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- W3204865889 abstract "The identification of load model parameters from practical measurement data has become an essential method to build load models for power system simulation, analysis and control. In practical situations, the accuracy of load model parameters identification results is impacted by data quality and measurement accuracy, 1 which leads to the problem of identifiability. In this paper, an identifiability analysis methodology of load model parameters by estimating the confidential intervals (CIs) of the parameters is proposed. The load model structure and the combined optimization and regression method to identify the parameters are introduced first. Then, the definition and analysis method of identifiability are discussed. The CIs of the parameters are estimated through the profile likelihood method, based on which a practical identifiability index (PII) is defined to evaluate identifiability quantitatively. Finally, the effectiveness of the proposed analysis approach is validated by the case study results in a practical provincial power grid. The results have shown that the impact of various disturbance magnitudes, measurement errors and data length can all be reflected by the proposed PII. Furthermore, the proposed PII can provide guidance in data length selection in practical load model identification situations." @default.
- W3204865889 created "2021-10-11" @default.
- W3204865889 date "2020-01-01" @default.
- W3204865889 modified "2023-09-26" @default.
- W3204865889 title "Identifiability analysis of load model by estimating parameters' confidential intervals" @default.
- W3204865889 doi "https://doi.org/10.17775/cseejpes.2020.02780" @default.
- W3204865889 hasPublicationYear "2020" @default.
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