FAST TRANSIENT SECURITY ASSESSMENT
Abstract
The growth of large interconnected power systems demands a higher degree of security for the normal operation of power systems. This demand emerges from the fact that the possible disturbances in large power systems could have catastrophic results. Although the security of a power system is a concern during the process of planning a power system, neither the system planner can predict all possible disturbances nor is it economically feasible to design a power system which is secure under any possible disturbance. Therefore it is the duty of power system control center to keep the operating point within the secure boundaries. In order to control the security of system, one has to monitor and analyze the level of system security and enhance it in case it does not fulfill the system security requirement. The pattern recognition technique which is used in this research is a method suitable for fast on line security assessment. This research rejects the long held premise that the steady state variables constitute a sufficient set for identification of stable and unstable classes, and proposes new features which results in fast classification of operating points with minimal error.
Degree
Ph.D.
Subject Area
Electrical engineering
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