Experiences and Benefits of Systems for Wide Area Monitoring

Transmission systems are more and more pushed towards their capacity limits for various reasons. Amongst these, the factors contributing most are a continuous gradual growth in consumption, system extension restrictions due to environmental concerns and the increase in cross-border trading activities. The latter introduces a significant variation of power flow patterns. This means a new challenge for the real-time monitoring of stresses of transmission systems. To serve this purpose, a phasor measurement technology has been proposed in Phadke (1). Due to advances in communication and computation technologie this method has become more feasible.

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