An external network modeling approach for on-line security analysis

Journal Article · Tue May 01 04:00:00 EDT 1990 · IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/59.54567· OSTI ID:6662875

Lu, C N; Liu, K C; Vemuri, S ^[1]

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1. Harris Corp., Controls and Composition Div., Melbourne, FL (US)

In order to use state estimation for external network modeling the problems associated with the large scale state estimation are addressed. In this paper, an approach that combines the load flow and state estimation techniques is proposed. The proposed approach is designed to improve the numerical stability and provide an external network model for on-line security analysis. An initial load flow study that provides a preliminary solution for external network is followed by a state estimation using pseudo-measurements and proper weighing factors. Methods for handling multiple observable islands in the external network modeling process are described and simulation tests are carried out on a practical system with realistic complexity.

• OSTI ID: 6662875
• Journal Information: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (USA) Vol. 5:2; ISSN 0885-8950; ISSN ITPSE
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100* -- Power Systems-- (1990-)
240400 -- Power Transmission & Distribution-- Health & Safety-- (1990-)
29 ENERGY PLANNING, POLICY, AND ECONOMY
296000 -- Energy Planning & Policy-- Electric Power
ENERGY MANAGEMENT
ENERGY MODELS
ENERGY SYSTEMS
INTERCONNECTED POWER SYSTEMS
MANAGEMENT
NETWORK ANALYSIS
ON-LINE MEASUREMENT SYSTEMS
ON-LINE SYSTEMS
PLANNING
POWER SYSTEMS
SECURITY