Boundary of Operating Region Transient Stability (BOR-TS) – Dynamic Security Region

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BOR-TS is a fast, effective tool for planners and operators.

BOR-TS is a friendly, flexible and easy-to-use program to automatically generate nomograms.

While having all the features and functionality of BOR, BOR-TS allows the user to monitor both transient and steady-state limits. Monitored limits incorporated in BOR-TS are:

Transient stability limit
Steady-state stability limit
Thermal limit
Voltage range/drop limit

Different criteria may be used in BOR-TS to specify transient stability limit.For example, angular (first swing) stability may be considered as a transient stability constraint.

The system is secure under such operating conditions (such sets of injections) that no steady-state or transient stability constraints are being violated. This is the dynamic security region of a system.

Operating within the stability boundary is secure. Each point on the stability boundary corresponds to at least one of the steady-state or transient constraints being violated.