Optimal and economic selection of turn ratio for unit transformer using generator capability curves of synchronous generators

Seyed M.H. NABAVI; Somayeh HAJFOROOSH; Sara SETAYESH

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Optimal and economic selection of turn ratio for unit transformer using generator capability curves of synchronous generators

机译：利用同步发电机的发电量曲线进行单元变压器匝比优化与经济选择。

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One of the most important subjects in power systems is an optimal and economic design of power transformers. In this paper, determination of turn ratios for power transformers that are directly connected to generators is evaluated considering reactive power generation and its impact on the optimal turn ratio selection. A generator capability curve has been used to explain all details. Three different methods have been examined and the simulation results have been compared in a real test system, on Rudbar-Lorestan, Karkheh , Karoon 3, Masjed Solayman, and Gotvand hydro power plants. The obtained results illustrate that without considering limits of reactive power the achieved turn ratios can be much higher than the optimal values.

机译：电力系统中最重要的主题之一是电力变压器的优化和经济设计。在本文中，考虑到无功功率及其对最佳匝数比选择的影响，对直接连接到发电机的电力变压器的匝数比的确定进行了评估。发电机能力曲线已用于解释所有细节。在真实的测试系统中，对Rudbar-Lorestan，Karkheh，Karoon 3，Masjed Solayman和Gotvand水力发电厂的三种测试方法进行了检验，并比较了模拟结果。获得的结果说明，在不考虑无功功率限制的情况下，所获得的匝数比可能远远高于最佳值。

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《Leonardo Electronic Journal of Practices and Technologies》 |2015年第26期|共14页
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Seyed M.H. NABAVI; Somayeh HAJFOROOSH; Sara SETAYESH;
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中图分类无线电电子学、电信技术;
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Optimal and economic selection of turn ratio for unit transformer using generator capability curves of synchronous generators

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