Integrated hierarchical computer systems for adaptive protective relaying and control of electric transmission power systems

Technical Report · Wed Nov 01 00:00:00 EST 1989

DOI:https://doi.org/10.2172/5382017· OSTI ID:5382017

Phadke, A. G.; Horowitz, S. H.; Thorp, J. S. ^[1]

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1. Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (USA)

The report examines current protection practices on electric power transmission networks, their limitations, and the restrictions placed upon the protective systems by the current state of the technology. The field of digital computer based relaying is reviewed, and it is shown that computer relays with communication capability offer a substantial opportunity to change many aspects of relay systems for the better. In particular, the relay systems can be made responsive to changes taking place in the power system. This concept is labeled Adaptive Relaying,'' whereby relays and protective systems adapt themselves to changing power system condition. Several opportunities for adaptive relaying are revealed. In each case a technological assessment of the needs and feasibility of the adaptive approach is made. Impact of failures of the adaptive features on the system as a whole is discussed. Safe fall-back positions are discussed. Also considered are coordination aspects of adaptive and non-adaptive relaying functions within the same system. The report concludes with a conclusions section which includes a look at the directions for future research in this field. 43 refs., 17 figs., 1 tab.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (USA)
• Sponsoring Organization: DOE/CE
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5382017
• Report Number(s): ORNL/Sub-85-22005/1; ON: DE90004370
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ELECTRIC POWER
POWER DISTRIBUTION
COMPUTERIZED CONTROL SYSTEMS
ALARM SYSTEMS
COMMUNICATIONS
COMPUTER ARCHITECTURE
DATA PROCESSING
ELECTRIC POWER INDUSTRY
EQUIPMENT PROTECTION DEVICES
FAILURE MODE ANALYSIS
FEASIBILITY STUDIES
IMPLEMENTATION
MAINTENANCE
MATHEMATICAL MODELS
MEASURING METHODS
MONITORING
PERFORMANCE TESTING
PLANNING
POWER TRANSMISSION LINES
PROGRAM MANAGEMENT
RECOMMENDATIONS
RELAYS
REMOTE CONTROL
RESEARCH PROGRAMS
SECURITY
STABILITY
TECHNOLOGY ASSESSMENT
CONTROL
CONTROL SYSTEMS
ELECTRICAL EQUIPMENT
EQUIPMENT
INDUSTRY
MANAGEMENT
POWER
PROCESSING
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
TESTING
240201* - Power System Networks
Transmission & Distribution- AC Systems- (1990-)
990200 - Mathematics & Computers