Contingency screening for steady state security analysis by using genetic algorithms

Özdemir, Aydoğan; Lim, Jae Yun; Singh, C.

doi:10.1109/pess.2002.1043455

Cited by 7 publications

(1 citation statement)

References 15 publications

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“…On-line contingency analysis requires evaluation and ranking of a large number of contingency cases in order to assess the static security of a power system [7]. There are fast methods for contingency ranking techniques using the Jacobian matrix manipulation in the load flow study [8] and other approaches, such as pattern recognition, neural network, genetic algorithm, etc [9]. The proposed algorithm has been tested on IEEE test power systems.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Transmission System Operation Conditions through the Evaluation of Performance Index

Çelo¹,

Bualoti²,

Voshtina³

2020

International Journal of Engineering Research and Technology

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Transmission System Operational Security is one of the challenging tasks for power engineers and its managers. Transmission Systems are designed to fulfil N-1security criteria during operation. The operation of the transmission system in accordance with the operational security limits, in order to avoid emergency situations, or situations that could lead to partial system shut down or total system black outs, requires the continuous studying of the power system to verify different system scenarios and the fulfilment of the operational security limits for the Transmission System and the entire Power System. One of the most frequent studies as well as indicative ones about the Transmission System is the contingency analysis and fulfilment of N-1 criteria. Usually TSOs use SCADA system and EMS module, which perform a continuous security analysis based on the state estimator results. These analysis can be done, also off-line through power flow software. Contingency analysis require the study of the system before and post contingency, so a considerable volume of calculations has to be done including different scenarios of contingencies lines, generators, or nodes. A fast method to evaluate and rank contingencies which cause overloads in the transmission system is through performance indexes of active and reactive power. This article aims to provide the results of a study on the contingencies of Albania Transmission System. In the recent years the Albanian power system, had significant developments, i.e. the expansion and further penetration of small HPPs into the 110kV network, reinforcement of the 110kV grid through construction of the new lines on this voltage level, construction of 400 kV lines etc. Referring to the fact that Albania is still a net importer of the electricity, the recent development on power sector, under an updated legislation frame work has lead to less dependency from import, consequently the contingency analysis is very important to be done to identify the system constraints.

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Section: Introductionmentioning

confidence: 99%