Abstract

The purpose of this paper is to develop an improved three-phase transformer model for ATP and parameter estimation methods that can efficiently utilize the limited available information such as factory test reports. In this paper, improved topologically-correct duality-based models are developed for three-phase autotransformers having shell-form cores. The problem in the implementation of detailed models is the lack of complete and reliable data. Therefore, parameter estimation methods are developed to determine the parameters of a given model in cases where available information is incomplete. The transformer nameplate data is required and relative physical dimensions of the core are estimated. The models include a separate representation of each segment of the core, including hysteresis of the core, ${\lambda}-i$ saturation characteristic and core loss.

주제어

#ATP   #Autotransformer   #Duality   #EMTP   #Shell-form   #Optimization   #Parameter estimation  

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참고문헌 (6)

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5. Sung Don Cho, 'Transformer Core Model and Parameter Estimation for ATP', KIEE International Transactions on Power Engineering, vol. 5-A, no. 4, 2005 
6. Working Group C-5 of the Systems Protection Subcommittee, 'Mathematical models for current, voltage, and coupling capacitor voltage transformers' IEEE Transactions on Power Delivery, Vol. 15 Issue: 1, Jan. 2000, pp. 62 –2 

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