Integrated distribution control and protection system

Technical Report · Sun Dec 01 04:00:00 EST 1991

OSTI ID:6122130

A prototype distribution automation system incorporating protection, control, and monitoring functions has been developed, installed, and operated at a utility substation. The system, which employs a distributed microprocessor-based architecture, is of interest to electric utilities because of its potential to improve use of power system facilities, enhance system operation, reduce outage duration, and provide more timely information for system planning. The project team developed a system functional specification and used specialized computer software to improve and expand previously implemented programs for automatic control functions. In addition, team members developed computer programs for digital feeder protection functions, designed and developed prototype hardware for the subsystems, and developed resident firmware. Finally, they installed and operated the completed system at a Texas Utility Electric Company substation in Fort Worth, Texas, and evaluated results of the one-year demonstration, which included open- and closed-loop testing of all functions. The outcome of this project indicated that reliable digital feeder protection could be accomplished, automatic control functions could be implemented to improve power system operation efficiency, and secure digital data communications could be achieved in the substation environment. As a result of the successful demonstration of these capabilities, GE has embarked on the commercial development of digital products that perform selected functions from the integrated distribution control and protection system.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States); General Electric Co., Malvern, PA (United States). Meter and Control Business Dept.
• Sponsoring Organization: EPRI; Electric Power Research Inst., Palo Alto, CA (United States)
• OSTI ID: 6122130
• Report Number(s): EPRI-EL-7462
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240200* -- Power System Networks
Transmission & Distribution-- (1990-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
AUTOMATION
CIRCUIT BREAKERS
COMPUTER ARCHITECTURE
COMPUTERIZED CONTROL SYSTEMS
COMPUTERS
CONTROL SYSTEMS
DATA ACQUISITION
DIGITAL SYSTEMS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
MONITORING
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
POWER DISTRIBUTION SYSTEMS
POWER SUBSTATIONS
SAFETY