Adaptive transmission relaying concepts for improved performance

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · IEEE Trans. Power Del.; (United States)

DOI:https://doi.org/10.1109/61.193943· OSTI ID:6535587

Rockefeller, G D ^[1]; Wagner, C L ^[2]; Linders, J R ^[3]; Hicks, Sr, K L ^[4]; Rizy, D T ^[5]

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1. Electric Research and Management, St. Rose, LA (US)
2. Electric Research and Management, Export, PA (US)
3. Consultant Sarasota, FL (US)
4. Stone and Weber Engineering, Boston, MA (US)
5. Energy Div., Oak Ridge National Lab., Oak Ridge, TN (US)

Concepts for adaptive protective relaying of transmission lines are presented. These include changes in on-line relay settings, relay characteristics or logic in response to power system or environmental changes, or a result of operating experience. Such changes as line-out or generator-out contingencies, which affect fault current distributions and degrade the system's security level, initiate adaptive protection system (APS) responses. Adaptive relaying is shown to be capable of improving relaying reliability and power system security plus achieving better utilization of transmission facilities. Most of the concepts require a hierarchical computer system, involving front-line, parallel processors, a substation host and remote central processors, linked by channels that transmit data or relaying changes prior to or after a disturbance. Maximum value from adaptive relaying will result from integration with existing or planned substation control and data acquisition (SCADA) functions and interfacing with the central energy management system (EMS). Emphasis is placed on use of interim hardware approaches to allow evolutionary development, starting with just local signals and the first level of a hierarchy.

• OSTI ID: 6535587
• Journal Information: IEEE Trans. Power Del.; (United States), Journal Name: IEEE Trans. Power Del.; (United States) Vol. 3:4; ISSN ITPDE
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200104 -- Fossil-Fueled Power Plants-- Components
200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
29 ENERGY PLANNING, POLICY, AND ECONOMY
296002 -- Energy Planning & Policy-- Electric Power Transmission & Distribution-- (-1989)
CONTROL SYSTEMS
DATA ACQUISITION SYSTEMS
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
ENERGY MANAGEMENT SYSTEMS
ENERGY SYSTEMS
ENVIRONMENTAL EFFECTS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
PERFORMANCE
PLANNING
POWER TRANSMISSION LINES
RELAYS