On-line power system security analysis
Article Abstract:
The security of electricity as it is transmitted is a significant issue. Strict synchronism in the rotational speed of interconnected generated units is required for a stable power supply. The loss of synchronism among system elements can cause damage to equipment. Security of online power sources can be defined as the probability that a system's operating point will remain in a viable state space, given the probabilities of system changes and environmental factors. In order to determine whether or not a power supply is reasonably safe from significant operation interference, security assessment analysis is performed. The three basic elements of on-line security analysis and control are monitoring, assessment and control. Contingency analysis is a method of predicting the outcome of unexpected power outage that is conducted via a software application. There are specific procedures to identify preventative actions for power supply problems. Dynamic security analysis examines the state of the power supply to ensure that transition will lead to acceptable operating conditions.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1992
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Knowledge-based systems as operational aids in power system restoration
Article Abstract:
Utilities are increasingly using knowledge-based systems to help with power system restoration. Integrating knowledge-based technology with network simulators, analytical tools, guidance methods, communication facilities, data bases and graphical user interfaces can enhance restoration planning and facilitate on-line restoration. As power system reliability increases, major disturbances occur less often and operators receive little training in power restoration. High-fidelity simulators can help exercise and prepare operators if the simulators are also interactive and offer responses similar to those of a real power system. An ideal system would integrate the capability of knowledge-based systems with analytical tools required by power system restoration. This system requires a sophisticated guidance method along with an on-line, real time inference facility and communications facilities. The result will be a system that reduces losses and speeds up system restorations.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1992
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Artificial intelligence in power system operations
Article Abstract:
Designers of Energy Management Systems (EMS) use Artificial Intelligence (AI) to solve diagnosis and decision problems making EMS more useful. The use of AI in EMS is explained, and differences between knowledge-based expert systems and traditional numeric algorithm development are examined. The differences between expert systems and the numeric approach are illustrated with a relay fault diagnosis system, demonstrating both the traditional and rapid prototyping approaches to its development. AI implementation in EMS and potential AI applications to power system operations are explored.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1987
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