Linear power flow formulation for low-voltage DC power grids
This paper presents a reformulation of the power flow problem in low-voltage dc (LVDC) power grids via Taylor's series expansion. The solution of the original nonlinear quadratic model is achieved with this proposed formulation with minimal error when the dc network has a well defined operative...
- Autores:
- Tipo de recurso:
- Fecha de publicación:
- 2018
- Institución:
- Universidad Tecnológica de Bolívar
- Repositorio:
- Repositorio Institucional UTB
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.utb.edu.co:20.500.12585/8865
- Acceso en línea:
- https://hdl.handle.net/20.500.12585/8865
- Palabra clave:
- Convex approximation
Linear approximation
Low-voltage dc power grids
Nonlinear power flow equations
Taylor's series expansion
C++ (programming language)
Electric load flow
Iterative methods
MATLAB
Nonlinear equations
Numerical methods
Taylor series
Convex approximation
Linear approximations
Low voltages
Nonlinear power flow
Taylor's series expansion
Electric power transmission networks
- Rights
- restrictedAccess
- License
- http://creativecommons.org/licenses/by-nc-nd/4.0/
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Linear power flow formulation for low-voltage DC power grids |
| title |
Linear power flow formulation for low-voltage DC power grids |
| spellingShingle |
Linear power flow formulation for low-voltage DC power grids Convex approximation Linear approximation Low-voltage dc power grids Nonlinear power flow equations Taylor's series expansion C++ (programming language) Electric load flow Iterative methods MATLAB Nonlinear equations Numerical methods Taylor series Convex approximation Linear approximations Low voltages Nonlinear power flow Taylor's series expansion Electric power transmission networks |
| title_short |
Linear power flow formulation for low-voltage DC power grids |
| title_full |
Linear power flow formulation for low-voltage DC power grids |
| title_fullStr |
Linear power flow formulation for low-voltage DC power grids |
| title_full_unstemmed |
Linear power flow formulation for low-voltage DC power grids |
| title_sort |
Linear power flow formulation for low-voltage DC power grids |
| dc.subject.keywords.none.fl_str_mv |
Convex approximation Linear approximation Low-voltage dc power grids Nonlinear power flow equations Taylor's series expansion C++ (programming language) Electric load flow Iterative methods MATLAB Nonlinear equations Numerical methods Taylor series Convex approximation Linear approximations Low voltages Nonlinear power flow Taylor's series expansion Electric power transmission networks |
| topic |
Convex approximation Linear approximation Low-voltage dc power grids Nonlinear power flow equations Taylor's series expansion C++ (programming language) Electric load flow Iterative methods MATLAB Nonlinear equations Numerical methods Taylor series Convex approximation Linear approximations Low voltages Nonlinear power flow Taylor's series expansion Electric power transmission networks |
| description |
This paper presents a reformulation of the power flow problem in low-voltage dc (LVDC) power grids via Taylor's series expansion. The solution of the original nonlinear quadratic model is achieved with this proposed formulation with minimal error when the dc network has a well defined operative conditions. The proposed approach provides an explicit solution of the power flow equations system, which avoids the use of iterative methods. Such a characteristic enables to provide accurate results with very short processing times when real operating scenarios of dc power grids are analyzed. Simulation results verify the precision and speed of the proposed method in comparison to classical numerical methods for both radial and mesh configurations. Those simulations were performed using C++ and MATLAB, which are programming environments commonly adopted to solve power flows. © 2018 Elsevier B.V. |
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2018 |
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2018 |
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2020-03-26T16:32:31Z |
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2020-03-26T16:32:31Z |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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Artículo |
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Electric Power Systems Research; Vol. 163, pp. 375-381 |
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03787796 |
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https://hdl.handle.net/20.500.12585/8865 |
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10.1016/j.epsr.2018.07.003 |
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Universidad Tecnológica de Bolívar |
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Repositorio UTB |
