Voltage security assessment using generalized operational planning knowledge

Journal Article · Mon Feb 01 04:00:00 EST 1993 · IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/59.221245· OSTI ID:6264250

Cote, J W; Liu, Chenching ^[1]

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1. Univ. of Washington, Seattle, WA (United States). Dept. of Electrical Engineering

Traditional approaches to on-line static security assessment use numeric algorithms for analyzing contingencies. However, these algorithms do not provide insight into the deficiencies in the operating point which allow contingencies to cause violations. An expert system has been developed to apply operational planning knowledge to the static security assessment problem. The expert system performs the contingency selection and remedial action tasks usually conducted off-line by an operational planner. Rule based techniques are used to select contingencies expected to cause steady state bus voltage violations. The selection identifies the most severe outage in each local area such that power flows need only be run for these worse case outages. Both single and double branch outages are considered. Double outages are defined as scenarios where two branches share one bus, thereby providing coverage for events where a single branch outage evolves into a double branch outage due to protection, relay, or breaker failure. This system has been tested using the IEEE 30 bus system and a Los Angeles Department of Water and Power 182 bus system.

• OSTI ID: 6264250
• Journal Information: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States) Vol. 8:1; ISSN 0885-8950; ISSN ITPSEG
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100* -- Power Systems-- (1990-)
ENERGY SYSTEMS
EXPERT SYSTEMS
ON-LINE SYSTEMS
POWER SYSTEMS
POWER TRANSMISSION
STABILITY