generation and the load demand. Therefore, this work aims to develop a multi-objective optimization model for short-term thermal dispatch, following the capacity constraints of the Thermal Power Plants (TPPs) and based on the minimum cost, by the model Non-dominated Sorting Genetic Algorithm-III (NSGA-III). To achieve the proposed objective, it was necessary to adapt the system with the adjustment of the base energy generation, coming from renewable energies. For this, a method of adjusting the base energy data was developed to reduce the complementary energy climb, restricting to the flexible thermal power limit. Then, the complementation by thermal energy was carried out, applying the NSGA-III model to obtain the best arrangements of the thermal dispatch, considering the levels of base, intermediate and peak complementary load, observing the capacity limits and at minimum cost. Additionally, an upper limit of reserve energy was proposed, as a precaution for emergencies. With this, from the lowest cost arrangement, the thermal dispatch was performed considering the fully meet of the system complementary load. The results obtained reduced the TPPs idleness, maximized the thermal dispatch of the renewable energy sources, and still made viable the system operational flexibility. Thus, this work allows the thermal dispatch optimization in the short-term, and can also help in planning studies of multi-energy systems.
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spelling Otimização multiobjetivo do despacho térmico para sistemas integrados de energia considerando diferentes patamares da carga complementarMulti-objective optimization of thermal dispatch for integrated energy systems considering different complementary load levelsOtimização multiojetivo do despacho térmicoPatamares de carga complementarDespacho térmico de curto prazoDespacho econômicoEnergia renovávelMulti-objective optimization of thermal dispatchComplementary load levelsShort-term thermal dispatchEconomic dispatchRenewable energyCNPQ::ENGENHARIAS::ENGENHARIA ELETRICAThe complexity of integrated energy systems, with centralized load and generation, generally results from their operation, coordination and planning. In addition, an electric system with multiple energy generation sources requires some planning for each source dispatch, in order to protect themselves with energy reserves and keep the system with uninterrupted supply and reliable within security limits. Aiming decarbonize the energy matrix most electrical systems are undergoing a transition with renewable resources and at full expansion. However, these technologies have the characteristics of being intermittent and stochastic. In view of this, energy sources with a controllable power generation, generally coming from energy resources of a fossil nature, become necessary to accommodate the generation inconstancy from intermittent renewable sources, also to complement the load demand requests due to the unavailability of other energy sources. For this, multi-energy systems for electric energy generation need tools for the dispatch optimization of controllable energy sources, as well as for the systems evaluation and adequacy in face of the seasonal variations of the energy generation and the load demand. Therefore, this work aims to develop a multi-objective optimization model for short-term thermal dispatch, following the capacity constraints of the Thermal Power Plants (TPPs) and based on the minimum cost, by the model Non-dominated Sorting Genetic Algorithm-III (NSGA-III). To achieve the proposed objective, it was necessary to adapt the system with the adjustment of the base energy generation, coming from renewable energies. For this, a method of adjusting the base energy data was developed to reduce the complementary energy climb, restricting to the flexible thermal power limit. Then, the complementation by thermal energy was carried out, applying the NSGA-III model to obtain the best arrangements of the thermal dispatch, considering the levels of base, intermediate and peak complementary load, observing the capacity limits and at minimum cost. Additionally, an upper limit of reserve energy was proposed, as a precaution for emergencies. With this, from the lowest cost arrangement, the thermal dispatch was performed considering the fully meet of the system complementary load. The results obtained reduced the TPPs idleness, maximized the thermal dispatch of the renewable energy sources, and still made viable the system operational flexibility. Thus, this work allows the thermal dispatch optimization in the short-term, and can also help in planning studies of multi-energy systems.Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqCoordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESA complexidade dos sistemas integrados de energia, com carga e geração centralizada, geralmente são resultantes de sua operação, coordenação e do planejamento. Além disso, os sistemas de energia com diferentes fontes para a geração necessitam de estimativas do quanto podem usufruir de cada fonte de energia, para se precaver com reservas e manter o sistema em operação ininterrupta, confiável e dentro dos limites de segurança. No entanto, com a necessidade de descarbonizar os sistemas de energia no que diz respeito a matriz elétrica, há a transição onde os recursos energéticos de base renovável estão em plena expansão, mas que na sua grande maioria possuem as características de serem intermitentes e estocásticos. Diante disto, as fontes de energias complementares com geração controlável, geralmente provindo de recursos energéticos de natureza fóssil, tornam-se necessárias para acomodar as inconstâncias de geração de energia das fontes renováveis intermitentes, também para complementar as solicitações da demanda de carga perante indisponibilidade das demais fontes de energia. Para isso, os sistemas com diferentes fontes para geração de energia elétrica necessitam de ferramentas para a otimização do despacho das fontes de energia controláveis, assim como para a avaliação e adequação dos sistemas frente as variações sazonais da geração de energia e da demanda de carga. Portanto, este trabalho tem por objetivo desenvolver um modelo de otimização multiobjetivo do despacho térmico de curto prazo, seguindo pelas restrições de capacidade das Usinas Termelétricas (UTEs) e com base no custo mínimo, pelo modelo Non-dominated Sorting Genetic Algorithm-III (NSGA-III). Para alcançar o objetivo proposto, foi necessário realizar a adequação do sistema com o ajuste da geração de energia de base, oriunda de energias renováveis. Para isso, foi desenvolvido um método de ajuste dos dados de energia de base para reduzir as rampas de energia complementar, restringindo-se ao limite de potência térmica flexível. Em seguida foi realizado a complementação por energia térmica, aplicando o modelo NSGA-III para obtenção dos melhores arranjos do despacho térmico, considerando os patamares de carga complementar de base, intermediária e de ponta, observando os limites de capacidade e o custo mínimo. Adicionalmente, foi proposto um limite superior de energia reserva, como forma de precaução para emergências. Com isso, a partir do arranjo de menor custo, foi realizado o escalonamento do despacho térmico, considerando o atendimento integral da carga complementar do sistema. Os resultados obtidos reduziram a ociosidade das UTEs, maximizaram o despacho térmico das fontes renováveis, e ainda viabilizam a flexibilidade operativa do sistema. Assim, este trabalho possibilita a otimização do despacho térmico no curto prazo, e pode também auxiliar nos estudos de planejamento dos sistemas de multienergia.Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de TecnologiaAbaide, Alzenira da Rosahttp://lattes.cnpq.br/2427825596072142Knak Neto, NelsonGarcia, Vinícius JacquesSantos, Moises MachadoPereira, Paulo Ricardo da SilvaHammerschmitt, Bruno Knevitz2022-12-05T14:15:24Z2022-12-05T14:15:24Z2022-11-28info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfhttp://repositorio.ufsm.br/handle/1/27240ark:/26339/0013000016fccporAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2022-12-05T14:15:24Zoai:repositorio.ufsm.br:1/27240Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2022-12-05T14:15:24Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Otimização multiobjetivo do despacho térmico para sistemas integrados de energia considerando diferentes patamares da carga complementar
Multi-objective optimization of thermal dispatch for integrated energy systems considering different complementary load levels
title Otimização multiobjetivo do despacho térmico para sistemas integrados de energia considerando diferentes patamares da carga complementar
spellingShingle Otimização multiobjetivo do despacho térmico para sistemas integrados de energia considerando diferentes patamares da carga complementar
Hammerschmitt, Bruno Knevitz
Otimização multiojetivo do despacho térmico
Patamares de carga complementar
Despacho térmico de curto prazo
Despacho econômico
Energia renovável
Multi-objective optimization of thermal dispatch
Complementary load levels
Short-term thermal dispatch
Economic dispatch
Renewable energy
CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
title_short Otimização multiobjetivo do despacho térmico para sistemas integrados de energia considerando diferentes patamares da carga complementar
title_full Otimização multiobjetivo do despacho térmico para sistemas integrados de energia considerando diferentes patamares da carga complementar
title_fullStr Otimização multiobjetivo do despacho térmico para sistemas integrados de energia considerando diferentes patamares da carga complementar
title_full_unstemmed Otimização multiobjetivo do despacho térmico para sistemas integrados de energia considerando diferentes patamares da carga complementar
