| 改进的三角形连接绕组变压器三相数学模型 |
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| 引用本文： | 赵芳,李学峰. 改进的三角形连接绕组变压器三相数学模型[J]. 山东科技大学学报(自然科学版), 2000, 0(4) |
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| 作者姓名： | 赵芳 李学峰 |
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| 作者单位： | 山东电力研究院 |
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| 摘 要： | 目前普遍采用的三角形连接绕组变压器的三相数学模型，可以导致电力系统三相基波与谐波节点的导纳矩阵奇异性，从而不能得到准确的基波与谐波潮流的计算结果。本文提出了一种改进的变压器模型可以避免出现以上缺点，且通过算例证明此模型是可行有效的。
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| 关 键 词： | 基波潮流 谐波潮流 奇异性 |
A Three-phase Mathematical Model of Transformers with Modified Delta-connected Windings |
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| ZHAO Fang,LI Xue-feng. A Three-phase Mathematical Model of Transformers with Modified Delta-connected Windings[J]. Journal of Shandong Univ of Sci and Technol: Nat Sci, 2000, 0(4) |
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| Authors: | ZHAO Fang LI Xue-feng |
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| Abstract: | The currently used threephase mathematical models of transformers with deltaconnected windings may lead to admittance matrices singularity at the threephase fundamental and harmonic nodes of power systems, which may result in incorrect ourcomes or inability to carry out threephase f undamental and/or harmonic load flow solutions. A modified model was presented i n this paper to keep the admittance matrices away from singularity. Examples hav e proved the correctness and efficiency of the proposed model. |
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| Keywords: | fundamental load flow harmonic load flow singula rity |
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