Transfer Limits Monitoring

A power transfer limit is the maximum power that can be transferred in a power transaction without violating a set of security criteria. This is also referred to as the Total Transfer Capability (TTC), from which the Available Transfer Capability (ATC) can be determined using appropriate rules.

A power transaction specifies a way in which the system load and/or generation changes according to a set of rules. In our software, a power transaction is specified using the source/sink concept, and flexible load/generation scaling and scheduling options are provided to define dispatches for the source/sink.

The power transfer limits determined can be subject to any or all of the following security criteria:

, Thermal overload
, Steady-state voltage violations
, Transient voltage violations
, Transient frequency violations
, Voltage stability margin
, Active and reactive power reserve

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