title_sort Otimização multiobjetivo do despacho térmico para sistemas integrados de energia considerando diferentes patamares da carga complementar
author Hammerschmitt, Bruno Knevitz
author_facet Hammerschmitt, Bruno Knevitz
author_role author
dc.contributor.none.fl_str_mv Abaide, Alzenira da Rosa
http://lattes.cnpq.br/2427825596072142
Knak Neto, Nelson
Garcia, Vinícius Jacques
Santos, Moises Machado
Pereira, Paulo Ricardo da Silva
dc.contributor.author.fl_str_mv Hammerschmitt, Bruno Knevitz
dc.subject.por.fl_str_mv Otimização multiojetivo do despacho térmico
Patamares de carga complementar
Despacho térmico de curto prazo
Despacho econômico
Energia renovável
Multi-objective optimization of thermal dispatch
Complementary load levels
Short-term thermal dispatch
Economic dispatch
Renewable energy
CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
topic Otimização multiojetivo do despacho térmico
Patamares de carga complementar
Despacho térmico de curto prazo
Despacho econômico
Energia renovável
Multi-objective optimization of thermal dispatch
Complementary load levels
Short-term thermal dispatch
Economic dispatch
Renewable energy
CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
description The complexity of integrated energy systems, with centralized load and generation, generally results from their operation, coordination and planning. In addition, an electric system with multiple energy generation sources requires some planning for each source dispatch, in order to protect themselves with energy reserves and keep the system with uninterrupted supply and reliable within security limits. Aiming decarbonize the energy matrix most electrical systems are undergoing a transition with renewable resources and at full expansion. However, these technologies have the characteristics of being intermittent and stochastic. In view of this, energy sources with a controllable power generation, generally coming from energy resources of a fossil nature, become necessary to accommodate the generation inconstancy from intermittent renewable sources, also to complement the load demand requests due to the unavailability of other energy sources. For this, multi-energy systems for electric energy generation need tools for the dispatch optimization of controllable energy sources, as well as for the systems evaluation and adequacy in face of the seasonal variations of the energy generation and the load demand. Therefore, this work aims to develop a multi-objective optimization model for short-term thermal dispatch, following the capacity constraints of the Thermal Power Plants (TPPs) and based on the minimum cost, by the model Non-dominated Sorting Genetic Algorithm-III (NSGA-III). To achieve the proposed objective, it was necessary to adapt the system with the adjustment of the base energy generation, coming from renewable energies. For this, a method of adjusting the base energy data was developed to reduce the complementary energy climb, restricting to the flexible thermal power limit. Then, the complementation by thermal energy was carried out, applying the NSGA-III model to obtain the best arrangements of the thermal dispatch, considering the levels of base, intermediate and peak complementary load, observing the capacity limits and at minimum cost. Additionally, an upper limit of reserve energy was proposed, as a precaution for emergencies. With this, from the lowest cost arrangement, the thermal dispatch was performed considering the fully meet of the system complementary load. The results obtained reduced the TPPs idleness, maximized the thermal dispatch of the renewable energy sources, and still made viable the system operational flexibility. Thus, this work allows the thermal dispatch optimization in the short-term, and can also help in planning studies of multi-energy systems.
publishDate 2022
dc.date.none.fl_str_mv 2022-12-05T14:15:24Z
2022-12-05T14:15:24Z
2022-11-28
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufsm.br/handle/1/27240
dc.identifier.dark.fl_str_mv ark:/26339/0013000016fcc
url http://repositorio.ufsm.br/handle/1/27240
identifier_str_mv ark:/26339/0013000016fcc
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
Brasil
Engenharia Elétrica
UFSM
Programa de Pós-Graduação em Engenharia Elétrica
Centro de Tecnologia
publisher.none.fl_str_mv Universidade Federal de Santa Maria
Brasil
Engenharia Elétrica
UFSM
Programa de Pós-Graduação em Engenharia Elétrica
Centro de Tecnologia
dc.source.none.fl_str_mv reponame:Manancial - Repositório Digital da UFSM
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Manancial - Repositório Digital da UFSM
collection Manancial - Repositório Digital da UFSM
repository.name.fl_str_mv Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv atendimento.sib@ufsm.br||tedebc@gmail.com
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