The project investigated the feasibility of separating bulk power systems in a controlled manner for the purpose of maintaining stability in individual electric islands. A complex East Interconnection bulk power system model in PSS®E was studied in terms of different dispatch patterns. A broad range of disturbances was investigated for system dynamics.
The outcomes of the project included:
- Identification of coherent groups of generators in the bulk power system
- Construction of time-domain indicators for system instability
- Determination of separation timing during a catastrophic event
- Coordination of under-frequency load shedding and out-of-step tripping protection with the controlled separation scheme