A method of transformer parameters determination for power electronics applications

Monteiro, T. C.; Martinz, Fernando Ortiz; Komatsu, Wilson; Matakas, Lourenco

doi:10.1109/cobep.2009.5347683

Cited by 6 publications

(2 citation statements)

References 2 publications

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“…The algorithm provided a good foundation for online identification of transformer parameters and offers great potential for practical application. Some models and methods that describe the operation of a transformer at deep saturation were showed by [7]. Data processing of the voltage and current to obtain the transformer parameters, including non linear inductor, were presented.…”

Section: Introductionmentioning

confidence: 99%

The use of recursive least square to determine the model parameters of a transformer in different frequencies

Araújo¹,

Florentino²,

Ferreira³

et al. 2013

22nd International Conference and Exhibition on Electricity Distribution (CIRED 2013)

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This paper presents an alternative approach for determining the parameters of single-phase two-winding transformer. The dynamic parameters of a transformer, including its inductances and resistances are estimated by the application of recursive least squares algorithm on the measured data taken from the terminal voltage and current. The results show that the resistances increase and the inductances decrease with the elevation of the frequency. The model properly represents the characteristics of the original transformer. The accuracy of the results is also verified by simulation tests.

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Section: Introductionmentioning

confidence: 99%

The use of recursive least square to determine the model parameters of a transformer in different frequencies

Araújo¹,

Florentino²,

Ferreira³

et al. 2013

22nd International Conference and Exhibition on Electricity Distribution (CIRED 2013)

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“…Many studies have been done on the monitoring of various parameters of transformers. [1][2][3][4][5] Equivalent circuit parameters of transformers are the most important of them. Conventionally, equivalent circuit parameters of a transformer can be calculated from the results of two transformer tests: open circuit and short circuit tests.…”

Section: Introductionmentioning

confidence: 99%

An online parameter monitoring method for power transformers based on DEA

Dırık

Ozdemir

2012

2012 16th IEEE Mediterranean Electrotechnical Conference

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Transformers are the most prominent elements of power systems. In some cases, it may be desired to monitor their equivalent circuit parameters in order to establish the electrical models of them or to determine some of the potential failures in advance. In this work, a novel method that provides online monitoring of equivalent circuit parameters of transformer is presented. This method is based on differential equation algorithm (DEA) that uses a small number of voltage and current samples. The effectiveness of proposed method is shown by computer simulations.

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