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Title:
Transformer Protection based on Dynamic State Estimation
Committee:
Dr. Meliopoulos, , Advisor
Dr. Saeedifard, Chair
Dr. Taylor
Dr. Sun
Abstract: The objective of the proposed research is to detect transformer internal faults or transformer overheating and trip the transformer, with immunity to external faults for which tripping of the transformer is not required. A new transformer protection scheme based on dynamic state estimation has been proposed. The electrothermal models of several types of transformer are built in an object-oriented manner with the introduction of Algebraic Quadratic Companion Form syntax. Several protection gaps, such as the coordination and settings of relays, have been resolved with proposed new method. The proposed method is secure, reliable, more sensitive and faster than legacy protection functions.
