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- W3048832489 abstract "This paper proposes an approach for the estimation of dynamic states and parameters of a synchronous generator from digital protective relay (DPR) records. Digital fault recorder data or phasor measurement data based approaches are mostly used for aggregate generator models in the literature. The DPR records are usually available for individual generators in a plant and hence can be used for individual generator model development. Constrained Iterative Unscented Kalman Filter (CIUKF) is used in this paper which combines the benefit of iterations and constraints on variables to improve the accuracy of estimation. Adomian Decomposition Method (ADM) is used for solving the IEEE model 1.1 synchronous machine equations which has a less computational burden and higher accuracy when compared to the widely used Modified-Euler (ME) method. The effectiveness of the proposed approach is demonstrated using the WECC-3 generator 9 bus system. The simulation data is generated from a transient stability program with 1 kHz sampling rate for a duration of 3s to resemble a DPR record. The CIUKF is tailored to get good convergence and accuracy with short data records. It has been observed that the accuracy obtained with the proposed approach is good enough to preserve the rotor modes of oscillation." @default.
- W3048832489 created "2020-08-18" @default.
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- W3048832489 date "2020-12-01" @default.
- W3048832489 modified "2023-09-25" @default.
- W3048832489 title "Dynamic State and Parameter Estimation of Synchronous Generator from Digital Relay Records" @default.
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- W3048832489 doi "https://doi.org/10.1016/j.epsr.2020.106743" @default.
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