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- J . Endrenyi, S . Aboresheid, +16 authors Ch . Singh
- 2001

In this paper, the most frequently used maintenance strategies are reviewed. Distinction is made between strategies where maintenance consists of replacement by a new (or “good as new”) component and where it is represented by a less costly activity resulting in a limited improvement of the component’s condition. Methods are also divided into categories… (More)

- Siddhartha Kumar Khaitan, James D. McCalley
- IEEE Systems Journal
- 2015

Prediction of the remaining life of high-voltage power transformers is an important issue for energy companies because of the need for planning maintenance and capital expenditures. Lifetime data for such transformers are complicated because transformer lifetimes can extend over many decades and transformer designs and manufacturing practices have evolved.… (More)

This paper is the first of a two-part paper presenting a multiperiod generalized network flow model of the integrated energy system in the United States. Part I describes the modeling approach used to evaluate the economic efficiencies of the system-wide energy flows, from the coal and natural gas suppliers to the electric load centers. Under the proposed… (More)

This paper describes a resource optimization approach for transmission system maintenance selection and scheduling that is based on the cumulative long-term risk caused by failure of each piece of equipment. This approach accounts for equipment failure probability, equipment damage, as well as outage consequence in term of dispatch cost. A method of… (More)

This paper is the second of a two-part paper and describes the application of a multiperiod generalized network flow model that is used to analyze the economic efficiencies of the energy movements from the coal and natural gas suppliers to the electric load centers. The modeling approach, mathematical formulation, and modeling assumptions are presented in… (More)

Condition-based maintenance is rapidly gaining favor as a way to prevent the failures of capital-intensive assets and to maintain them in good operating condition with minimum cost. A valuable and increasingly prevalent way to incorporate condition information into risk estimation is by the proportional hazards model (PHM), which explicitly includes both… (More)

- V. Vitta, James D. McCalley, Vincent Van Acker
- 2004

This paper presents an approach to calculate risk of transient instability of an operating point for a power system. Risk is defined as the product of the probability of transient instability and the cost consequences of this instability in the event that it occurs. This measure combines the security aspects with the economics and gives an objective idea of… (More)

This paper proposes the application of unsymmetric multifrontal method to solve the differential algebraic equations (DAE) encountered in the power system dynamic simulation. The proposed method achieves great computational efficiency as compared to the conventional Gaussian elimination methods and other linear sparse solvers due to the inherent parallel… (More)

Special protection systems (SPS) have been widely used to increase the transfer capability of the network by assisting system operators in administering fast corrective actions. Compared with constructing new transmission facilities, SPS can be placed in service relatively quickly and inexpensively. However, increased reliance on SPS results in additional… (More)