Crow Search Optimization Based Approach for Parameter Estimation of SRGMs

Chaudhary, Ankur; Agarwal, Arun; Rana, Avinash Kaur; Kumar, Vijay

doi:10.1109/aicai.2019.8701318

Cited by 9 publications

(1 citation statement)

References 21 publications

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“…To deal with the problem of parametric estimation in single-phase transformers modeled in the previous section, this research proposes the application of the recently developed metaheuristic optimization algorithm known as the crow search algorithm [22,26]. The main idea of the CSA is to model the way crows search (steal) for their food and store it in secret places [27,28]. The main characteristics of the CSA are described below.…”

Section: Solution Methodology Proposedmentioning

confidence: 99%

Application of the Crow Search Algorithm to the Problem of the Parametric Estimation in Transformers Considering Voltage and Current Measures

2022

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The problem of the electrical characterization of single-phase transformers is addressed in this research through the application of the crow search algorithm (CSA). A nonlinear programming model to determine the series and parallel impedances of the transformer is formulated using the mean square error (MSE) between the voltages and currents measured and calculated as the objective function. The CSA is selected as a solution technique since it is efficient in dealing with complex nonlinear programming models using penalty factors to explore and exploit the solution space with minimum computational effort. Numerical results in three single-phase transformers with nominal sizes of 20 kVA, 45 kVA, 112.5 kVA, and 167 kVA demonstrate the efficiency of the proposed approach to define the transformer parameters when compared with the large-scale nonlinear solver fmincon in the MATLAB programming environment. Regarding the final objective function value, the CSA reaches objective functions lower than 2.75×10−11 for all the simulation cases, which confirms their effectiveness in minimizing the MSE between real (measured) and expected (calculated) voltage and current variables in the transformer.

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