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56919564100 55791991200 57202996445 22836502400 36449223500 |
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Electric Power Systems Research; Vol. 163, pp. 375-381 03787796 10.1016/j.epsr.2018.07.003 Universidad Tecnológica de Bolívar Repositorio UTB 56919564100 55791991200 57202996445 22836502400 36449223500 |
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https://hdl.handle.net/20.500.12585/8865 |
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eng |
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eng |
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Recurso electrónico |
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application/pdf |
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Elsevier Ltd |
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Elsevier Ltd |
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2020-03-26T16:32:31Z2020-03-26T16:32:31Z2018Electric Power Systems Research; Vol. 163, pp. 375-38103787796https://hdl.handle.net/20.500.12585/886510.1016/j.epsr.2018.07.003Universidad Tecnológica de BolívarRepositorio UTB5691956410055791991200572029964452283650240036449223500This paper presents a reformulation of the power flow problem in low-voltage dc (LVDC) power grids via Taylor's series expansion. The solution of the original nonlinear quadratic model is achieved with this proposed formulation with minimal error when the dc network has a well defined operative conditions. The proposed approach provides an explicit solution of the power flow equations system, which avoids the use of iterative methods. Such a characteristic enables to provide accurate results with very short processing times when real operating scenarios of dc power grids are analyzed. Simulation results verify the precision and speed of the proposed method in comparison to classical numerical methods for both radial and mesh configurations. Those simulations were performed using C++ and MATLAB, which are programming environments commonly adopted to solve power flows. © 2018 Elsevier B.V.Universidad Nacional de Colombia Universidad Tecnológica Nacional Departamento Administrativo de Ciencia, Tecnología e Innovación, COLCIENCIAS: P-17211, UNAL-ITM-39823This work was supported by Universidad Tecnológica de Bolivar , Universidad Tecnológica de Pereira , Instituto Tecnológico Metropolitano , Universidad Nacional de Colombia and COLCIENCIAS under the research projects P-17211 and UNAL-ITM-39823 and the Doctoral Scholarship 727-2015. Moreover, this work was also supported by the PhD program in Engineering of the Universidad Tecnológica de Pereira and the Ph.D. program “Doctorado en Ingeniería – Línea de Investigación en Automática” of the Universidad Nacional de Colombia.Recurso electrónicoapplication/pdfengElsevier Ltdhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/restrictedAccessAtribución-NoComercial 4.0 Internacionalhttp://purl.org/coar/access_right/c_16echttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85050132713&doi=10.1016%2fj.epsr.2018.07.003&partnerID=40&md5=3823f68cab40910397b872622d6ee94cLinear power flow formulation for low-voltage DC power gridsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArtículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_2df8fbb1Convex approximationLinear approximationLow-voltage dc power gridsNonlinear power flow equationsTaylor's series expansionC++ (programming language)Electric load flowIterative methodsMATLABNonlinear equationsNumerical methodsTaylor seriesConvex approximationLinear approximationsLow voltagesNonlinear power flowTaylor's series expansionElectric power transmission networksMontoya O.D.Grisales-Noreña L.F.González-Montoya D.Ramos-Paja C.A.Garces A.Elsayed, A.T., Mohamed, A.A., Mohammed, O.A., DC microgrids and distribution systems: an overview (2015) Electr. Power Syst. Res., 119, pp. 407-417Parhizi, S., Lotfi, H., Khodaei, A., Bahramirad, S., State of the art in research on microgrids: a review (2015) IEEE Access, 3, pp. 890-925Sreedharan, P., Farbes, J., Cutter, E., Woo, C.K., Wang, J., Microgrid and renewable generation integration: University of California, San Diego (2016) Appl. Energy, 169, pp. 709-720Garces, A., Uniqueness of the power flow solutions in low voltage direct current grids (2017) Electr. Power Syst. Res., 151, pp. 149-153Garces, A., A linear three-phase load flow for power distribution systems (2016) IEEE Trans. Power Syst., 31, pp. 827-828Machado, J.E., Griñó, R., Barabanov, N., Ortega, R., Polyak, B., On existence of equilibria of multi-port linear ac networks with constant-power loads (2017) IEEE Trans. Circuits Syst. I: Regul. Pap., 64, pp. 2772-2782Dragicevic, T., Lu, X., Vasquez, J.C., Guerrero, J.M., DC microgrids – Part I: A review of control strategies and stabilization techniques (2016) IEEE Trans. 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