Journal ArticleDOI
Power system dynamic response calculations
B. Stott
- Vol. 67, Iss: 2, pp 219-241
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TLDR
This paper is a critical tutorial-review of the calculation methods used routinely or investigated for use by the industry and concentrates on solution concepts and computational techniques rather than on the analysis of the numerical methods.Abstract:
Engineers in the power industry, face the problem that, while stability is increasingly a limiting factor in secure system operation, the simulation of system dynamic response is grossly overburdening on present-day digital computing resources. Each individual response case involves the step-by-step numerical solution in the time domain of perhaps thousands of nonlinear differential-algebraic equations, at a cost of up to several thousand dollars. A high premium is thus to be placed on the use of the most efficient and reliable modern calculation techniques. This paper is a critical tutorial-review of the calculation methods used routinely or investigated for use by the industry. It concentrates on solution concepts and computational techniques rather than on the analysis of the numerical methods. Details of system modeling are only emphasized when they affect the choice of solution method. The paper concludes with a view of the state of the art and a prediction of future directions of development.read more
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Direct methods for transient stability analysis of power systems: Recent results
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References
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Journal ArticleDOI
Direct solutions of sparse network equations by optimally ordered triangular factorization
W.F. Tinney,J.W. Walker +1 more
TL;DR: With this method, direct solutions are computed from sparse matrix factors instead of from a full inverse matrix, thereby gaining a significant advantage in speed, computer memory requirements, and reduced round-off error.
Journal ArticleDOI
Review of load-flow calculation methods
TL;DR: A survey is presented on the currently available numerical techniques for power-system load-flow calculation using the digital computer, and the suitabilities of various methods for modern applications such as security monitoring and optimal load flow are examined.
Journal ArticleDOI
Simultaneous Numerical Solution of Differential-Algebraic Equations
TL;DR: A unified method for handling the mixed differential and algebraic equations of the type that commonly occur in the transient analysis of large networks or in continuous system simulation is discussed.
Journal ArticleDOI
Computer representation of excitation systems
TL;DR: This paper suggests a common nomenclature and control system representation of the various excitation systems now available that can be used to define input data requirements for computer programs, and can provide a consistent format in which manufacturers can respond to requests for excitation system data to be used for system studies.
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