Security Assessment
UW - Electrical Engineering
APT
Security Assessment is a term used to describe the process of ensuring system operating security. Typically, power systems operating in an N-1 conditions are considered secure. N-1 means that the system will remain in a secure operating state if any single event or failure occurs. In a secure state all system parameters are operating as desired with all voltages within their specified limits, no power lines overloaded, all loads on line and being provided with power.
Modern power systems are often operated near capacity. During periods of peak demand, power lines may be loaded to near capacity. Operating a power system near capacity requires quick response by operators in the event of an unexpected change in the systems operating configuration. Rapid security assessment is needed in order for the system to continue to operate normally when contingencies occur.
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