Static security assessment according to N-1 criterion for transmission lines based on sampled-blind-number

2021 ◽  
Author(s):  
Y. Liu ◽  
Y. Lei ◽  
S. Peng ◽  
Z. Zhang ◽  
S. Zhang
Keyword(s):  
Transmission Lines ◽  
Security Assessment ◽  
Blind Number ◽  
Static Security

Performance Evaluation of Deregulated Power System Static Security Assessment using RBF-NN Technique

2013 ◽  
Vol 64 (1) ◽  
Author(s):  
I. S. Saeh ◽  
M. W. Mustafa
Keyword(s):  
Performance Evaluation ◽  
Power System ◽  
Test System ◽  
Operating Conditions ◽  
Attribute Selection ◽  
Security Evaluation ◽  
Base Case ◽  
Security Assessment ◽  
Deregulated Power System ◽  
Static Security

This paper proposes RBF-NN for classification and performance evaluation of static security assessment in deregulated power system. This study suggests an attribute selection and classification algorithms for static security evaluation (SSE) and its impact is proposed. For the base case, pure pool dispatch (with no bilateral transactions) and bilateral transaction comparisons are discussed on IEEE57- bus system. In this paper, a comprehensive comparison of AI classifiers to examine whether the power system is secured under steady-state operating conditions is presented. The proposed classifier is implemented on a 30 and 57 IEEE test system. To assess the actual overall performance regarding studying techniques, this research proposes performance evaluation schemes vis CCR, TPR and TNR and implemented on various IEEE test systems. The simulation results have shown the powerfulness of the proposed method as compare to another proposed AI classifiers. 

scholarly journals Risk-Based Active Power Redispatch Optimization

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 716
Author(s):  
Karol Wawrzyniak ◽  
Endika Urresti Padrón ◽  
Wojciech Jaworski ◽  
Roman Korab
Keyword(s):  
Power System ◽  
Transmission Lines ◽  
Unit Commitment ◽  
Load Shedding ◽  
Security Assessment ◽  
Reference Case ◽  
Dynamic Security Assessment ◽  
System Operator ◽  
Remedial Actions ◽  
The Cost

Risk-based redispatch optimization is proposed as a methodology to support the Transmission System Operator (TSO) with preventive remedial actions obtained by extending the security-constrained unit commitment/economic dispatch with constraints resulting from the risk assessed for the power system. Although being heuristic, the methodology is based on comprehensive dynamic security assessment as time-domain simulations are used, allowing to express the degree of all types of instabilities, e.g., caused by contingencies, in monetary terms. Therefore, the risk is assessed as the expected value of the cost incurred by the TSO. Such an approach forms a new pathway to including risk in planning procedures already used by TSOs. Results obtained for the IEEE39 dynamic power system, with costs assigned to load shedding and generator tripping due to single transmission lines short-circuits, are shown as a reference case.

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