| Texto completo | |
| Autor(es): |
Nascimento, Matheus R.
;
Ramos, Flavio A.
;
Almeida, Lucas C.
;
Goncalves, Natali V. C.
;
Grilo-Pavani, Ahda P.
;
Ramos, Rodrigo A.
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | 2023 IEEE POWER & ENERGY SOCIETY GENERAL MEETING, PESGM; v. N/A, p. 5-pg., 2023-01-01. |
| Resumo | |
This paper presents a hybrid method to calculate the minimum Voltage Stability Margin (VSM) for voltage security assessment of electric power systems, considering uncertainties in the Load Growth Direction (LGD). First, a sampling algorithm was developed (based on the Cross-Entropy method, which samples by importance) in order to obtain a set of critical growth directions that violate the predefined limits for the VSM. After that, the Differential Evolution method was applied to develop an algorithm that constructs a stratified sample set, starting from the previous set of critical directions as its initial population. The combination of both algorithms is capable of identifying the minimum voltage stability margin considering the most critical LGD associated to a particular base case of the system, which is the main contribution of this paper. Furthermore, the algorithms were extended to perform contingency analysis, in such a way that they can deal with the conditions that actually pose the highest threats to voltage stability in electric power systems. The method was tested and validated on a reduced Brazilian south-southeast system model composed of 107 buses. (AU) | |
| Processo FAPESP: | 20/09100-1 - Método heurístico para identificar a menor margem de estabilidade devido a bifurcações considerando diferentes padrões de carga |
| Beneficiário: | Matheus Rosa Nascimento |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |
| Processo FAPESP: | 18/20104-9 - Monitoramento via sincrofasores, análise de segurança dinâmica e controle de redes elétricas do futuro |
| Beneficiário: | Luís Fernando Costa Alberto |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |