Contingency screening and ranking algorithm using two different sets of security performance indices

Abstract

Absrracdn this paper it is studied and analyzed the impact of different security performance indices on a contingency screening and ranking algorithm. The proposed filtering technique consists of three modules, with different complexity levels. The contingencies are ranked in accordance with severity indices that allow assessing the influence of the overloads and voltage limit violations in the power network. The developed software package was applied to the IEEE 118 Test Power System. The simulation results that were produced using two different sets of security indices were compared, showing a satisfactory agreement The simulation was carried out considering a monotonous increase of the load level as well as a random one. For the different solutions the computing times were also obtained. Finally, some conclusions that provide a valuable contribution to the understanding of the Electric Power System security analysis are pointed out.In& Terms-Electric Power Systems, Steady-State Security Analysis, Contingency Filtering and Ranking.

Conceptual Analysis of Different Clustering Techniques for Static Security Investigation

“…As previously stated, the contingency analysis objective can be summarized in identifying and ranking the most deleterious scenarios for further rigorous analysis [28,[44][45][46][47]. Various indices could use to reflect the impact of contingencies on the security of the power system.…”

“…The performance index proposed in [3] can be considered the first attempt to quantify the severity of contingencies. Then many attempts followed [3] have been reported in [29,36,45,[48][49][50]. The simplicity of the mathematical structure is what characterizes the performance index in [3].…”

Contingency Analysis about Restoration of outage in Distribution System

“…따라서 배전선로에 산재되어 있는 배 전자동화용 단말장치(FRTU : Feeder Remote Terminal Unit)을 원격으로 감시, 제어하여 계통에 고장이 발생하였을 때 정전시간 을 단축하고 정전구간을 축소하여 전력 공급 신뢰도를 높이기 위 해 배전자동화 시스템 (DAS: Distribution Automation System) 이 도입되었다. 배전자동화시스템의 도입으로 인해 고장으로 인 한 정전발생 시 신속하게 연계피더로 정전 부하를 절체 하여 전 력공급을 재개할 수 있다 [5] [4], [14], [15], [16], [17]. 간을 연계피더로 절체 할 때 연계피더가 과부하가 되지 않도록 적정하게 분할하여 정전구간을 복구한다 [9], [10], [11], [12].…”

Lista Ranqueada de Equipamentos via Amostragem por Importância para Estudos de Confiabilidade de Sistemas de Geração e Transmissão

“…A identificação de contingências que resultam em maiores impactos na operação estática de SEPs tem sido discutida ao longo de muitos anos, por meio de diversos modelos, (Stott, Alsac, Alvarado, 1985), (Agreira et al, 2003) e (Stefopoulos et al, 2005), apresentando importantes aplicações no planejamento da expansão e da operação da transmissão, e na avaliação da confiabilidade. Em muitos estudos é essencial avaliar a segurança de sistemas de potência para diferentes pontos de operação, o que pode exigir grande esforço computacional.…”