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首页> 外文期刊>IEEE Transactions on Industrial Electronics >Cosine Similarity Based Line Protection for Large-Scale Wind Farms
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Cosine Similarity Based Line Protection for Large-Scale Wind Farms

机译:基于大型风电场的余弦相似性线路保护

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摘要

In this article, power converters are used in the integrated wind farms and can change the fault characteristics of the power system. The conventional pilot protection suffers from low sensitivity, or even the risk of maloperation. In order to address these problems, the fault features of the transient current of various power sources are analyzed and a novel pilot protection based on cosine similarity is proposed. To validate the proposed protection, the real time digital simulator hardware-in-loop tests are carried out to verify the proposed method. In addition, a field short-circuit test is conducted in a real wind farm to examine the performances of the proposed protection. The results demonstrate that the proposed method can be potential option for industrial applications.
机译:在本文中,电源转换器用于集成的风电场,可以改变电力系统的故障特性。传统的先导保护患有低敏感性,甚至是恶作剧的风险。为了解决这些问题,分析了各种电源的瞬态电流的故障特征,提出了基于余弦相似性的新型导频保护。为了验证所提出的保护,实时数字模拟器硬件环路测试是为了验证所提出的方法。此外,在真正的风电场中进行现场短路测试,以检查所提出的保护的性能。结果表明,所提出的方法可以是工业应用的潜在选择。

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