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Severity indices for contingency screening in dynamic security assessment

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5 Author(s)
Brandwajn, V. ; ABB Syst. Control Co. Inc., Santa Clara, CA, USA ; Kumar, A.B.R. ; Ipakchi, A. ; Bose, A.
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At present, the computational requirement for dynamic security assessment (DSA) is a hurdle for a comprehensive on-line DSA to be implemented in energy management systems. In addition to faster time domain solutions, novel approaches and techniques are being developed for contingency screening and remedial actions. This paper describes one such development in the area of contingency screening which can be seen as an extension of techniques developed over the years for static security analysis. Some new concepts and methods are suggested for both contingency ranking and contingency classification (stable/unstable). Results from realistic test systems illustrate the capabilities and performance of the new approach

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Power Systems, IEEE Transactions on  (Volume:12 ,  Issue: 3 )