Analysis of Optimal Power Flow Formulations for HVAC and VSC-HVDC Transmission Networks

Autor(es)

Melchor, J. N. G. ; Romero, Ruben ; Mancarella, P. ; IEEE

• Tipo de documento: Artigo Científico
• Fonte: 2018 INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY (POWERCON); v. N/A, p. 7-pg., 2018-01-01.

Resumo

The Optimal Power Flow (OPF) problem has been widely studied by researchers and electric industry practitioners for many years. Most of these studies use DC power flow equations to represent the transmission system. However, future power systems will have to deal with new challenges, including integration of renewable energy resources, HVDC links, FACTS devices, etc. The DC formulation may not be appropriate to comprehensively model the behaviour of the new system, for which AC formulations might be required. In this paper, the integration of point-to-point and multi-terminal VSC-HVDC in three nonlinear and DC OPF formulations is analysed using three different test systems. The Knitro and CPLEX solvers are used as optimisation tools. The results show that the generation dispatch resulting from the DC formulation could overload the VSC-HVDC and HVAC transmission branches in the real operation. Moreover, it is demonstrated that the nonlinear formulations can produce good quality solutions that preserve the secure operation of the transmission system. (AU)

• Processo FAPESP: 15/04190-4 - Meta-heurísticas aplicadas ao modelo AC no planejamento da expansão de sistemas de transmissão
• Beneficiário: José Nicolás Melchor Gutiérrez
• Modalidade de apoio: Bolsas no Brasil - Doutorado