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Improved simulation of HVDC converter transformers in electromagnetic transient programs

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4 Author(s)
Arrillaga, J. ; Canterbury Univ., Christchurch, New Zealand ; Enright, W. ; Watson, N.R. ; Wood, A.R.

In electromagnetic transient simulation, HVDC power converter transformers are normally represented as magnetically independent single-phase units. However, three-limb power converter transformers are often used in HVDC schemes. Single-phase and three-limb three-phase transformer models are derived using a unified magnetic equivalent circuit concept. The new models are verified with laboratory and data. Also, a comparison is made between the transient performance of HVDC power converters with conventional and proposed transformer models

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Generation, Transmission and Distribution, IEE Proceedings-  (Volume:144 ,  Issue: 2 )