Simulation and the Monte Carlo Method
Simulation and the Monte Carlo Method
Theoretical and practical aspects of heating equation
WSEAS Transactions on Systems and Control
Electromagnetic and thermal model parameters of oil-filled transformers
WSEAS Transactions on Circuits and Systems
Non-linear thermal model for transformers study
WSEAS Transactions on Circuits and Systems
Modelling and simulations of oil-filled transformer loss-of-life models
WSEAS Transactions on Circuits and Systems
Parameters modelling of transformer
WSEAS Transactions on Circuits and Systems
Applications of genetic algorithms
WSEAS Transactions on Information Science and Applications
The behavior of a thermal unit
ASMCSS'09 Proceedings of the 3rd International Conference on Applied Mathematics, Simulation, Modelling, Circuits, Systems and Signals
Simulations of oil-filled transformer loss-of-life models
MMACTEE'09 Proceedings of the 11th WSEAS international conference on Mathematical methods and computational techniques in electrical engineering
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The study of predictive control of temperature in oil-filled transformers is performed in this work. In order to study transformers thermal loss of life, complex models taking into account electrical and thermal characteristics are required. Moreover, the precision of thermal models is dependent upon the exactitude of the parameters. The work presented in this article shows that, through electromagnetic similitude laws, for an homogeneous series of transformers with different rated powers, the main parameters required for the thermal model can be obtained. Different methodologies to estimate thermal parameters with data from standardised heat-run tests are compared. The foremost advantage of our alternative methodology is its compactness, since parameters are obtained only from the knowledge of transformer rated power. Theoretical results were compared with data from transformer manufacturers and the good agreement between both validates theoretical results is accomplished.