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A New Three-Phase Three-Winding Transformer ...

International Journal of Smart Grid and Clean Energy A New Three-Phase Three-Winding Transformer Electromagnetic Transient Model Biao Wanga*, Zhenghong Wangb a Sichuan Electric Power Research Institute, Chengdu 610072, China b Southwest Petroleum University, Chengdu 610500, China Abstract This paper firstly points out a defect of the damping trapezoidal method in electromagnetic transient simulation algorithm. The backward Euler method is recommended to use. Then, a new Three-Phase Three-Winding Transformer model which could consider ratio and connection group feature is put forward. Compared with PSCAD, it is obtained the proposed model is accurate and reliable. Keywords: Electromagnetic transient, Three-Phase Three-Winding Transformer , backward Euler method 1. Introduction In view of the implicit trapezoidal method with considerable accuracy and good numerical stability, the electromagnetic transient program mostly uses this method.

International Journal of Smart Grid and Clean Energy A New Three-Phase Three-Winding Transformer Electromagnetic Transient Model Biao Wanga*, Zhenghong Wangb a Sichuan Electric Power Research Institute, Chengdu 610072, China b Southwest Petroleum University, Chengdu 610500, China Abstract

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