Reactive power planning under conditional-value-at-risk assessment using chance-constrained optimisation

Autor(es)

Lopez, Julio ^[1] ; Contreras, Javier ^[2] ; Mantovani, Jose R. S. ^[1]

Afiliação do(s) autor(es)

^[1] UNESP Univ Estadual Paulista, Fac Engn Ilha Solteira, Dept Engn Eletr, Sao Paulo - Brazil

^[2] Univ Castilla La Mancha, ETS Ingn Ind, E-13071 Ciudad Real - Spain

• Tipo de documento: Artigo Científico
• Fonte: IET GENERATION TRANSMISSION & DISTRIBUTION; v. 9, n. 3, p. 231-240, FEB 19 2015.
• Citações Web of Science: 9

Resumo

This study presents a risk-assessment approach to the reactive power planning problem. Chance-constrained programming is used to model the random equivalent availability of existing reactive power sources for a given confidence level. Load shedding because of random equivalent availability of those reactive power sources is implemented through conditional-value-at-risk. Tap settings of under-load tap-changing transformers are considered as integer variables. Active and reactive demands are considered as probability distribution functions. The proposed mathematical formulation is a two-stage stochastic, multi-period mixed-integer convex model. The tradeoff between risk mitigation and investment cost minimisation is analysed. The proposed methodology is applied to the CIGRE-32 electric power system, using the optimisation solver CPLEX in AMPL. (AU)

• Processo FAPESP: 10/16728-5 - Planejamento de Reativos de Sistemas Elétricos de Potência Multi-Áreas Através de Modelos Estocásticos.
• Beneficiário: Julio César López Quizhpi
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 12/21570-7 - Planejamento de reativos de sistemas elétricos de potência Multi-Áreas considerando análise de risco, incertezas na demanda e capacidade das fontes reativas, e restrições de limite de investimento
• Beneficiário: Julio César López Quizhpi
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado