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Contribution to Power System State Estimation and Transient Stability Analysis.

DE84014170

Publication Date	1984
Page Count	120
Abstract	A well-established trend in the power system is the increase in control area interconnections and interdependent operating strategies. A more recent, but growing trend is a concomitant increase in information exchange. The former increases the dependence of one area's security upon the operating conditions of other areas, while the latter allows security assessment methods to more effectively account for these dependencies. The need to evolve state estimation technology, as these trends continue to evolve the nature of the problem, is the principle motivation for the direction taken in this area of development. A secondary focus of this research is on a particular aspect of the third security assessment activity. This is the assessment of a power system's capability to maintain synchronism following a major disturbance. Transient stability assessment today is not performed in the real time operating environment, because existing analysis methods are far too computationally intensive to be used. The significant level of manual interaction and judgement required is also a factor. In this area research on an uncertain, alternative assessment methodology, as opposed to existing method evolution, is motivated by the need to advance transient stability assessment towards real time operation. (ERA citation 09:033473)
Keywords	Interconnected Power Systems Disturbances Errors Network Analysis Security Stability Transients ERDA/296000
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	97I - Electric Power Production 97G - Policies, Regulations & Studies 97E - Electric Power Transmission
Corporate Authors	ESCA Corp., Bellevue, WA.; Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	198423
Contract Number	AC01-79ET29362

Contribution to Power System State Estimation and Transient Stability Analysis.

Contribution to Power System State Estimation and Transient Stability Analysis.
DE84014170

Publication Date	1984
Page Count	120
Abstract	A well-established trend in the power system is the increase in control area interconnections and interdependent operating strategies. A more recent, but growing trend is a concomitant increase in information exchange. The former increases the dependence of one area's security upon the operating conditions of other areas, while the latter allows security assessment methods to more effectively account for these dependencies. The need to evolve state estimation technology, as these trends continue to evolve the nature of the problem, is the principle motivation for the direction taken in this area of development. A secondary focus of this research is on a particular aspect of the third security assessment activity. This is the assessment of a power system's capability to maintain synchronism following a major disturbance. Transient stability assessment today is not performed in the real time operating environment, because existing analysis methods are far too computationally intensive to be used. The significant level of manual interaction and judgement required is also a factor. In this area research on an uncertain, alternative assessment methodology, as opposed to existing method evolution, is motivated by the need to advance transient stability assessment towards real time operation. (ERA citation 09:033473)
Keywords	Interconnected Power Systems Disturbances Errors Network Analysis Security Stability Transients ERDA/296000
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	97I - Electric Power Production 97G - Policies, Regulations & Studies 97E - Electric Power Transmission
Corporate Authors	ESCA Corp., Bellevue, WA.; Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	198423
Contract Number	AC01-79ET29362