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Application of Support Vector Machine Classification to Enhanced Protection Relay Logic in Electric Power Grids | IEEE Conference Publication | IEEE Xplore

Application of Support Vector Machine Classification to Enhanced Protection Relay Logic in Electric Power Grids


Abstract:

s the power systems in the United States become increasingly large, complex, and interconnected, the traditional relays are proving to be inadequate during conditions pri...Show More

Abstract:

s the power systems in the United States become increasingly large, complex, and interconnected, the traditional relays are proving to be inadequate during conditions prior and during the blackouts. Smart relays, which are more intelligent, are therefore needed to meet the security and reliability needs of the future power grid. The goal of classification of smart relays is to build a model which can discriminate the normal conditions from the fault conditions based on the measurements which can be obtained locally. In this paper we propose a decision algorithm based on applying support vector machine (SVM) classification in protection relays. Our proposed method is both efficient and provably scalable.
Date of Conference: 10-12 October 2007
Date Added to IEEE Xplore: 22 January 2008
ISBN Information:
Conference Location: Montreal, QC, Canada

I. Introduction

Today's electric power systems are very large and complex interconnected networks. It has been recognized that they are one of the most critical infrastructures, whose performance has tremendous effects on many aspects of our daily lives in today's society. This key role of the electric power grid poses difficult requirements of meeting acceptable security and reliability levels even during highly abnormal conditions. Such conditions may occur with very low probability but potentially have high impact, and the system must be sufficiently adaptive to minimize the adverse effects on equipment safety and to maintain the continuity of electricity service. It is practically impossible to design the system for serving customers in an uninterrupted way during any combination of extreme conditions, such as those created by the hard-to-predict large equipment failures or by the intended disabling of the key equipment. Because of this, various procedures are put in place to adjust the system when these events happen and to disconnect the service only where it is essential to do so to preserve the service to the rest of the customers. These procedures are currently a combination of system operator's actions, automated control, and automated system protection. This paper concerns, in particular, the problem of protection for transmission lines.

References

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