Wideband modeling of a 45-MVA generator step-up transformer for network interaction studies
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- 作者：Bjø ; rn Gustavsena ; bjorn.gustavsen@sintef.no" class="auth_mail" title="E-mail the corresponding author ; ; Bjø ; rn Tandstadb ; bjorn.tandstad@statkraft.no" class="auth_mail" title="E-mail the corresponding author
- 关键词：Transformer ; Black-box model ; Frequency dependency ; Simulation ; Transients ; Transient recovery voltage
- 刊名：Electric Power Systems Research
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：142
- 期：Complete
- 页码：47-57
- 全文大小：4542 K
文摘
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A wide-band model of a generator transformer is presented.
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The model is obtained via frequency sweep measurements and fitting with rational functions.
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The model provides accurate results in high-frequency transient simulations.
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Applications include prediction of voltage transfer between windings and resonant interaction with the network.