The Rockport plant-system planning considerations

Abstract

This paper describes the system planning issues addressed and briefly reviews the planning studies carried out to determine the required EHV transmission facilities associated with the 2600 MW coal-fired Rockport Plant on the American Electric Power (AEP) System. This plant is located on the Ohio River in southern Indiana about 100 miles from the nearest AEP transmission facilities and about 150-250 miles from the nearest AEP load centers. Due to the remote location of this plant site and the need to minimize construction of new facilities because of financial and environmental considerations, only two lines have been constructed to integrate this plant into the existing transmission network. The steady state and dynamic performance of the Rockport Plant and the associated transmission system are discussed in this paper, including the improvements in performance which have been achieved by installing single-phase switching on both plant transmission outlets and temporary fast turbine valving on both 1300 MW generating units.

Importance of dynamic stability phenomena in power system planning

“…1) Momentary Fast Turbine Valving (MFTV) on Both Rockport Units: The Rockport MFTV control scheme was designed based on extensive studies of transient stability performance under various plant/system operating conditions [3], [4]. This scheme reduces the turbine mechanical power by about 50% within one second following selected disturbances to enhance the stability performance of the plant.…”

The Rockport plant-analysis of temporary fast turbine valving tests

“…The application of TFTV at Rockport was based on extensive studieg of transient stability performance under various plant/system operating conditions. A companion paper describes the Rockport Plant transient stability performance and other system planning considerations in greater detail [4].…”